Page 1 ® DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Product Manual Date: 19 January 96 Order Number: 81-109132-03...
Page 2 Quantum reserves the right to make changes and improvements to its products, without incurring any obligation to incorporate such changes or improvements in units previously sold or shipped. You can request Quantum publications from your Quantum Sales Representative, or order them directly from Quantum.
Page 3 The following FCC Notice applies to the DLT2000 drive: FCC NOTICE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installation.
Page 4 The following FCC Notice applies to DLT2500 and DLT2700 mini-library: FCC NOTICE: This equipment has been tested and found to comply with the limits for a Class A device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Page 5: Table Of Contents
CHAPTER 1: OVERVIEW AND FEATURES OF THE DLT2000/DLT2500/DLT2700 PRODUCT 1.1 I ...1-1 HAPTER 1.2 P ...1-1 RODUCT VERVIEW 1.3 F RANSFER 1.4 H ...1-2 APACITY 1.5 C ...1-2 OMPACTION 1.6 S ...1-2 TRONG EDIA 1.7 C ...1-2 OMPATIBILITY 1.8 F IRMWARE PDATE APABILITY...
Page 6 Table of Contents 3.2.2 Changing the SCSI ID ...3-4 3.2.3 Setting the TRM ENB (Single-ended only)/TRM PWR Jumpers...3-5 3.2.4 Locating the SCSI Cable and Power Connectors...3-6 3.3 S ...3-7 ELECTING ENSITY 3.4 O VERVIEW OF THE RONT 3.5 D ESCRIPTION OF ONTROLS AND 3.5.1 Beeper...3-11 3.5.2 Unload Button...3-11...
Page 7 4.9.1 Tape Cartridge, positioning the write-protect switch...4-20 4.9.2 Data protection ...4-21 4.10 D ESCRIPTION OF THE 4.10.1 Insert cartridge, magazine...4-23 4.10.2 Removing cartridge ...4-25 4.10.3 Magazine, removing from mini-library...4-26 4.10.4 Magazine, installing...4-26 4.10.5 Selecting a Cartridge from the Magazine ...4-27 4.10.6 Loading cartridge into the Drive...4-27 4.10.7 Unloading cartridge from the drive ...4-28 4.10.8 Opening the Magazine Door...4-28...
Page 8 Table of Contents 6.3 B ACKUP PERATION AILURE 6.4 A VOIDING ASIC ROBLEMS 6.5 DLT2500 E RROR ONDITIONS 6.5.1 DLT2500 Magazine Error ...6-5 6.5.1.1 DLT2500 Clearing a Magazine...6-5 6.5.2 DLT2500 Loader Error Description ...6-5 6.5.3 DLT2500 Drive Error Description ...6-5 6.5.4 DLT2500 Controller Error Description ...6-5 6.5.5 DLT2500 Unknown Error Description...6-6 6.5.5.1 DLT2500 Clearing a Loader, Drive, Controller, or Unknown...6-6...
Page 9 8.4.1 Control Byte - Flag and Link Bits...8-14 8.4.2 Summary of Supported Sequential-Access Device Commands...8-15 8.4.3 ERASE (19h)...8-16 8.4.4 INQUIRY (12h) ...8-17 8.4.4.1 Drive Inquiry Response ...8-18 8.4.4 2 Vendor Unique Inquiry ...8-21 8.4.4.3 Vital Product Data Pages ...8-22 8.4.4.4 Media Loader Inquiry Response ...8-24 8.4.5 LOAD-UNLOAD (1Bh)...8-25 8.4.6 LOCATE (2Bh) ...8-27 8.4.7 LOG SELECT (4Ch) ...8-28...
Page 10 8.5.2 READ ELEMENT STATUS (B8h) ...8-133 8.5.2.1 Element Status Data Header...8-134 8.5.2.2 M EDIUM RANSPORT 8.5.2.3 Storage Element Status Page...8-136 8.5.2.4 Data Transfer Element Status Page...8-137 8.5.3 MODE SENSE/SELECT (1Ah/15h) ...8-138 8.5.3.1 Device Capabilities Page (1Fh)...8-138 8.5.3.2 Element Address Assignment Page (1Dh) ...8-140 8.5.3.3 Transport Geometry Parameters Page (1Eh)...8-142...
Page 11 A.3.2 DLT2000 Timing Characteristics ... A-11 A.3.3 DLT2500xt Media Loader Timing Characteristics... A-12 A.3.4 DLT2700 Media Loader Timing Characteristics... A-12 A.4 E NVIRONMENTAL PECIFICATIONS A.4.1 Temperature and Humidity ... A-13 A.4.2 Altitude ... A-14 A.5 V IBRATION AND HOCK A.5.1 Operating Shock and Vibration ... A-15 A.5.2 Nonoperating Shock and Vibrattion ...
Page 12: List Of Figures
Table of Contents 2-1 D ...2-3 RIVE RONT ANEL 2-2 C SCSI ID HANGING THE 2-3 R ANEL OMPONENTS 3-1 DLT2000 D RIVE ONNECTORS 3-2 SCSI ID C ONNECTOR 3-3 J ...3-4 UMPER OSITIONS 3-4 J TRM PWR/TRM ENB C UMPER ETTINGS FOR 3-5 DLT2000 R...
Page 13 8-10 LOAD-UNLOAD CDB ...8-25 8-11 LOCATE CDB...8-27 8-12 LOG SELECT CDB ...8-28 8-13 LOG P ONTROL EFINITIONS 8-14 C ...8-30 LEARABLE AGES 8-15 R RITE RRROR ELECT 8-16 P ARAMETER ODES UPPORTED 8-17 LOG SENSED CDB ...8-34 8-18 LOG P ONTROL EFINITIONS 8-19 LOG SENSE P...
Page 14 Table of Contents 8-53 D ISCONNECT ECONNECT 8-54 M EDIUM ARTITION 8-55 E RROR ECOVERY 8-56 PREVENT/ALLOW MEDIUM REMOVAL CDB ...8-89 8-57 READ CDB...8-90 8-58 READ BLOCK LIMITS CDB ...8-92 8-59 READ BLOCK LIMITS ...8-92 8-60 READ BUFFER CDB...8-93 8-61 READ BUFFER M ODES 8-62 READ BUFFER D 8-63 READ BUFFER D...
Page 15 A-3 M OUNTING IMENSIONS D-1 EEROM L ... D-2 AYOUT D-2 B LOG P UGCHECK ACKET AYOUT D-3 POST LOG P ACKET AYOUT D-4 EVENT LOG P ACKET AYOUT D-5 D R/W E IRECTORY RROR VENT D-6 C (CUP) LOG P PDATE ACKET )...
Page 16 Table of Contents 2-1 A DDING A ERMINATOR 2-2 POST--R IGHT NDICATORS 2-3 A POST ...2-9 FTER 2-4 DLT2000 T ROUBLESHOOTING 3-1 R ESULTS OF ENSITY ELECTION 3-2 POST S EQUENCE OF VENTS 3-3 D ETERMINING THE RIVE 3-4 B EFORE OADING THE 3-4 A...
Page 17 A.3 DLT2500 M IBRARY HYSICAL A.4 DLT2700 M IBRARY HYSICAL A-5 DLT2000 T IMING HARACTERISTICS A-6 DLT2500 EDIA OADER A-7 DLT2700 M EDIA OADER IMING A-8 O ... A-13 PERATING ANGES A-9 P —N OWER ANGES A-10 S TORAGE ANGES NPACKED OR A-11 S ...
Page 18 Table of Contents xviii-DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 19: Revision History
This Revision History provides a concise publication record of this manual. It lists the manual revision levels, release dates, and reasons for the revisions. Manual No. - Rev Level 81-109132-01 April 14, 1995 81-109132-02 August 18, 1995 81-109132-03 January 19, 1996 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem - xix REVISION HISTORY Date...
Page 20 Revision History xx - DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 21: Purpose Of This Manual
To the Reader: QUANTUM makes every effort to ensure the accuracy of information. However, some errors may have been introduced inadvertently; they will be corrected in the next release. QUANTUM recognizes that some users may require additional content. We welcome your feedback and your suggestions for enhancements and we will evaluate your input for a future release.
Page 22: Structure Of This Manual
Preface Structure of This Manual Chapter 1, Overview and Features of the DLT2000/DLT2500/DLT2700 Product, gives a product overview and lists the product features of the DLT2000/DLT2700 tape subsystem. Chapter 2, Installing and Configuring the DLT2000 Tabletop Drive, describes installing and configuring the DLT2000 tabletop tape drive. Chapter 3, Configuring and Operating the DLT2000 Tape Drive, includes selecting density, configuration, and other operation information for the tape drive, such as front panel indicators and controls, Power-on Self-test, the tape cartridge write-protect...
Page 23: In Thi Chapter
Overview and Features of the DLT2000/DLT2500/DLT2700 Product 1.1 In This Chapter Chapter 1 includes the following main topics and sections: Topic Product Overview Fast Data Transfer Rate High-Capacity Compaction Strong Media Compatibility Firmware Update Capability Embedded Diagnostics 1.2 Product Overview The DLT2000/DLT2500/DLT2700 is a high-performance, high-capacity, streaming cartridge tape product designed for use on midrange and high-end computing systems.
Page 24: Fast Data Transfer Rate
1.7 Compatibility Quantum is committed to maintaining compatibility within the DLT family of tape drives. DLT2000/DLT2500/DLT2700 tape products are the fourth generation of tape products, started with the DLT260 and DLT600 drives.
Page 25: Firmware Update Capability
Overview and Features of the DLT2000/DLT2500/DLT2700 Product The user can select tape density for the CompacTape III cartridge on the loader or drive front panel or by using the SCSI MODE SELECT command. The DLT2000/DLT2500/DLT2700 can write 2.6, 6.0, and 10.0 GB tape formats for 100% interchange compatibility with earlier DLT drives using the CompacTape III cartridge.
Page 26 Overview and Features of the DLT2000/DLT2500/DLT2700 Product 1-4 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 27: In Thi Chapter
Installing and Configuring the DLT2000 2.1 In This Chapter Chapter 2 includes the following main topics and sections: Topic Prepare for the Installation Install the Subsystem Configure the DLT2000 Tabletop Connect the Cables Test the Installation DLT2000 Troubleshooting Chart 2.2 Prepare for the Installation This section describes how to prepare for the installation of the DLT2000 cartridge tape subsystem including: Topic...
Page 28: Installation Setup
Installing and Configuring the DLT2000 Tabletop Drive 2.2.2 Installation Setup The steps for installation setup are: Step Action Unpack and check your shipment. Choose a site for the DLT2000 tabletop subsystem. Power off the system on which the DLT2000 tabletop subsystem is to be installed.
Page 29: Drive Front Panel
Installing and Configuring the DLT2000 Tabletop Drive Figure 2-1 shows the DLT2000. SELECT BUTTON CARTRIDGE INSERT/RELEASE HANDLE (DOWN) Z K O - 1 2 1 7 - 0 2 - D G Figure 2-1 Drive Front Panel DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 2-3...
Page 30: Install The Subsystem
Installing and Configuring the DLT2000 Tabletop Drive 2.3 Install the Subsystem To install the DLT2000: Step Action Note the DLT2000 factory settings. Review Section 2.4.1. Configure the DLT2000 for use on your system: If you need to Disable parity checking Change the SCSI ID Connect the cables.
Page 31: Disable Parity Checking
2.4.2 Disable Parity Checking To disable parity, see your service representative. 2.4.3 Changing the SCSI ID To change the SCSI ID use the pushbutton switch on the rear of the drive. Press the switch button(s) above or below the number display (0-7) to set the desired SCSI ID. Press the top button to increase the number or press the bottom button to decrease the number.
Page 32: Examine The Dlt2000 Rear Panel
Installing and Configuring the DLT2000 Tabletop Drive 2.5.1 Examine the DLT2000 Rear Panel Examine the components on the DLT2000 rear panel to complete the physical installation (Figure 2-3). Power Power Switch Connector Figure 2-3 Rear Panel Components 2.5.2 Connect the SCSI Signal Cable To connect the SCSI signal cable: Connect one end of the SCSI cable to the leftmost SCSI signal connector on the DLT2000 rear panel.
Page 33: Terminate The Scsi Bus
2.5.3 Terminate the SCSI Bus _________________________ Note _____________________________ The SCSI bus must be terminated at both ends and at least one device must supply terminator power. ___________________________________________________________ Table 2-1 indicates when and where to add a terminator. If the DLT2000 is The last or only device on the bus and you are going to terminate the cables externally...
Page 34: Test The Installation
Installing and Configuring the DLT2000 Tabletop Drive 2.6 Test the Installation Section 2.6 includes the following topics: Topic Run the Power-On Self-Test (POST) What to Do after POST 2.6.1 Run POST To test the installation for the DLT2000 by running POST: Turn on the system power.
Page 35: What To Do After Post
2.6.2 What to Do after POST All the events in Table 2-2 took place All left- or right-side lights on the DLT2000 front panel blink only Installing and Configuring the DLT2000 Tabletop Drive Table 2-3 After POST Then POST succeeded. Bring up the system and run the optional system tests.
Page 36: Dlt2000 Troubleshooting Chart
Installing and Configuring the DLT2000 Tabletop Drive 2.7 DLT2000 Troubleshooting Chart If the DLT2000 fails during POST or operation, use Table 2-4 to determine the problem and the action to take. Table 2-4 DLT2000 Troubleshooting Chart If. . . Your system does not recognize the DLT2000 2-10 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 37: After
Table 2-4 DLT2000 Troubleshooting Chart (cont’d) If. . . Then . . . Your system does not 1. The SCSI bus recognize the might be too long. DLT2000 2. Too many devices might be on the bus. The DLT2000 does The DLT2000 has no not power up power...
Page 38 Installing and Configuring the DLT2000 Tabletop Drive 2-12 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 39: In Thi Chapter
Configuring and Operating the DLT2000 3.1 In This Chapter The configuration section in this chapter applies to the basic drive without the SCSI ID switchpack and power supply. (Chapter 2 applies to configuring the tabletop). Chapter 3 includes these main topics and sections: Topic Before You Install the DLT2000 Drive Overview of the Front Panel...
Page 40: Disabling Parity Checking
Configuring and Operating the DLT2000 Basic Tape Drive 3.2.1 Disabling Parity Checking If your system does not generate parity, you can disable parity checking by adding a jumper to the SCSI connector on the left side of the DLT2000 drive (Figure 3-1). To disable parity: Use Figure 3-1, Number Front...
Page 41: Scsi Id Connector Pins
Configuring and Operating the DLT2000 Basic Tape Drive Figure 3-2 shows what the pins on the SCSI ID connector represent. Remote ID Present Figure 3-2 SCSI ID Connector Pins _________________________ Note _____________________________ A jumper must always be placed on the Remote ID Present position (Figure 3-2) for the host to recognize any ID selection on this connector.
Page 42: Changing The Scsi Id
Configuring and Operating the DLT2000 Basic Tape Drive Place the jumper in the disable parity check position, as shown in Letter I, Figure 3-3. 8 - Bit A. SCSI ID 0 D. SCSI ID 3 B. SCSI ID 1 E. SCSI ID 4 C.
Page 43: Setting The Trm Enb (Single-Ended Only)/Trm Pwr Jumpers
3.2.3 Setting the TRM ENB (Single-ended Only)/TRM PWR Jumpers _________________________ Note _____________________________ The Small Computer System Interface (SCSI) bus must be terminated at both ends of the bus, and at least one device must supply terminator power. ___________________________________________________________ The single-ended DLT2000 controller module has active terminators. The differential DLT2000 controller module does not have on-board termination.
Page 44: Locating The Scsi Cable And Power Connectors
3.2.4 Locating the SCSI Cable and Power Connectors To install the DLT2000 drive, note the location of the rear connectors (Figure 3-5). Rear A Rear B Figure 3-5 DLT2000 Rear Connectors SCSI Connector 3-6 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem ZKO−1217−16−RGS Power Connector Power Connector (Storage Works Option)
Page 45: Selecting Density
3.3 Selecting Density Section 3.3 describes the drive's density select features. _________________________ Caution __________________________ If a prerecorded tape and write from beginning of tape (BOT), all prerecorded data is lost. This includes density changes, since they only occur when writing from BOT. ___________________________________________________________ Ways of Selecting Density Using CompacTape III the density defaults to 10.0 GB native.
Page 46 Configuring and Operating the DLT2000 Basic Tape Drive You can use the drive's control panel at various times, not just after loading a tape. Density selection is inactive until the write from BOT command is issued. The controller remembers the density selection state until you do one of the following: Change the density selection Unload the tape Density Select Example...
Page 47: Results Of Density
Configuring and Operating the DLT2000 Basic Tape Drive Table 3-1 shows the results of density selection. Table 3-1 Results of Density Selection The Density Select button is not used The Density Select button is used, and if the actual tape density is the same as the density you selected The Density Select button is...
Page 48: Overview Of The Front Panel
Configuring and Operating the DLT2000 Basic Tape Drive 3.4 Overview of the Front Panel The DLT2000 has the following indicators and controls for operating the drive Figure 3-6): SELECT BUTTON Indicators (Left Side of Drive) Density light 2.6 Density light 6.0 Density light 10.0 Compress light Density Override light...
Page 49: Description Of Controls And Indicators
3.5 Description of Controls and Indicators Section 3.5 includes the following sections: Topic Beeper Unload Button Cartridge Insert/Release Handle Indicator Action during Power-on Self-test and Operation 3.5.1 Beeper A beeper sounds when you can operate the cartridge insert/release handle. When you hear the beep, the green Operate Handle light should be on.
Page 50: Indicator Action During Power-On Self Test And Operation
Configuring and Operating the DLT2000 Basic Tape Drive 3.5.4 Indicator Action during Power-On Self-Test and Operation When you turn on system power, the drive performs the power-on self-test (POST). The sequence of events is: 3-12 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 51 Configuring and Operating the DLT2000 Basic Tape Drive Table 3-2 POST Sequence of Events Stage What Happens The lights on the right front panel turn on sequentially from top to bottom. All lights stay on for a few seconds. The lights on the left front panel turn on at the same time for about three seconds and then turn off.
Page 52 Configuring and Operating the DLT2000 Basic Tape Drive Table 3-2 POST Sequence of Events Cont’d Stage What Happens Drive State e. The drive detects an error condition POST completes in about 15 seconds and the drive responds normally to all commands. However, it might take longer for the media to become ready.
Page 53 Table 3-4 Determining the Drive's Operating Condition (cont’d) Label Color Light (Left Front Panel) Operate Handle Green All four right-side – lights or all left-side lights Yellow Yellow 10.0 Yellow Compress Yellow Density Override Yellow DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 3-15 Configuring and Operating the DLT2000 Basic Tape Drive State Operating Condition...
Page 54 Configuring and Operating the DLT2000 Basic Tape Drive Table 3-4 Determining the Drive's Operating Condition (cont’d) Label Color Light (Left Front Panel) All four right-side or all left-side lights 3-16 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem State Operating Condition Blinking A POST error occurred.
Page 55: Description Of The Tape Cartridge
3.6 Description of the Tape Cartridge The CompacTape III tape cartridge is a 4-inch, gray/brown, plastic cartridge containing 1100 feet of 1/2 inch magnetic metal particle tape. 3.6.1 Cartridge Write-Protect Switch The tape cartridge has a write-protect switch to prevent accidental erasure of data. Before loading the tape cartridge into the drive, position the write-protect switch on the front of the cartridge (Figure 3-7).
Page 56: Tape Cartridge
Configuring and Operating the DLT2000 Basic Tape Drive Figure 3-7 shows the write-protect switch on the tape cartridge : 3-18 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem W R I T E - P R O T E C T E D Figure 3-7 Tape Cartridge O R A N G E I N D I C A T O R W R I T E -...
Page 57: Data Protection
3.6.2 Data Protection When the cartridge write-protect switch is to the left, the drive turns on the write protect LED immediately. But, if the drive is writing to the tape, write protect does not take effect until the write completes. Table 3-5 describes what happens to data protection when you move the write-protect switch before loading the cartridge.
Page 58: Loading A Cartridge
Configuring and Operating the DLT2000 Basic Tape Drive 3.7 Loading a Cartridge The following are more detailed steps for loading a cartridge (Figure 3-8): When the green light is on steady, pull the cartridge insert/release handle open. Insert the cartridge. Push the cartridge into the drive.
Page 59: Loading A Cartridge
Configuring and Operating the DLT2000 Basic Tape Drive Figure 3-8 shows how to load a cartridge into the drive. 1. 2. 3. 4. Z K O - 1 2 1 7 - 1 0 - D G Figure 3-8 Loading a Cartridge DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 3-21...
Page 60: Tape In Use
Configuring and Operating the DLT2000 Basic Tape Drive 3.7.1 Tape in Use Whenever the yellow Tape in Use light is on steady, the tape is ready to use. When the tape is being read, written, or rewound, Tape in Use light blinks. Use Table 3-7 to determine what is happening during cartridge use.
Page 61: Using The Cleaning Tape Cartridge
3.8 Using the Cleaning Tape Cartridge Use Table 3-8 to determine when to use the cleaning cartridge. Table 3-8 When to Use the Cleaning Cartridge 1. Use Cleaning Tape lights (Figure 3-6) 2. A data cartridge causes Use Cleaning Tape to blink 3.
Page 62: Unloading A Cartridge
Configuring and Operating the DLT2000 Basic Tape Drive 3.9 Unloading a Cartridge _______________________CAUTIONS ___________________________ Remove a cartridge from the drive before turning off host system power. Failure to remove a cartridge can result in cartridge and drive damage. When you remove the cartridge from the drive, return the cartridge to its plastic case to prolong the cartridge life.
Page 63: Unloading A Cartridge
Configuring and Operating the DLT2000 Basic Tape Drive 1. 2. 3. 4. Z K O - 1 2 1 7 - 0 9 - D G Figure 3-9 Unloading a Cartridge DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 3-25...
Page 64: Preserving Cartridges
Configuring and Operating the DLT2000 Basic Tape Drive 3.10 Preserving Cartridges For longer life of recorded or unrecorded cartridges, store cartridges in a clean environment with these conditions: Do not drop or bang the cartridge. This can displace the tape leader, making the cartridge unusable and possibly damaging the drive.
Page 65: In Thi Chapter
Configuring and Operating the DLT2500 4.1 In This Chapter The configuration section in this chapter applies to the mini-library and its operation. Chapter 4 includes these main topics and sections: Topic Introduction to the Mini-Library Configure the DLT2500 Mini-Library Installation Test Operator Control Panel Key Lock Selecting Density...
Page 66: Loosening The Shipping Screw
Configuring and Operating the DLT2500 Mini-Library MLO–012160 Shipping Screw Locking Lever Figure 4-1 Loosening the Shipping Screw Under the Mini-Library 4-2 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem...
Page 67: Rotate The Locking Lever
Configuring and Operating the DLT2500 Mini-Library MLO–012863 Figure 4-2 Rotate the Locking Lever Lift the locking lever on the front of the mini-library (Figure 4-2) to rotate the magazine locking mechanism. This allows you to remove the magazine from the mini-library. DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem 4-3...
Page 68: P Anel C Omponents
Configuring and Operating the DLT2500 Mini-Library Label Figure 4-3 Mini-Library Rear Panel Components 4-4 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem MLO-012002 Power Switch/Power Connector SCSI Connectors...
Page 69 Configuring and Operating the DLT2500 Mini-Library MLO–012131 Magazine Door Display Operator Buttons Key Lock Figure 4-4 Front of the DLT2500 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem 4-5...
Page 70: Introduction To The Mini-Library
Configuring and Operating the DLT2500 Mini-Library 4.2 Introduction to the Mini-Library The mini-library includes a DLT2000 tape drive, a media loader, and a 5-cartridge removable magazine. The same SCSI target controller board controls the tape drive and the media loader. If the controller detects the loader's presence when the system is turned on, the loader is presented as a SCSI-2 medium changer device on LUN 1.
Page 71: Configuration Guidelines
4.3 Configure and Install the DLT2500 Mini-Library This section describes how to configure and install the mini-library including: Configuration guidelines Connecting the SCSI signal cable to the mini-library The mini-library is factory set to SCSI ID 5, unless otherwise specified. 4.3.1 Configuration Guidelines Your system uses the SCSI ID to identify, or address, the mini-library.
Page 72: Run Post
Configuring and Operating the DLT2500 Mini-Library 4.4 Test the Installation This section tells you how to run the power-on self-test (POST) and what to do after POST. 4.4.1 Run POST To test the installation for the mini-library by running POST: 1.
Page 73: Operator Control Panel
4.5 Operator Control Panel The operator control panel (OCP) has 4 pushbuttons (Figure 4-5 and Table 4-1). Display Mode Figure 4-5 Mini-Library Operator Control Panel Configuring and Operating the DLT2500 Mini-Library MLO-012191 Select Load/ Unload DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem 4-9 Open...
Page 74 Configuring and Operating the DLT2500 Mini-Library Table 4-1 lists each button and its function. Table 4-1 Mini-Library Operator Control Panel Button Display Mode Puts the mini-library in Normal, Density Select, or SCSI ID Select mode. Select Load/Unload Open 4-10 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem Function Selects SCSI ID and density.
Page 75: Display Messages
Table 4-2 lists the display messages you can see during operation. Table 4-2 Display Messages Display Message The cartridge in the drive is write-protected by one of these methods: The write-protect switch on the cartridge is set to the write-protect position Host software write-protect qualifiers DRV ACT Tape is reading or writing...
Page 76 Configuring and Operating the DLT2500 Mini-Library Table 4-2 Display Messages (Cont’d) Display Message 4-12 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem Tells you Tape drive activity as follows: On steady means you selected a density from the front panel. Off (default) means density is selected automatically. Flashing means you are in density select mode.
Page 77: Key Lock
4.6 Key Lock The key lock on the front of the mini-library (Figure 4-3) enables or disables use of the operator control panel (OCP) (Figure 2-5). The key lock prevents unauthorized removal of the magazine or cartridges, providing a measure of data security. To unlock or enable the OCP, turn the key toward the opened lock icon next to the key lock.
Page 78: Selecting Density
Configuring and Operating the DLT2500 Mini-Library Issue a bus reset or turn the mini-library power off and then on again so the drive can recognize the new SCSI ID. 4.7 Selecting Density This section describes the mini-library's density select feature. __________________________Caution ___________________________ If a prerecorded tape and write from beginning of tape (BOT), all prerecorded data is lost.
Page 79: Front Panel, Density Select
4.7.1 Front Panel Density Select Mode To select density via the front panel: If a tape is loaded in the drive, the display shows the tape's pre-recorded density. The user can use the mini-library OCP at various times, not just after you load a tape.
Page 80: Programmable Host Selection Via Your Operating System
Configuring and Operating the DLT2500 Mini-Library Table 4-3 shows results. Table 4-3 Results of not Using or Using Density Select Mode You did not use Density Select mode You used Density Select mode and the actual tape density is the same as the density you selected You used Density Select mode and the actual tape density...
Page 81: Default Operating Modes
4.8 Default Operating Modes The mini-library operates in 4 modes: Normal Density Select SCSI ID Select Code Update 4.8.1 Normal Mode Normal mode is used by default after you turn on or reset the mini-library. The information displayed during this mode depends on the state of the mini-library. If the display says LDR ACT LDR RDY...
Page 82: Density Select Mode
Configuring and Operating the DLT2500 Mini-Library 4.8.2 Density Select Mode Density Select mode allows you to select drive density. If the display says DNS SEL DRV RDY DRV ACT DRV REW Switch Functions While in Density Select mode: When you press and release the Display Mode button once, the mini-library enters Normal mode.
Page 83: Scsi Id Select Mode
4.8.3 SCSI ID Select Mode SCSI ID Select mode allows you to select the SCSI ID for the tape drive and to enter Code Update mode. If you turn power off and then on again or reset the mini-library, the SCSI ID you chose reappears after being stored. If the display says SCSI ID SEL SCSI ID 0...
Page 84: Description Of The Tape Cartridge
Configuring and Operating the DLT2500 Mini-Library 4.9 Description of the Tape Cartridge The CompacTape III tape cartridge is a 4-inch, gray, plastic cartridge containing 1100 feet of 1/2 inch magnetic metal particle tape. 4.9.1 Cartridge Write-Protect Switch The tape cartridge has a Write-Protect switch to prevent accidental erasure of data. Before you load the tape cartridge into the drive, position the write-protect switch on the front of the cartridge (Figure 4-6).
Page 85: Data Protection
4.9.2 Data Protection If you move the cartridge write-protect switch to the left, and then load the tape, the WP (write-protect) message displays. Table 4-4 describes what happens to data protection when you move the write-protect switch before you load the cartridge. Table 4-4 Before Loading the Cartridge If you move the write-protect switch To the left, the tape is write-protected,...
Page 86: Description Of The Magazine
Configuring and Operating the DLT2500 Mini-Library 4.10 Description of the Magazine The front of the magazine has numbers 0 through 4 to indicate each slot number. __________________________NOTE ____________________________ Insert and remove all cartridges at the front of the magazine. ____________________________________________________________ Magazine Handle 4-22 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem Cartridge Slots...
Page 87: Inserting A Cartridge Into The Front Of The Magazine
4.10.1 Inserting a Cartridge into the Front of the Magazine Before cartridge insertion: Grasp the cartridge with the write-protect switch on the right side facing you. Set the cartridge's write-protect switch to the desired position. If you want to Write to the tape Write-protect the tape Configuring and Operating the DLT2500 Mini-Library Then...
Page 88: Inserting A Cartridge Into The Magazine
Configuring and Operating the DLT2500 Mini-Library Figure 4-8 Inserting a Cartridge into the Magazine To insert a cartridge into the magazine (Figure 4-8): Place the magazine on a flat surface with the slots facing you. Each slot is numbered to ensure you are inserting the cartridge correctly in the front of the magazine.
Page 89: Removing A Cartridge From The Magazine
Figure 4-9 Removing a Cartridge from the Magazine 4.10.2 Removing a Cartridge from the Magazine To remove a cartridge from the magazine (Figure 4-9): At the front of the magazine, number, press in on the cartridge until it stops and you hear a click. Then, release.
Page 90: Removing The Magazine From The Mini-Library
Configuring and Operating the DLT2500 Mini-Library __________________________NOTE ____________________________ Never apply labels to the top or bottom of tape cartridges. Doing so can cause cartridge jams in the mini-library. Use the space on the front of the cartridge for labels. ____________________________________________________________ 4.10.3 Removing the Magazine from the Mini-Library To remove the magazine from the mini-library, first ensure the OCP is enabled or unlocked via the key lock (Figure 4-3).
Page 91: Selecting A Cartridge From The Magazine
4.10.5 Selecting a Cartridge from the Magazine After a successful initialization, the mini-library automatically selects the first slot containing a cartridge and the Select button becomes active. To select a cartridge: press the Select button to advance to the next slot containing a cartridge.
Page 92: Unloading The Cartridge
Configuring and Operating the DLT2500 Mini-Library 4.10.7 Unloading the Cartridge __________________________CAUTION _________________________ Do not press the Load/Unload button until backup or other tape operations are stopped at the terminal. Doing so can result in operation failure and drive unavailability. ____________________________________________________________ You want to unload the cartridge from the drive The ERR LDR message...
Page 93: When To Use The Cleaning Tape Cartridge
4.11 When to Use the Cleaning Tape Cartridge Use Table 4-6 to determine when to use the cleaning cartridge. Table 4-6 When to Use the Cleaning Cartridge 1. The HC message displays 2. A data cartridge causes the HC message to display frequently 3.
Page 94 Configuring and Operating the DLT2500 Mini-Library 4-30 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsytem...
Page 95: In Thi Chapter
Configuring and Operating the DLT2700 5.1 In This Chapter Chapter 5 includes these main topics and sections: Topic Introduction to the Media Loader Configure the DLT2700 Mode Select Key Selecting Density Operator Control Panel (OCP) Power-On Process Slot Select, Load/Unload, and Eject Button Functions Magazine 5.2 Introduction to the Mini-Library...
Page 96: Configuring The Dlt2700
Configuring and Operating the DLT2700 Mini-Library Auto-loading is implemented as a side effect of the SCSI UNLOAD command. An unload is A media loader is specified present The next slot is empty, or the cartridge unloaded was for the last slot in the magazine 5.3 Configure the DLT2700 This section describes how to configure the DLT2700 including:...
Page 97: Configuration Guidelines
5.3.1 Configuration Guidelines Your system uses the SCSI ID to identify, or address, the DLT2700. Follow these guidelines when configuring the DLT2700 for your system: If you install the DLT2700 as The only SCSI device or one of multiple SCSI devices on the bus The last or only device on the SCSI 5.3.2 Disable Parity Checking To disable parity, see your service representative.
Page 98 Configuring and Operating the DLT2700 Mini-Library Figure 5-1 shows the location of the SCSI ID pushbutton switch. Figure 5-1 Changing the SCSI ID via the Pushbutton Switch SCSI Connector Voltage Selection Switch 5-4 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Wire Cable Clamps Pushbutton Switch Power Connector Power Switch...
Page 99: Mode Select Key
When you copy data to the tape, operations stop if one of the following happens: Storage capacity of the last tape cartridge is exceeded No tape cartridge is in the next sequential slot in the magazine To lock the DLT2700 subsystem into the enclosure and lock the receiver, set the Mode Select key to OCP Disabled.
Page 100: Dlt2700 Operator Control Panel
Configuring and Operating the DLT2700 Mini-Library Figure 5-2 shows the operator’s control panel. M O D E S E L E C T K E Y O C P D I S A B L E D S E R V I C E M O D E Figure 5-2 DLT2700 Operator Control Panel 5-6 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 101: Automatic Mode
When you copy data to the tape, operations stop if one of the following happens: Storage capacity of the last tape cartridge is exceeded No tape cartridge is in the next sequential slot in the magazine To lock the DLT2700 subsystem into its normal operating position in the enclosure, but leave the receiver unlocked, set the Mode Select key to Automatic mode.
Page 102: Service Mode
Configuring and Operating the DLT2700 Mini-Library __________________________Note _____________________________ During Manual mode, the cartridge returns to the magazine, but the current Slot Select indicator does not advance forward to the next available cartridge. ____________________________________________________________ 5.4.4 Service Mode Service mode allows for servicing procedures. SCSI ‘test unit ready’...
Page 103: Selecting Density
5.5 Selecting Density Section 5.5 describes the loader's density select feature. _________________________ Caution __________________________ If a prerecorded tape and write from beginning of tape (BOT), all prerecorded data is lost. This includes density changes, since they only occur when writing from BOT. ___________________________________________________________ Ways of Selecting Density Density selection is only available when you use a CompacTape III tape..
Page 104 Configuring and Operating the DLT2700 Mini-Library Density Select Example using a CompacTape III Tape If you have loaded a CompacTape III tape with a prerecorded 2.6 GB density and you use the Density Select button to select 10.0 GB density, the following should happen: The 2.6 light remains lit density has not changed yet and the steady light indicates recorded tape density The 10.0 light blinks density change is pending...
Page 105: Results Of Density
Table 5-1 shows the results of density selection using a CompacTape III tape. Table 5-1 Results of Density Selection using a CompacTape III tape Then You did not select the The lights show the actual density when the tape is Density Select button reading or writing.
Page 106: Operator Control Panel
Configuring and Operating the DLT2700 Mini-Library 5.6 Operator Control Panel The DLT2700 operator control panel (OCP) has 4 OCP pushbuttons and 23 lights (Table 5-2) used with the Mode Select key. See Section 5.4 for information on the Mode Select key and its functions. See Section 5.8 for more details on button and indicator operations.
Page 107 Table 5-2 DLT2700 Operator Control Panel (Cont’d) Button/Indicator Color Write Protected Orange light Tape In Use light Yellow Use Cleaning Tape Orange light Magazine Fault light Loader Fault light Current Slot lights Green Density Select Green DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 5-13 Configuring and Operating the DLT2700 Mini-Library Function When on, indicates the cartridge in the drive is...
Page 108 Configuring and Operating the DLT2700 Mini-Library Table 5-2 DLT2700 Operator Control Panel (Cont’d) Button/Indicator Color Density Override Yellow Yellow Yellow 10.0 Yellow Compress Yellow 5-14 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Function Indicates tape drive activity as follows: On steady you selected a density from the front panel.
Page 109: Power-On Process
5.7 Power-On Process _________________________ Caution __________________________ Before applying power, verify the DLT2700 is set (see the label on the mini-library rear panel) for the available ac supply voltage. ___________________________________________________________ Table 5-3 explains what happens during each phase of the DLT2700 operation. Table 5-3 Loader Power-On Self-Test Phase What Happens...
Page 110: Slot Select , Load /Unload
Configuring and Operating the DLT2700 Mini-Library Table 5-3 Loader Power-On Self-Test (cont’d) Phase What Happens If the subsystem magazine has a cartridge in slot 0, and no cartridge is in the drive, these lights should be on: = Power On = Eject = Load/Unload = Slot Select...
Page 111: Selecting A Cartridge
5.8 Slot Select, Load/Unload, and Eject Button Functions The Slot Select, Load/Unload, Eject, and Density Select buttons are OCP pushbuttons. They contain a green light and they are operable only when their corresponding lights are on. _________________________ Note _____________________________ The Load/Unload button has three functions: Load Unload Reset...
Page 112: Unloading The Cartridge
Configuring and Operating the DLT2700 Mini-Library 5.8.3 Unloading the Cartridge __________________________Caution ___________________________ Do not press the Load/Unload button until backup or other tape operations are stopped at the terminal. Doing so can result in operation failure and drive unavailability. __________________________Note _____________________________ The Load/Unload light must be on before you press the Load/Unload button to load or unload a cartridge.
Page 113: Opening The Receiver
5.8.4 Opening the Receiver The Eject button opens the receiver for insertion or removal of the magazine. The button is disabled when the Mode Select key is in the OCP Disabled position. The Eject button can also be used to unload a tape from the drive. When A cartridge is not in the drive...
Page 114: Magazine
Configuring and Operating the DLT2700 Mini-Library 5.9 Magazine The front of the magazine has numbers, 0 through 6, that indicate the number of the slot. __________________________Note _____________________________ Insert and remove all cartridges at the front of the magazine. ____________________________________________________________ 5.9.1 Inserting a Cartridge into the Front of the Magazine To simplify cartridge insertion: place the magazine on a flat surface with the slots facing you (Figure 5-4).
Page 115: Write -Protect Switch On A Cartridge
Configuring and Operating the DLT2700 Mini-Library W R I T E - P R O T E C T E D Figure 5-3 Write-Protect Switch on a Cartridge DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 5-21 O R A N G E I N D I C A T O R W R I T E - P R O T E C T S W I T C H...
Page 116: Inserting A Cartridge Into The Magazine
Configuring and Operating the DLT2700 Mini-Library B A C K O F M A G A Z I N E N O T E : P u s h t a p e i n u n t i l a c l i c k i s h e a r d Figure 5-4 Inserting a Cartridge into the Magazine 5-22 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem F R O N T O F...
Page 117: Removing A Cartridge From The Magazine
5.9.2 Removing a Cartridge from the Magazine To remove a cartridge from the magazine: at the front of the magazine press in on the cartridge (Figure 5-5) until it stops and you hear a click. Then, release. The slot has a spring-release action.
Page 118: Removing A Cartridge From The Front Of The Magazine
Configuring and Operating the DLT2700 Mini-Library B A C K O F M A G A Z I N E Figure 5-5 Removing a Cartridge from the Front of the Magazine 5-24 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem N O T E : P u s h t a p e i n u n t i l a c l i c k i s h e a r d F R O N T O F M A G A Z I N E...
Page 119: Receiver Opened
Configuring and Operating the DLT2700 Mini-Library Z K O - 3 1 3 5 - 0 4 - D G Figure 5-6 Receiver Opened DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 5-25...
Page 120 Configuring and Operating the DLT2700 Mini-Library 5-26 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 121: In Thi Chapter
Troubleshooting Guide for the DLT2500/DLT2700 Mini-Library 6.1 In This Chapter Chapter 6 includes the following main topics and sections: Topic Conditions Necessary for Button Operation Backup Operation Failure Avoiding Basic Problems Error Conditions : DLT2500 Power Problems 6.2 Conditions Necessary for Button Operation Be sure to review information in the previous chapters to ensure you are correctly operating the DLT2500/DLT2700 mini-library.
Page 122 Troubleshooting Guide for the DLT2500/DLT2700 Mini-Library __________________________Note _____________________________ Do not press the Load/Unload button to abort any function of the DLT2500/DLT2700 subsystem. Press [Ctrl/Y] or [Ctrl/C] instead. ____________________________________________________________ See Chapter 4 for more information on the functions of the DLT2500 OCP buttons. Table 6-1 DLT2500 OCP Button Conditions If you want to Select another slot in...
Page 123: Backup Operation Failure
See Chapter 5 for more information on the functions of the DLT2700 OCP buttons. Table 6-2 DLT2700 OCP Button Conditions If you want to Select another slot in the magazine Load the selected cartridge into the tape drive Return the selected cartridge to its original slot in the magazine Clear a magazine or loader...
Page 124: Avoiding Basic Problems
Troubleshooting Guide for the DLT2500/DLT2700 Mini-Library 6.4 Avoiding Basic Problems Follow these guidelines when you operate the DLT2500/DLT2700 subsystem to avoid basic problems: Use CompacTape III cartridges. Check the tape leader in the cartridge by lifting the cartridge latch that opens the door to expose the leader.
Page 125: Dlt2500 Error Conditions
6.5 DLT2500 Error Conditions Error indications fall into these main categories: Magazine Error Loader Error Drive Error Controller Error Unknown Error 6.5.1 DLT2500 Magazine Error The ERR MAG message tells you the status of cartridges reported by the loader and drive is inconsistent.
Page 126: Dlt2500 Unknown Error Description
Troubleshooting Guide for the DLT2500/DLT2700 Mini-Library 6.5.5 DLT2500 Unknown Error Description The ERR UNK message tells you the mini-library detected an error of unknown origin. In some unknown errors, the mini-library retries the error three times before showing failure. 6.5.5.1 DLT2500 Clearing a Loader, Drive, Controller, or Unknown Error When you press the Load/Unload button, the mini-library attempts to clear the error.
Page 127 6.6.1.1 Detecting Cases 1, 2, and 3 The user can tell these cases have occurred when the Magazine Fault light and slot lights 0 and 5 are on. _________________________ Caution __________________________ Never remove a cartridge from the magazine by moving the metal tab in front of the cartridge.
Page 128: Dlt2700 Loader Fault Description
Troubleshooting Guide for the DLT2500/DLT2700 Mini-Library __________________________Note _____________________________ Slot 0 lights in all error conditions to indicate an error occurred. It is not a Slot Select indicator in this case. ____________________________________________________________ After you clear the error try loading and unloading cartridges to verify operation. 6.6.2 DLT2700 Loader Fault Description A loader fault indicates the DLT2700 detected a fatal error in the loader transfer assembly or in the tape drive.
Page 129: In Thi Chapter
Firmware Update (From Tape) 7.1 In This Chapter Chapter 7 includes the following main topics and sections: Topic DLT2000 Firmware Update Overview Creating a "Firmware Update Tape" Firmware Update Procedure 7.2 DLT2000 Firmware Update Overview Through the use of the front panel the DLT2000 Cartridge Tape Subsystem family can automatically update the controller firmware directly from a tape containing the appropriate information.
Page 130: Before Doing The Procedure
Firmware Update (From Tape) 7.2.1 Before Doing the Procedure Before doing the procedure, remember: __________________________Caution ___________________________ During the firmware update, when the new image is actually being programmed into the FLASH EEPROMs, a power fail (but not BUS RESET) causes the controller module to be unusable. When doing a firmware update, take reasonable precautions to prevent a power fail.
Page 131: C Onnectors
Front Bezel Left Side Right Side Figure 7-1 DLT2000 Subsystem Connectors TRM PWR/TRM ENB Connector SCSI ID Connector Loader Connector Firmware Update (From Tape) DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 7-3 Front Bezel ZKO−1217−17−RGS...
Page 132: Creating A Firmware Update Tape
Firmware Update (From Tape) 2. Ensure the TRM PWR/TRM ENB jumpers are in position (Figure 7-2, number Figure 7-2 Jumper Settings for TRM PWR/TRM ENB Connector No Term Power/Disable Active Termination No Term Power/Enable Active Termination From the time the tape is inserted and the drive handle is closed, updating the firmware takes from 2 to 3 minutes.
Page 133: Firmware Update Procedure
7.4 Firmware Update Procedure Section 7.4 describes the procedure for updating the firmware (code) of the DLT2000 subsystem controller. The update is done from a cartridge that stores the firmware image. Firmware update from the host is also supported. See the section on the SCSI WRITE BUFFER command in Chapter 8 for details.
Page 134 Firmware Update (From Tape) If the Write Protect indicator does not blink, check that: 1. POST passed 2. The drive is unloaded 3. The drive handle is in the down position Then, release the Unload button and press the button again within 4 seconds.
Page 135 4. While the drive code goes through the update, the Write Protect and Tape in Use indicators flash alternately. 5. When the drive code update is complete, the drive resets, and goes through Power-On Self-Test (POST). The process waits until the tape is reloaded at beginning of tape (BOT).
Page 136 Firmware Update (From Tape) 7.4.1.1 Interpreting the Results (DLT2000 Code Update) Two possible results can occur: The firmware update cartridge is unloaded: this means a successful update. On the DLT2000, the media is placed into the cartridge, the door is unlocked, and the green Operate Handle indicator is turned on.
Page 137 Table 7-1 gives additional details. Table 7-1 Results (DLT2000 Code Update) If... The image is valid 1. The tape is NOT a valid firmware update tape. 2. The tape does not contain a valid image The tape contains a valid image, but for some reason the reprogramming flash memory fails...
Page 138: Updating The Firmware On The Dlt2500 (Drive And Loader Configuration)
Firmware Update (From Tape) 7.4.2 Updating the Firmware on the DLT2500 (Drive and Loader Configuration) Get or make a CompacTape with the code image of the specified revision level copied to it. Put the mini-library into code update mode. To do this: With the LDR RDY message displaying, press the OCP Open button to open the door and remove the magazine.
Page 139 During a DLT2500 code update, the drive: Automatically reads the tape. _________________________ NOTE ____________________________ Calibration and directory processing cause the tape to move for a few minutes before data is actually read. ___________________________________________________________ Examines the data. Verifies the data is a valid DLT2500 code image. When the drive code update completes, the controller's flash EEPROM memory is updated with the new code image.
Page 140 Firmware Update (From Tape) Table 7-2 Results (DLT2500 Code Update) Cont'd This means The code update cartridge contains a corrupted image file or the file is built improperly. 7-12 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem And you should Press the Unload button to unload the tape cartridge from the drive.
Page 141 Table 7-2 Results (DLT2500 Code Update) Cont'd This means The tape cartridge with the valid update image is not readable. A power failure occurs during the code update. The drive may be unusable. DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem 7-13 Firmware Update (From Tape) And you should Press the Unload button to unload the tape cartridge...
Page 142: Updating The Firmware On The Dlt2700 (Drive And Loader Configuration)
Firmware Update (From Tape) Table 7-2 Results (DLT2500 Code Update) Cont'd This means A controller failure occurs. The drive is most likely unusable and needs to be replaced. 7.4.3 Updating the Firmware on the DLT2700 (Drive and Loader Configuration) 1. Get or make a CompacTape with the firmware image of the desired revision level copied to it.
Page 143 e. The Tape in Use and the Write Protect indicators blink, showing the subsystem recognizes the firmware update mode has been selected. If selecting firmware update mode is not successful (for example, because of not pushing the Unload button properly the second time), the Write Protect indicator should stop blinking within several seconds.
Page 144 Firmware Update (From Tape) g. When the drive code update is complete, the drive resets, and goes through Power-On Self-Test (POST). The process waits until the tape is reloaded at beginning of tape (BOT). h. If the firmware image is valid, the controller's flash EEPROM memory is automatically updated with the new firmware image.
Page 145 Table 7-3 gives additional details. Table 7-3 Results (DLT2700 Code Update) The image is valid The tape is NOT a valid firmware update tape The tape contains a valid image, but for some reason reprogramming of Flash memory fails _________________________ Caution __________________________ Never turn off power if you think the firmware is being updated.
Page 146 Firmware Update (From Tape) 7-18 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 147: Chapter 8: Dlt2000 Scsi Interface
Refer to Chapter 2 for details. _________________________ Note _____________________________ The SCSI specification referrers to mini-libraries as “medium changers” where as Quantum uses the term “min-libraries” throughout this manual. ___________________________________________________________ The DLT2000 supports a maximum block size of 1 Byte to 16 MBytes.
Page 148: Initiator/Target Operations
DLT2000 SCSI Interface 8.2.2 Initiator/Target Operation The DLT2000 does not act as an initiator on the SCSI bus. Therefore, the device will not do any of the following: Generate unsolicited interrupts to the host Initiate its own SCSI commands Assert bus reset 8.2.3 SCSI IDs and Logical Unit Numbers (LUNs) The DLT2000 with optional medium changer has two logical units.
Page 149: Unit Attention Condition
8.2.4 Unit Attention Condition Queued Unit Attentions are implemented on this device, and are maintained separately for each valid LUN for each Initiator. Unit Attentions will be created in the following circumstances: Power on BUS Reset Bus Device Reset message When the media may have changed asynchronously Another initiator changed the Mode Parameters A firmware (microcode) update has completed...
Page 150: Data Cache And Tape Write Interaction
DLT2000 SCSI Interface 8.2.6 Data Cache and Tape Write Interaction The DLT2000 contains a data cache that buffers blocks (records) until they are written. This section defines specific times that blocks shall be written to tape. A Mode Select parameter allows the data cache to be disabled (unbuffered mode). In this mode, every WRITE command will cause the data to be written to the media before the STATUS byte and the COMMAND COMPLETE message is returned to the host.
Page 151: Attention Signal Response
8.2.9 ATTENTION Signal Response The DLT2000 will respond to an ATN condition at least at every phase transition, as long as the initiator sets the ATN bit before the target deasserts the REQ for the last byte of the previous phase. Generally ATN will be recognized immediately by the DLT2000, and it will change the bus phase to Message Out.
Page 152: Load /Unloadf
DLT2000 SCSI Interface ___________________Note _____________________________ In contrast to the BUSY status condition, the DRIVE NOT READY Sense Key is returned as part of the Sense data following a REQUEST SENSE command and indicates that a media access command has been issued and the media is not ready to be accessed (for example, the media is not installed, the media has been unloaded, the drive is currently initializing the media to prepare it for access, and so forth.)
Page 153: Bus Free
8.2.11 BUS FREE There are several situations when the device might or will go to BUS FREE unexpectedly, as defined in the SCSI-2 standard (see sections 6.1.1 and 6.3): An internal hardware or firmware fault that makes it unsafe for the device to continue operation without a full reset (similar to a power-up reset).
Page 154: Scsi Message System
DLT2000 SCSI Interface 8.3 SCSI Message System The message system allows communication between an initiator and a target for the purpose of physical path management. To support certain SCSI-1 initiators, an Identify message is not required by the DLT2000. If a message is sent by the initiator after the SELECTION phase, it should be an IDENTIFY, ABORT, or BUS DEVICE RESET message.
Page 155 DLT2000 SCSI Interface ABORT (06h) This message is sent from the initiator to the target to clear, on the selected unit, the current I/O process. Buffered (cached) write operations will be completed if possible. The target goes directly to the BUS FREE phase after successful receipt of this message.
Page 156: Extended Message Format
DLT2000 SCSI Interface When received from an initiator, the tape drive enters the message in phase and return MESSAGE REJECT. EXTENDED MESSAGE (01h) This is sent as the first byte of a multiple-byte message (> 2 bytes) by either initiator or target.
Page 157 IDENTIFY (80h-FFh) These messages are sent either by the initiator or by the target to establish (or reestablish) the physical connection path between an initiator and target for a particular logical unit. The message byte consists of the following bits: Bit 7: Always set to one.
Page 158 DLT2000 SCSI Interface The target's response to this message shall be to switch to the MESSAGE IN phase and re-send from the beginning all the bytes of the message which generated the original MESSAGE PARITY ERROR message. MESSAGE REJECT (07h) This message is sent from the initiator or target to indicate that the last message received was inappropriate or has not been implemented.
Page 159 Synchronous Data Transfer Request (SDTR) This extended message allows the target and initiator to agree on the values of the parameters relevant to synchronous transfers. DLT2000 will not initiate the Synchronous Data Transfer Request message, but relies on the Initiator to do so. The SDTR message has the following format: Byte 0 Extended Message Identifier −...
Page 160: Tape Drive Scsi Commands
DLT2000 SCSI Interface 8.4 Tape Drive SCSI Commands 8.4.1 Control Byte - Flag and Link Bits The control byte of the Command Descriptor Block contains the Flag and Link bits. Use of these bits is entirely initiator dependent. Setting the Link bit provides an automatic link to the next command, bypassing the usual ARBITRATION, SELECTION, and MESSAGE OUT phases which would normally occur between commands.
Page 161: Summary Of Supported Sequential-Access Device Commands
8.4.2 Summary of Supported Sequential-Access Device Commands The following table shows what SCSI commands are supported by the DLT2000 tape drive. Table 8-2 DLT2000 Supported SCSI Commands Opcode Command ERASE INQUIRY LOAD-UNLOAD LOCATE LOG SELECT LOG SENSE MODE SELECT 1A /5A MODE SENSE PREVENT/ALLOW MEDIUM REMOVAL READ...
Page 162: Erase (19H)
DLT2000 SCSI Interface 8.4.3 ERASE (19h) Logical Unit Number Byte Unused ERASE causes data on the tape to be erased. Any write data currently held in buffer memory and not written to tape yet is flushed to tape before the ERASE is executed. Immed If the Immediate bit is set to zero, the target will not return status until the selected operation has completed.
Page 163: Inquiry (12H)
8.4.4 INQUIRY (12h) Logical Unit Number Byte Unused INQUIRY tells the drive to send information regarding the device's parameters to the initiator. The INQUIRY command executes normally even if the specified LUN is not attached. INQUIRY returns a Check Condition status only when the target cannot return the requested Inquiry data.
Page 164: Drive Inquiry Response
Device Type Modifier ECMA Version ANSI-Approved Version TrmIOP Reserved Response Data Format Additional Length (33h) Reserved Reserved WBus32 WBus16 Sync Linke Vendor ID = “Quantum “ Product ID = “DLT2000 Product Revision Level = “hhss” Vendor Unique bytes RSVD CmdQue SftRe “...
Page 165 Other Inquiry Data Fields The rest of the fields in the Inquiry Response are used as follows: Byte 1 RMB - The Removable Medium bit is one. Device-Type Modifier - Set to 0. Byte 2: IOS Version - Set to 0 ECMA Version - Set to 0 ANSI Approved Version - Set to 02h, indicating compliance with SCSI-2 Byte 3:...
Page 166 DLT2000 SCSI Interface Product Revision Level - This field contains four bytes of ASCII data, which define the product's software Revision Levels. The first tow bytes are the version number of servo code. in the DLT2000 products, this firmware is located in a PROM and is not field updateable.
Page 167: Vendor Unique Inquiry
8.4.4.2 Vendor Unique Inquiry Data The following information can be used to precisely identify the revision of subsystem components. Byte Figure 8-6 INQUIRY Vendor Unique Bytes Definition Vendor Specific Inquiry Bytes To more precisely identify the product and the installed firmware, additional information is available.
Page 168: Vital Product Data
DLT2000 SCSI Interface Sub-Personality Further differentiates product versions, currently set to a 1. Loader Present Nonzero if a media loader is present. Library Present Nonzero if a library is attached. Module Revision A four byte ASCII string represents the revision of the ECM module. 8.4.4.3 Vital Product Data Pages The following figures show the information in the supported Vital Product Data Pages.
Page 169: Unit Serial Number Page
Peripheral Qualifier Byte 4 - 13 Figure 8-8 Unit Serial Number page Serial Number The serial number is the serial number of the printed circuit card mounted on the bottom of the DLT2000. It can be found on the bar code label. The serial number is returned in ASCII.
Page 170: Media Loader Inquiry Response
DLT2000 SCSI Interface 8.4.4.4 Media Loader Inquiry Response The DLT2000 controller generates INQUIRY Data on the Medium Changer LUN that is very similar to that of the tape drive LUN. The key differences are: Peripheral Device Type is set to "8" for SCSI-2 Medium Changer Product ID bytes are set to DLT2500 or DLT2700 for 5 or 7 cartridge loader, respectively.
Page 171: Load-Unload Cdb
8.4.5 LOAD-UNLOAD (1Bh) Logical Unit Number Byte Unused Figure 8-10 LOAD-UNLOAD CDB LOAD-UNLOAD tells the target to load or unload the media in the tape cartridge. If no cartridge is in the drive, both LOAD and UNLOAD will return a CHECK CONDITION status with a NOT READY sense key set.
Page 172 DLT2000 SCSI Interface EEROM parameters ENALDRAUTOLD and DISLDRAUTOLDMC can be modified to enable/disable the sequential loading feature (Table 8-3). A media loader does not affect the device's processing of the LOAD flavor of the LOAD-UNLOAD command. The command specific bits are used as follows: Immed - If this bit is set, status is returned as soon as the operation is started.
Page 173: Locate Cdb
8.4.6 LOCATE (2Bh) Logical Unit Number Byte (MSB) Unused The LOCATE command is used to do high-speed positioning to the specified block address. Average positioning time is about 45 seconds; maximum time is under 90 seconds. The READ POSITION command can be used to obtain the block address, when Writing, where particular blocks of data (for example, a data file) are about to be written.
Page 174: Log Select Cdb
DLT2000 SCSI Interface 8.4.7 LOG SELECT (4Ch) Logical Unit Number (0) Byte (MSB) Unused Figure 8-12 LOG SELECT CDB LOG SELECT allows the host to manage statistical information maintained by the device about its own hardware or the installed media. The description should be read in conjunction with the description of the LOG SENSE command which follows it, to provide the reader with information about log page format, parameters, and supported pages.
Page 175 Figure 8-13 LOG Page Control Definitions All types of parameter values are changeable through Log Select. When the PC field is set to 00b or 01b and the Parameter List Length is zero, the command is terminated with a CHECK CONDITION Status, with Sense Key of ILLEGAL REQUEST, and ASC of INVALID FIELD IN CDB.
Page 176: Operation Of Log Select
DLT2000 SCSI Interface 8.4.7.1 Operation of LOG SELECT The purpose of the LOG SELECT command is to allow the initiator to modify and initialize parameters within the logs supported by the device. There are two ways to initialize the log parameters. First, set the PCR bit in the LOG SELECT CDB;...
Page 177 LOG SELECT PAGE FORMAT Each Log page will begin with a 4-byte header followed by N log parameter blocks (one block for each parameter code). Each block, except for parameter code 05h, will be 8 bytes. The parameter block for code 05h will be 12 bytes. Log Page Header Reserved Byte...
Page 178 DLT2000 SCSI Interface Parameter Code 8000h Figure 8-16 Parameter Codes Supported Parameter codes 00h, 01h, and 04h will always return a value of zero. __________________________Note _____________________________ Parameter value for code 05h will be 8 bytes; the parameter length will be set to 8.
Page 179 LP–List Parameter: This bit should always be set to 0 to indicate parameter codes are treated as data counters. Error Detection Summary in Log Select Pages The host should issue a LOG SENSE command to initialize host software which allows: Correct determination of the pages the drive uses Determination of the parameter codes and length of each parameter The following conditions constitute errors in the parameter block that will cause the...
Page 180: Log Sense (4Dh)
DLT2000 SCSI Interface 8.4.8 LOG SENSE (4Dh) Logical Unit Number (0) Byte (MSB) (MSB) Unused Figure 8-17 LOG SENSED CDB LOG SENSE allows the host to retrieve statistical information maintained by the device about its own hardware or the installed media. It is a complementary command to LOG SELECT.
Page 181 status. The sense key is set to ILLEGAL REQUEST and the additional sense code is set to INVALID FIELD IN CDB. If the target does not support a parameter code within this page then it will not return any data associated with this parameter. Saving log parameters is not supported and shall be always zero.
Page 182 DLT2000 SCSI Interface Page Code Figure 8-19 LOG SENSE Pages Supported Parameter Pointer The Parameter Pointer field allows the host to specify at which parameter within a log page the requested data should begin. For example, if a page supports parameters 0 through 5, and the Parameter Pointer field contains 3, then only parameters 3, 4, and 5 are returned to the initiator.
Page 183: F Ormat
8.4.8.1 Supported Pages Log Page (Page 0) When page 0 is requested, the 4-byte page header is returned followed by the pages supported in ascending order, one byte for each. Reserved Byte (MSB) Figure 8-20 Supported Pages Page Format Page Code (00h) Reserved Page LENGTH (05H) DLT2000/DLT2700 Cartridge Tape Subsystem 8-37...
Page 184: Sense Page Format
DLT2000 SCSI Interface 8.4.8.2 Read/Write Error Log Page (Page 2 and 3) Each Log page will begin with a 4-byte header followed by n number of log parameter blocks, each block of 8 bytes except for parameter code 5h. The log parameter block for the Parameter total bytes processed (5h) will be 12 bytes, since the parameter value is 8 bytes long.
Page 185 Parameter Code The following parameter codes are supported for the read/write error counter pages. Parameter Code Errors corrected with substantial delays Errors corrected with possible delays Total rewrites or rereads Total errors corrected Total times correction algorithm processed Total bytes processed Total uncorrected errors 8000h Vendor Unique...
Page 186 DLT2000 SCSI Interface generated for all initiators. The sense key will be set to UNIT ATTENTION, ASC will be set to LOG EXCEPTION and ASCQ will be set to THRESHOLD CONDITION MET. If the RLEC bit in control mode page is zero then, UNIT ATTENTION will not be generated.
Page 187: Last N Error Events Page (07H)
8.4.8.3 Last n Error Events Page (07h) This page returns one parameter at a time that consists of the ASCII text for the specified event log. The Parameter Number field in the CDB specifies the log event to return. The log events EEROM are numbered 0 to 255, after which the number wraps back to 0, and only a limited number of events are stored at a given time (up to 14).
Page 188: Ratio Page Header
DLT2000 SCSI Interface 8.4.8.4 Read/Write Compression Ratio Page Format (32h) The Read/Write Compression Ratio page begins with a 4-byte header followed by the log parameter blocks of 6 or 8 bytes, depending on the parameter code selected. Parameter Codes The following parameter codes are supported for the Read/Write Compression Ratio page.
Page 189: Ratio Log Sense Page Format
Parameter Block for Parameter Codes 00 and 01 (MSB) Byte (MSB) Figure 8-27 Read/Write Compression Ratio LOG SENSE Page Format Parameter Control Byte DU–Disable Update: This bit is always zero. DS–Disable Save: Saving parameters is not supported; this bit will always be set to TSD–Target Save Disable: Saving parameters is not supported;...
Page 190: Log Sense Page Format
DLT2000 SCSI Interface Parameter Block for Parameter Codes 02 through 09 (MSB) (MSB) Byte Figure 8-28 Read/Write Bytes Transferred LOG SENSE Page Format Parameter Control Byte DU–Disable Update: This bit is always zero. DS–Disable Save: Saving parameters is not supported; this bit will always be set to TSD–Target Save Disable: Saving parameters is not supported;...
Page 191 DLT2000 SCSI Interface Parameter codes 04 and 05 report the counts of bytes transferred from the tape to the buffer. Parameter code 04 reports the number of full megabytes transferred. Parameter code 05 reports the number of bytes less than a full megabyte that has been transferred. Multiplying the counter returned for parameter 04 by 1,048,576 and then adding the counter value returned for parameter 05 will give the actual total bytes transferred from tape to buffer.
Page 192: Mode Select (15H)
DLT2000 SCSI Interface 8.4.9 MODE SELECT (15h) Logical Unit Number Byte Unused (00) Figure 8-29 MODE SELECT CDB MODE SELECT enables the host to configure the device. Implementing MODE SELECT and MODE SENSE requires a certain amount of handshaking between the host and the drive.
Page 193: Mode Select Parameter List
8.4.9.1 MODE SELECT Parameter List The MODE SELECT parameter list shown below, contains a 4-byte header, followed by one 8-byte block descriptor. Byte 1 2 WP Block Descriptor 1 (MSB) Byte 4 Reserved 5 (MSB) Page Descriptor 0 PS (0) Byte 1 Figure 8-30 MODE SELECT Parameter List Media Type...
Page 194: Buffered Mode
DLT2000 SCSI Interface Buffered Mode The drive will implement Immediate Reporting on WRITE commands through Buffered mode. If the field is zero, then the drive does not report a GOOD status on WRITE commands until the data blocks are actually written to tape. If the Buffered Mode field is one, then the drive reports GOOD status on WRITE commands as soon as the data block has been transferred to the buffer.
Page 195 80h - 62500 bpi, 64 track pairs, serial cart tape - 10 GB (CompacTape III) (Without compression) 81h - 62500 bpi, 64 track pairs, serial cart tape -20 GB (CompacTape III) (With compression) _________________________ Note _____________________________ If EEROM parameter EnaThirdPtyDens is set, which is true by default, Mode Select command does not reject non-supported density code.
Page 196: Upported
DLT2000 SCSI Interface 8.4.9.2 MODE SELECT Pages Following the Block Descriptor are the MODE SELECT pages, which set the device parameters. Each page has a 2-byte header which identifies the page code and indicates the number of bytes in that page. The supported Page Codes are as follows: Page Code Figure 8-31 MODE SELECT Pages Supported...
Page 197: Control Mode Page (0Ah)
8.4.9.3 Control Mode Page (0Ah) The control mode page provides controls over several features such as tagged queuing, extended contingent allegiance, asynchronous event notification, and error logging. RSVD Byte Queue Algorithm Modifier EECA (MSB) Figure 8-32 Control Mode Page (0Ah) A report log exception condition (RLEC) bit of one specifies the target shall report log exception conditions.
Page 198 DLT2000 SCSI Interface The RLEC bit indicates whether the DLT2000 should return Check Condition status with the sense key set to Unit Attention (6h) when one of its write and read error counters of the log pages reaches a specified threshold as follows: (See LOG SELECT command section on how to change the threshold.) 0 - Do not return Unit Attention when a threshold condition is met 1 - Return Unit Attention when a threshold condition is met...
Page 199: Data Compression Page (0Fh)
8.4.9.4 Data Compression Page (0Fh) The Data Compression Page specifies parameters for the control of data compression. This page allows you to turn DLT2000 compressed format on and off independently of the tape's position and allows you to enable or disable decompression of DLT2000 compressed data during write operations.
Page 200 DLT2000 SCSI Interface DDE (Data Decompression Enable) When the DLT2000 reads compressed data from tape, it automatically decompresses the data before sending it to the initiator. Data compression is always enabled, so this bit must be set to 1 (enable data decompression). RED (Report Exception on Decompression) The DLT2000 does not report exceptions on decompression (boundaries between compressed and uncompressed data).
Page 201: Page Format
8.4.9.5 Device Configuration Page (10h) The drive supports the Device Configuration Page which has the following format: PS (0) Byte (MSB) EOD Defined (MSB) Figure 8-34 Device Configuration Page Format In this page, only the Write Delay Time and Select Data Compression Algorithm parameters are changeable.
Page 202 DLT2000 SCSI Interface Active Partition Only partition 0 is supported. Setting this field to any other value will be rejected by the drive with a CHECK CONDITION status and the ILLEGAL REQUEST sense key set. Write Buffer Full Ratio and Read Buffer Empty Ratio These indicate how full/empty the buffer memory should be before restarting the writing/reading of the media.
Page 203 DLT2000 SCSI Interface SEW and Buffer Size At Early Warning The Synchronize at Early Warning bit is set to 1. Buffer Size at EW is not supported and must be zero. Select Data Compression Algorithm One enables data compression; a zero disables it. The front panel setting will override what is specified in the MODE SELECT, but no error will result.
Page 204: Page Format
DLT2000 SCSI Interface 8.4.9.6 Disconnect/Reconnect Page (02h) The drive shall support the Disconnect/Reconnect Page which has the following format: PS (0) Byte (MSB) (MSB) (MSB) (MSB) Figure 8-35 Disconnect/Reconnect Page Format In this page, only the Maximum Burst Size parameter is changeable. The following parameters in this page are supported: Maximum Burst Size This value specifies the maximum amount of data that will be transferred without...
Page 205: C Ontrol
Data Transfer Disconnect Control (DTDC) The DTDC field defines further restrictions on when a disconnect is permitted. DTDC Description Data transfer disconnect control is not used. Disconnect is controlled by the other fields in this page A target does not attempt to disconnect once the data transfer of a command has started until all data the command is to transfer has been transferred.
Page 206: Format:
DLT2000 SCSI Interface 8.4.9.7 Medium Partition Page (11h) The drive supports the Medium Partitions Parameter Page, which has the following format: PS (0) Byte Figure 8-37 Medium Partition Page Format Maximum Additional Partitions No additional partitions are supported, this field must be zero. Additional Partitions Defined The field specifies the number of additional partitions to be defined for the tape based on the settings of the SDP and IDP bits.
Page 207: Format:
8.4.9.8 Read/Write Error Recovery Page (01h) The drive shall support the Error Recovery Page which has the following format: PS (0) rsvd rsvd Byte Figure 8-38 Error Recovery Page Format In this page, only the Post Error (PER) flag parameter is changeable. If PER is set, Check Conditions will be created, with Sense Key of Recovered Error, and VU Sense Data detailing the cause.
Page 208 DLT2000 SCSI Interface Read Retry Count This field reports the maximum number of rereads that are done before declaring an unrecoverable error. Write Retry Count This field reports the maximum number of overwrite retries that will be performed before declaring an unrecoverable error. 8-62 DLT2000/DLT2700 Cartridge Tape Subsystem...
Page 209: Page Format
8.4.9.9 EEROM Vendor Unique Page (3Eh) The drive shall support a vendor unique page, which you can use to modify savable parameters. Only one savable parameter may be changed per Mode Select command. It has the following format: ASCII String of parameter name and value Figure 8-39 EEROM Vendor Unique Page Format The ASCII string has a parameter name, followed by one or more space characters, a parameter value, and an ASCII line feed or null character.
Page 210: Eerom
DLT2000 SCSI Interface Table 8-3 EEROM Vendor Unique Page Parameters Name Value Rep. VENDORID ASCII PRODUCTID ASCII FORCEDENSITY ASCII Decimal FORCECOMP ASCII Binary DEFAULTCOMPON ASCII Binary DEFFIXEDBLKLEN ASCII Decimal ENBINQMEDCHGR ASCII Binary LOADERLUN ASCII Decimal REWINDONRESET ASCII Binary ENALDRAUTOLD ASCII Binary Parameter setting, if set, remains after the firmware update.
Page 211 Table 8-3 EEROM Vendor Unique Page Parameters (cont’d) Name Value Rep. Default Skip DISLDRAUTOLDMC ASCII Binary ENAPARERRRETRY ASCII Binary ENAMODEPG22 ASCII Binary NODISCONFXDBLK ASCII Binary FOURLAMPMODEL ASCII Binary PROTECTDIRONWP ASCII Binary ENACLNGLTRPT ASCII Binary LONGXPORTPAGE ASCII Binary FORCEEEREBUILD ASCII Binary SCSIINQVS ASCII Binary DEFSEW...
Page 212 DLT2000 SCSI Interface Table 8-3 EEROM Vendor Unique Page Parameters (cont’d) Name Value Rep. REPORTRCVDPERRS ASCII Binary ENATHIRDPTYDENS ASCII Binary FORCEREADSILI ASCII Binary CACHETMS ASCII Decimal LDRCYCLERESET ASCII Binary ENAREPDECOMP ASCII Binary 8-66 DLT2000/DLT2700 Cartridge Tape Subsystem Default Skip Length Usage Default 1 (Bytes)
Page 213: Page Example
This is an example of an EEROM vendor unique page that will modify the VENDORID parameter to "XXXYY." Page Length (0FH) "v" "e" "n" "d" "o" "r" "i" "d" " " "X" "X" "X" "Y" "Y" <LF> Figure 8-40 EEROM Vendor Unique Page Example 1 DLT2000 SCSI Interface Page Code (3EH) (76H)
Page 214: Page Example
DLT2000 SCSI Interface This is an example of an EEROM vendor unique page that will modify the FORCEDENSITY parameter to 1. Figure 8-41 EEROM Vendor Unique Page Example 2 8-68 DLT2000/DLT2700 Cartridge Tape Subsystem Page Code (3EH) Page Length (0FH) "F"...
Page 215: Mode Select Changeable Parameters
8.4.9.10 MODE SELECT Changeable Parameters The following table lists the changeable mode parameters and their minimum and maximum values allowed. See the previous definitions for the units that are used. Parameter rounding is supported for all parameters except the block descriptor length. Table 8-4 Changeable Mode Parameters Page: Parameter Header: Buffered Mode, Device Specific Byte...
Page 216: Mode Sense (1Ah /5Ah)
DLT2000 SCSI Interface 8.4.10 MODE SENSE (1Ah /5Ah) MODE SENSE allows the drive to report its media, current or changeable configuration parameters to the host. It is a complementary command to MODE SELECT. Logical Unit Number Byte Unused Figure 8-42 MODE SENSE CDB (6) The DLT2000 products also support the 10-byte MODE SENSE, which is required to request the VU EEROM Parameter page because of the large amount of data that needs to be passed back.
Page 217: D Efinition
Operation Code (5Ah) Logical Unit Number Byte (MSB) Unused Figure 8-43 MODE SENSE CDB (10) If the Disable Block Descriptors bit is zero, the device returns the Block Descriptor Data. If set, then the Block Descriptor information is not returned. The Page Control field indicates the type of page parameter values to be returned to the host as shown in the following table: Report Current Values...
Page 218 DLT2000 SCSI Interface Allocation Length The Allocation Length field specifies the number of bytes that the host has allocated for returned MODE SENSE data. An Allocation Length of zero means that the drive will return no MODE SENSE data. This is not considered an error and GOOD status is returned.
Page 219: Header
8.4.10.1 MODE SENSE Parameter List The MODE SENSE (6) data contains a 4-byte header followed by one 8-byte block descriptor, followed by zero or more variable length pages, depending on the Page Code and the Allocation Length. Byte 0 2 WP Figure 8-45 MODE SENSE (6) Data Header The MODE SENSE (10) data contains an 8-byte header followed by one 8-byte block descriptor, followed by zero or more variable length pages.
Page 220: Header
DLT2000 SCSI Interface Figure 8-46 MODE SENSE (10) Data Header (MSB) Byte (MSB) Figure 8-47 MODE SENSE Block Descriptor Byte Page Defined or Vendor-Unique Parameter Bytes Figure 8-48 MODE SENSE Page Descriptor Data Length The Sense Data Length specifies the length in bytes of the following MODE SENSE data that is available to be transferred during DATA IN phase.
Page 221 A Write-Protected bit of zero indicates that the tape is write-enabled. A Write-Protected bit of one indicates that the tape is write-protected. Buffered Mode The drive implements Immediate Reporting on WRITE commands through Buffered mode. If the field is zero, then the drive does not report a GOOD status on WRITE commands until the data blocks are actually written to tape.
Page 222 DLT2000 SCSI Interface Block Length This specifies the length in bytes of each logical block transferred over the SCSI bus. A block length of zero indicates that the length is variable (as specified in the I/O command). Any other value indicates the number of bytes per block that will be used for read, write, and verify type commands that specify a "Fixed"...
Page 223: Mode Sense
8.4.10.2 MODE SENSE Pages Following the block descriptor are the MODE SELECT pages, which set the device parameters. Each page has a 2-byte header which identifies the page code and indicates the number of bytes in that page. The supported Page Codes are: Page Code Figure 8-49 MODE SENSE Pages Supported PS Bit...
Page 224: Control Mode Page (0Ah)
DLT2000 SCSI Interface 8.4.10.3 Control Mode Page (0Ah) The Control Mode Page allows you to determine whether the DLT2000 will return Check Condition status when one of its write and read error counters reaches a specified threshold. RSVD Byte Queue Algorithm Modifier EECA (MSB) Figure 8-50 Control Mode Page (0Ah)
Page 225 DLT2000 SCSI Interface QErr (Queue Error) The value returned for this field is 0. DQue (Disable Queuing) The value returned for this field is 0. EECA (Enable Extended Contingent Allegiance) The DLT2000 does not support extended contingent allegiance, so the value returned for this field is 0.
Page 226: Page Format
DLT2000 SCSI Interface 8.4.10.4 Device Configuration Page (10h) The drive shall support the Device Configuration Page which has the following format: Byte (MSB) EOD Defined (MSB) Figure 8-51 Device Configuration Page Format Saving parameters is not supported and will be zero. CAP, CAF, Active Format These fields are not supported and will be zero.
Page 227 Write Buffer Full Ratio and Read Buffer Empty Ratio These indicate how full/empty the buffer memory should be before restarting the writing/reading of the media. The DLT2000 will set these fields to zero (unused) because it uses an automatic, adaptive mechanism to dynamically adjust its full/empty ratios according to the average data rates over the SCSI bus.
Page 228: Data Compression Page (0Fh)
DLT2000 SCSI Interface 8.4.10.5 Data Compression Page (0Fh) The Data Compression Page specifies parameters for the control of data compression. RSVD Byte (MSB) (MSB) Figure 8-52 Data Compression Page) PS (Parameters Savable) The Parameters Savable bit indicates if the MODE SENSE parameter data contained in this page is savable.
Page 229 DCE (Data Compression Enable) The Data Compression Enable bit indicates whether data compression is enabled. The value returned for this bit depends on the current write density of the DLT2000 as follows: 0 - Data compression is disabled. 1 - Data compression is enabled. DCC (Data Compression Capable) The Data Compression Capable bit indicates whether the device supports data compression as follows:...
Page 230: Disconnect/Reconnect Page
DLT2000 SCSI Interface 8.4.10.6 Disconnect/Reconnect Page (02h) The drive will support the Disconnect/Reconnect Page which has the following format: Byte (MSB) (MSB) (MSB) (MSB) Figure 8-53 Disconnect/Reconnect Page Format The following parameters in this page are supported: Maximum Burst Size This value specifies the maximum amount of data that will be transferred without disconnecting.
Page 231: Medium Partition Page (11H)
8.4.10.7 Medium Partition Page (11h) The drive supports the Medium Partitions Parameter Page, which has the following format: Byte Figure 8-54 Medium Partition Page Format Maximum Additional Partitions No additional partitions are supported; this field will be zero. Additional Partitions Defined The field specifies the number of additional partitions to be defined for the tape based on the settings of the SDP and IDP bits.
Page 232: Read/Write Error Recovery Page
DLT2000 SCSI Interface 8.4.10.8 Read/Write Error Recovery Page (01h) The drive will support the Error Recovery Page, which has the following format: rsvd rsvd Byte Figure 8-55 Error Recovery Page Format Option Flags TB–The Transfer Block (when not fully recovered) function is not supported. EER–The Enable Early Recovery function is always enabled.
Page 233 DLT2000 SCSI Interface Write Retry Count This field reports the maximum number of overwrite retries that will be performed before declaring an unrecoverable error. DLT2000/DLT2700 Cartridge Tape Subsystem 8-87...
Page 234: Eerom Vendor Unique Page (3Eh)
DLT2000 SCSI Interface 8.4.10.9 EEROM Vendor Unique Page (3Eh) The drive supports the EEROM vendor unique page (3Eh). All the EEROM parameters that are settable through MODE SELECT EEROM vendor unique page are returned. __________________________Note _____________________________ Because of the long list of parameters, use MODE SENSE (10) instead of MODE SENSE (6) to retrieve EEROM parameters ____________________________________________________________ Because of the length of the EEROM parameter, a 10-byte MODE SENSE command is...
Page 235: Prevent/Allow Medium Removal Cdb
8.4.11 PREVENT/ALLOW MEDIUM REMOVAL (1Eh) Logical Unit Number Byte Unused Figure 8-56 PREVENT/ALLOW MEDIUM REMOVAL CDB This command enables or disables the unloading of the tape cartridge. Prevent If this bit is set, the Unload button on the drive front panel is effectively disabled, and the UNLOAD command will not unload the media or the cartridge.
Page 236: Read Cdb
DLT2000 SCSI Interface 8.4.12 READ (08h) Logical Unit Number (MSB) Byte Unused READ transfers one or more data blocks to the initiator starting with the next block on the drive. Fixed This bit specifies the meaning of the Transfer Length field and whether fixed-length or variable-length blocks are to be transferred.
Page 237 DLT2000 SCSI Interface Incorrect Length Indicator (ILI) bit and Valid bit will be set to one. The Sense Key field will be set to NO SENSE. The Information Bytes will be set to the difference (residue) between the requested transfer length and the actual block length, or in Fixed Blocked Mode, the difference (residue) between the requested number of blocks and the actual number of blocks read.
Page 238: Read Block Limits Cdb
DLT2000 SCSI Interface 8.4.13 READ BLOCK LIMITS (05h) Logical Unit Number Byte Unused Figure 8-58 READ BLOCK LIMITS CDB READ BLOCK LIMITS tells the drive to return its limits for block length. The READ BLOCK LIMITS data shown below is sent during the DATA IN phase of the command.
Page 239: Read Buffer Cdb
8.4.14 READ BUFFER (3Ch) Logical Unit Number (MSB) Byte (MSB) Unused Figure 8-60 READ BUFFER CDB READ BUFFER is used in conjunction with WRITE BUFFER as a diagnostic function for testing the drive's data buffer and the SCSI bus integrity. Mode The drive supports the following values within the field.
Page 240: Read Buffer D Ata H Ead
DLT2000 SCSI Interface Allocation Length The Allocation Length specifies the maximum number of bytes that the initiator has allocated for returned data. 8.4.14.1 Combined Header and Data Mode In this mode, the drive returns a 4-byte header followed by the data bytes. The drive terminates the DATA IN phase when Allocation Length bytes of header and data have been transferred, or when all available data has been transferred to the initiator, whichever is less.
Page 241: Read Buffer D Escriptor
Offset Boundary (0Ch) Byte 1 (MSB) Figure 8-63 READ BUFFER Descriptor DLT2000/DLT2700 Cartridge Tape Subsystem 8-95 DLT2000 SCSI Interface Buffer Capacity (LSB)
Page 242: Read Position Cdb
DLT2000 SCSI Interface 8.4.15 READ POSITION (34h) Logical Unit Number Byte Unused Figure 8-64 READ POSITION CDB The READ POSITION command is used to read a position identifier, or SCSI Logical Block Address. The LOCATE command uses this identifier to position back to this same logical position, in a high performance fashion.
Page 243: Read Position Data Format
8.4.15.1 READ POSITION Data Format Byte (MSB) (MSB) (MSB) (MSB) Figure 8-65 READ POSITION Data Format The BOP and EOP bits will be set as appropriate. The Block Position Unknown (BPU) bit is never set since the setting of the BT bit in the Read Position CDB does not affect the block address values returned.
Page 244 DLT2000 SCSI Interface First Block Location The block address associated with the current logical position; the next block to be transferred between the target and initiator if a READ or WRITE command is issued. Last Block Location The block address associated with the current physical position; the next block to be transferred to the media and from the target's buffer.
Page 245: R Eceive D Iagnostic R Esult D Ata F Ormat
8.4.16 RECEIVE DIAGNOSTICS RESULTS (1Ch) Logical Unit Number Byte (MSB) Unused Figure 8-66 RECEIVE DIAGNOSTICS RESULTS CDB RECEIVE DIAGNOSTIC RESULTS tells the drive to send analysis data to the initiator after completion of a SEND DIAGNOSTIC command. The following data will be returned by this command.
Page 246: Release Unit Cdb
DLT2000 SCSI Interface 8.4.17 RELEASE UNIT (17h) Logical Unit Number Byte Unused Figure 8-68 RELEASE UNIT CDB RELEASE UNIT releases the drive if it is currently reserved by the requesting initiator. It is not an error to attempt to release the drive if it is not currently reserved by the requesting initiator.
Page 247: Request Sense Cdb
8.4.18 REQUEST SENSE (03h) Logical Unit Number Byte Unused Figure 8-69 REQUEST SENSE CDB REQUEST SENSE tells the target to transfer sense data to the initiator. The sense data is valid for a CHECK CONDITION or RESERVATION CONFLICT status returned on the previous command. The sense data bytes are preserved by the target until retrieved by the REQUEST SENSE command, or until the receipt of any other command from the same initiator.
Page 248: Request Sense D Ata
DLT2000 SCSI Interface 8.4.18.1 Sense Information Format Valid Filemark (MSB) Byte 7 (MSB) 15 SKSV 16 (MSB) 19 (MSB) 21 (MSB) Figure 8-70 REQUEST SENSE Data 8-102 DLT2000/DLT2700 Cartridge Tape Subsystem Error Code Segment Number Reserved Sense Key Information Bytes Additional Sense Length Command Specific Information Bytes Additional Sense Code...
Page 249 25 (MSB) Byte 26 Figure 8-70 REQUEST SENSE Data Cont’d Valid A Valid bit of one indicates that the information bytes contain valid information as defined in the SCSI specification. Error-Code A value of 70h indicates a current error – the report is associated with the most recently received command.
Page 250: Additional Sensec
DLT2000 SCSI Interface Sense Key In most cases, Additional Sense Code and/or Qualifier information is available. See the tables later in this section. Information Bytes These bytes contain the differences (residue) of the requested length minus the actual length in bytes, blocks, or Filemarks, as determined by the command. Negative values are indicated by two's complement notation.
Page 251 DLT2000 SCSI Interface Tape Motion Hours Report the number of tape motion hours, that is, the head wear hours. Format is represented in a hex decimal word (2 bytes). Power On Hours Report the total hours the drive power has been on. Format is represented in a hex decimal longword (4 bytes).
Page 252: Sense Keys Used
DLT2000 SCSI Interface Sense Description No Sense. Check the Filemark/EOM/ILI bits and the ASC/Q bytes. Recovered Error. This can be caused by rounding of Mode Parameters on a Mode Select, or to report that R/W error rates are reaching subsystem specification limits for optimal operation. However, the device may still be able to continue to function without any unrecovered errors for a long period of time.
Page 253 Table 8-6 Additional Sense Codes/Qualifiers Used ASCQ Description No Additional Sense Code No additional sense qualifier Unexpected FM Encountered End of Medium Encountered SetMark Encountered Beginning of Medium Encountered EOD Encountered Unit not ready Cause nonreportable Calibration in process Load command needed Manual Intervention needed LUN Communications Failure LUN Communications Timeout...
Page 254 DLT2000 SCSI Interface Table 8-6 Additional Sense Codes/Qualifiers Used (Cont’d) ASCQ 01h* 8-108 DLT2000/DLT2700 Cartridge Tape Subsystem Description Illegal opcode Invalid Element Address Invalid CDB field Invalid mode on write buffer Media in drive Insufficient resources Invalid offset Invalid size Image data over limit Image/personality is bad Not immediate command...
Page 255 Table 8-6 Additional Sense Codes/Qualifiers Used (Cont’d) ASCQ Description Commands Cleared by another Initiator Cannot read medium Rounded Parameter Saving Parameters Not Supported Media Not Present VU Cartridge Missing Sequential Positioning Error Reposition Error 0Dh* Media Destination Element Full 0Eh* Media Source Element Empty Invalid Bits in ID Msg Microcode has been changed...
Page 256 DLT2000 SCSI Interface Table 8-6 Additional Sense Codes/Qualifiers Used (Cont’d) ASCQ 8-110 DLT2000/DLT2700 Cartridge Tape Subsystem Description Internal Target Failure Unexpected Selection Interrupt Command complete sequence failure SCSI chip Gross Error Unexplained Residue in TC Registers Immediate data transfer timeout Insufficient CDB bytes Disconnect/SDP sequence failed Bus DMA Transfer Timeout...
Page 257 Table 8-6 Additional Sense Codes/Qualifiers Used (Cont’d) ASCQ Description Threshold Condition Met Log Counter at Maximum Calibration Error Cleaning Required Cleaning Requested Directory Read Error Not allowed if not at BOT * = Medium Changer specific commands DLT2000 SCSI Interface DLT2000/DLT2700 Cartridge Tape Subsystem 8-111...
Page 258: Reserve Unit Cdb
DLT2000 SCSI Interface 8.4.19 RESERVE UNIT (16h) Logical Unit Number Byte Unused Figure 8-71 RESERVE UNIT CDB RESERVE UNIT reserves the specified drive for exclusive use by the requesting initiator or for another specified SCSI device. The reservation remains in effect until one of the following conditions is met: The initiator that made the reservation sends another RESERVE UNIT command.
Page 259: Medium Changer Considerations
DLT2000 SCSI Interface SCSI device specified in the Third-Party Device ID field. The drive preserves the reservation until any one of the four conditions mentioned above occurs. The drive ignores any attempt made by any other initiator to release the reservation and returns a GOOD status.
Page 260: Rewind (01H)
DLT2000 SCSI Interface 8.4.20 REWIND (01h) Logical Unit Number Byte Unused REWIND tells the drive to position the tape at the beginning of the currently active partition. Before rewinding, the drive writes any write data that is buffered to the tape, and appends an EOD marker.
Page 261: Send Diagnostic Cdb
8.4.21 SEND DIAGNOSTIC (1Dh) Logical Unit Number Byte (MSB) Unused Figure 8-73 SEND DIAGNOSTIC CDB SEND DIAGNOSTIC tells the drive to perform diagnostic tests on itself. The Page Format field is not supported and must be zero. Two separate types of unit resident tests can be accessed: Electronics Self-Test - (Level 1 test) To invoke the diagnostic, a good portion of the controller hardware and software must be functioning properly.
Page 262 DLT2000 SCSI Interface Writes 100 32 KB records on track 1. Repositions to the beginning of track 1. Reads the records. Rewinds the tape. The execution time for the test is 6 minutes, if calibration is not required. This test is specified by setting the Self-Test and UnitOfL bits, and zeroing the DevOfL bit.
Page 263: Send Diagnostic P Arameter L Ist F Ormat
Table 8-7 Send Diagnostics Parameters Selftest DevOfL UnitOfL (MSB) (MSB) Maximum Number of Test Passes Byte (MSB) (MSB) Figure 8-74 SEND DIAGNOSTIC Parameter List Format DLT2000 SCSI Interface Selftest Action Illegal combination Self-Test 2 with default parameters Illegal combination Self-Test 2 with default parameters Self-Test 1 with default parameters Self-Test 2 with default parameters Self-Test 1 with default parameters...
Page 264: Definition Of Pattern
DLT2000 SCSI Interface Table 8-8 Definition of Pattern Numbers Pattern Name Rotate All 0's Alternating 1's and 0's Marching 1 Marching 0 Random Data If the Max Number of Passes is zero, this indicates to loop forever. A BUS Reset or a selection from the host sending an Abort or a Bus Device Reset message will terminate testing.
Page 265 Table 8-9 Sense Keys Used Sense Key Description Medium Error. A positioning error has occurred where the returned position does not match the expected. Hardware Error. The Additional Sense Code/Qualifier fields will provide more specific information. ILLEGAL REQUEST. Illegal bit settings in the SEND DIAGNOSTIC command.
Page 266: Space Cdb
DLT2000 SCSI Interface 8.4.22 SPACE (11h) Logical Unit Number (MSB) Byte Unused SPACE provides a variety of positioning functions that are determined by Code and Count fields in the Command Descriptor Block. Both forward (toward EOM/P) and reverse (toward BOM/P) positioning are provided. Code The code is defined as follows: Space Code...
Page 267 Count When spacing over blocks or marks, the Count field is interpreted as follows: A positive value N causes forward movement over N blocks or marks. The tape is logically positioned after the Nth block or mark on the EOM/P side. A zero value causes no change in the logical position.
Page 268: Test Unit Ready Cdb
DLT2000 SCSI Interface 8.4.23 TEST UNIT READY (00h) Logical Unit Number Byte Unused Figure 8-77 TEST UNIT READY CDB TEST UNIT READY checks if the drive unit is ready for commands involving tape movement. If the drive has a tape loaded, the command returns a GOOD status. Otherwise, CHECK CONDITION is reported.
Page 269: Verify Cdb
8.4.24 VERIFY (13h) Logical Unit Number (MSB) Byte Unused VERIFY verifies one or more blocks beginning with the next block on the tape. Both CRC and EDCs are validated. Immed If this bit is set, the Verify command will complete before any media movement is done (that is, when processing has been initiated).
Page 270: Write Cdb
DLT2000 SCSI Interface 8.4.25 WRITE (0Ah) Logical Unit Number Byte (MSB) Unused WRITE transfers one or more blocks from the host to the current logical position. When in Buffered Mode (see MODE SELECT), the tape drive reports a GOOD status on WRITE commands as soon as this data block has been transferred to the data buffer.
Page 271 DLT2000 SCSI Interface Fixed The fixed bit specifies both the meaning of the Transfer Length field and whether fixed- length or variable-length blocks are to be transferred. If the Fixed bit is set to zero, Variable Block mode is selected. A single block is transferred from the initiator and is written to the logical unit beginning at the current logical tape position.
Page 272: Write Buffer Cdb
DLT2000 SCSI Interface 8.4.26 WRITE BUFFER (3Bh) Logical Unit Number Byte (MSB) (MSB) Unused Figure 8-80 WRITE BUFFER CDB WRITE BUFFER is used with READ BUFFER as a diagnostic function for testing the device data buffer, DMA engine, SCSI bus interface hardware, and SCSI bus integrity. It is also used for downloading and updating controller microcode (firmware).
Page 273: Header And Data Mode
8.4.26.1 Header and Data Mode The data to be transferred is preceded by a 4-byte header consisting entirely of reserved bytes. This header is discarded (not stored into the buffer). The buffer offset field must be zero for this mode. 8.4.26.2 Write Data Similar to mode 000b, except there is no header in the data passed to the target.
Page 274 DLT2000 SCSI Interface __________________________Note _____________________________ During the actual reprogramming of the FLASH memory chips, if any type of powerfail occurs, or if the reprogramming fails part way through, the subsystem will be unusable, and the controller board will need to be replaced. ____________________________________________________________ When the Save operation is successfully completed, the firmware restarts itself, causing POST to be rerun, and two Unit Attention conditions are generated: power-up reset, and...
Page 275: Write Filemarks Cdb
8.4.27 WRITE FILEMARKS (10h) Logical Unit Number Byte (MSB) Unused Figure 8-82 WRITE FILEMARKS CDB WRITE FILEMARKS causes the specified number of Filemarks to be written beginning at the current logical position on tape. If the Immed bit is not set, any data or Filemarks in the write cache buffer are written to tape.
Page 276 DLT2000 SCSI Interface Additional Sense Code Qualifier fields are set to EOM/P detected. The drive will attempt to complete any subsequent WRITE FILEMARKS, returning a CHECK CONDITION status in each case. If the drive encounters the physical EOM when attempting a WRITE FILEMARKS, CHECK CONDITION status is returned. 8-130 DLT2000/DLT2700 Cartridge Tape Subsystem...
Page 277: Supported Scsi-2 Medium Changer Device Commands
8.5 Supported SCSI-2 Medium Changer Device Commands On the Medium Changer LUN, only commands defined for this device type are allowed. The following commands are implemented: Table 8-11 SCSI-2 Medium Changer Commands Opcode Command INITIALIZE ELEMENT STATUS INQUIRY MODE SELECT MODE SENSE MOVE MEDIUM READ BUFFER...
Page 278: Initialize Element Status (07H)
DLT2000 SCSI Interface 8.5.1 INITIALIZE ELEMENT STATUS (07h) Logical Unit Number Byte Unused Figure 8-83 Initialize Element Status CDB This command causes the medium changer to initialize the element status. 8-132 DLT2000/DLT2700 Cartridge Tape Subsystem Operation Code (07h) Reserved Reserved Reserved Reserved Reserved...
Page 279: E Lement T Ype C Ode D Efinitions
Unused Figure 8-84 READ ELEMENT STATUS CDB Code All element types reported (valid in CDB only) Medium Transport Element Storage Element (magazine slot) Import Export Element (not supported) Data Transfer Element (tape drive) 5h−Fh reserved Figure 8-85 Element Type Code Definitions The format of Element Status data is defined in the SCSI-2 specification.
Page 280: Element Status Data Header
DLT2000 SCSI Interface 8.5.2.1 Element Status Data Header (MSB) (MSB) Byte (MSB) Figure 8-86 Element Status Data Header 8-134 DLT2000/DLT2700 Cartridge Tape Subsystem First Element Address Reported Number of Elements Reported Reserved Byte Count of Report Available (LSB) (LSB) (LSB)
Page 281: Medium Transport Element Status Page
8.5.2.2 Medium Transport Element Status Page PVolTag (MSB) Byte (MSB) Descriptor (MSB) Byte SValid 18 (MSB) Figure 8-87 Medium Transport Element Status Page There is only one Medium Transport element, which can be addressed explicitly as element address 1, or implicitly as address 0. PvolTag and AVolTag are always zero.
Page 282: Storage Element Status Page
(MSB) 26 to n Figure 8-88 Storage Element Status Page There are up to five/seven Storage Elements, corresponding to the number slots in a magazine for DLT2500/DLT2700. PvolTag and AVolTag are always zero. Access is always 1, and Full is set to 1 if a media cartridge is in the corresponding magazine slot.
Page 283 DLT2000 SCSI Interface The Source Element Address will always be set to this element's address. DLT2000/DLT2700 Cartridge Tape Subsystem 8-137...
Page 284: Data Transfer Element Status Page
DLT2000 SCSI Interface 8.5.2.4 Data Transfer Element Status Page PVolTag (MSB) Byte Reserved (MSB) Descriptor (MSB) NotBus Byte SValid (MSB) Figure 8-89 Data Transfer Element Status Page PvolTag and AVolTag are always zero. Access is always set, and Full is set if a cartridge is in the tape drive. IDValid and LUValid are always set, drive LUN is 0.
Page 285: Mode Sense/Select (1Ah/15H)
8.5.3 MODE SENSE/SELECT (1Ah/15h) All three pages that are specific to Medium Changers are supported. 8.5.3.1 Device Capabilities Page (1Fh) The drive shall support the Device Capabilities Page which has the following format: Byte Figure 8-90 Device Capabilities Page Format Bit Field Values Elements that can store media: StorDT, StorST Valid Source->Destination pairs: ST->DT, DT->ST...
Page 286 DLT2000 SCSI Interface The medium changer does not support "ST->ST" or "DT->DT". 8-140 DLT2000/DLT2700 Cartridge Tape Subsystem...
Page 287: Element Address Assignment Page (1Dh)
Page Code (1Dh) Length (12h) 1st Medium Transport Element Address (01h) Number of Medium Transport Elements (1) 1st Storage Element Address (100h) Number of Storage Elements 1st Import/Export Elements (0) Number of Import/Export Elements 1st Data Transfer Element Address (10)h...
Page 288 Medium Transport Element 2-0Fh Reserved Data Transfer Element (tape drive) 11h-0FFh Reserved 100h Medium Storage Element (Magazine slot 0) 101h Medium Storage Element (Magazine slot 1) 102h Medium Storage Element (Magazine slot 2) 103h Medium Storage Element (Magazine slot 3)
Page 289: T Ransport G Eometry P Age F Ormat
8.5.3.3 Transport Geometry Parameters Page (1Eh) The drive shall support the Transport Geometry Page which has the following format: Byte Figure 8-92 Transport Geometry Page Format Rotation of media is not appropriate for this type of Loader, so the Rotate bit is zero. There is only one Medium Transport Element, so there is only one set, with one member.
Page 290: Move Medium Cdb
DLT2000 SCSI Interface 8.5.4 MOVE MEDIUM (A5h) Logical Unit Number (MSB) Byte (MSB) (MSB) Unused Figure 8-93 MOVE MEDIUM CDB The Move Medium command is used to move cartridges from the tape drive to the magazine slot it came from, or from any magazine slot to the tape drive. The Transport Element Address field must be zero or one.
Page 291 DLT2000 SCSI Interface DLT2000/DLT2700 Cartridge Tape Subsystem 8-145...
Page 292: A.1 In Thi Appendix
A.1 In This Appendix Appendix A contains specifications for the DLT2000 tape drive and the DLT2500/DLT2700 mini-library including: Topic Physical Description Performance Specifications Environmental Specifications Vibration and Shock Specifications Electromagnetic Interference (EMI) Susceptibility Regulatory Requirements Drive Reliability Factors CompacTape Recording Media Specifications Appendix A Technical Specifications Section...
Page 293: A.2 P Hysical D Escription
Technical Specifications A.2 Physical Description Table A-1 lists the key physical and functional specifications of the DLT2000 tape drive. Table A-1 DLT2000 Physical Specifications Description Drive 5 1/4 inch FH (modified Height 82.5 mm (3.25 in) without bezel 86.3 mm (3.4 in) with bezel Width 144.8 mm (5.7 in) behind bezel 148.3 mm (5.84 in) with bezel...
Page 294 Table A-1 DLT2000 Physical Specifications (cont'd) Description Drive 5 1/4 inch FH (modified Electrical rating, D.C. Supply (Auto ranging) Power Requirements 22 W steady state/33 W, maximum Power Consumption +5 Volt Bus 2.5 A steady state/3.0 A maximum +12 Volt Bus 0.8 A steady state/3.0 A maximum Communication...
Page 295: Identifying The Correct Ac Power Cord
An AC power cord was supplied with your unit. Carefully inspect it and make sure that it is the correct one for your country or region based on the criteria listed below. If you feel the supplied AC power cord is not correct, contact your authorized Quantum service representative.
Page 296: A-1 Power Cord
Technical Specifications Figure A-1 shows the different AC power cord plug configurations for 115V and 220V/240V usage. Figure A-1 Power Cords DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem A-5...
Page 297 Technical Specifications Table A-2 lists the key functional specifications of the DLT2000 tape drive. Table A-2 DLT2000 Functional Specifications Functions CompacTape III: Capacity/formatted native Capacity/formatted compressed 2:1 Interface Drive Type Recording Type Form Factor Transfer Rate, Raw Native Transfer Rate, User Native Uncompressed Transfer Rate, User Compressed 1...
Page 298 Table A-3 lists the key physical specifications for the DLT2500 mini-library. Table A-3 DLT2500 Mini-Library Physical Specifications Description Rack Mount Height 295 mm (11.6 in) Width 414 mm (16.3 in) Length 259 mm (10.2 in) Weight 12 kg (27 lb) Environmental temperature Operating...
Page 299 Technical Specifications Table A-4 lists the key physical specifications for the DLT2700 mini-library. Table A-4 DLT2700 Mini-Library Physical Specifications Description Height 26.47 cm (10.42 in) Width 22.20 cm (8.74 in) Length 68.5 cm (27.0 in) Weight 24.95 kg (55 lb) Environmental temperature Operating...
Page 300: A-2 Mounting Hole Dimension (Top View)
Technical Specifications Figure A-2 shows the mounting holes and dimensions in a top view of the DLT2000 drive. 5 . 5 0 0 5 . 8 4 ( 1 3 9 . 7 0 ) ( 1 4 8 . 3 ) 5 .
Page 301 Technical Specifications Figure A-3 shows the mounting holes and dimensions in a side view of the DLT2000 drive. 8 X 6 - 3 2 U N C - 2 B 3 . 2 5 0 ( 8 2 . 5 5 ) .
Page 302: Performance Specifications
A.3 Performance Specifications Section A.3 describes performance specifications including: Topic Nominal Tape Tension DLT2000 Timing Characteristics DLT2700 Media Loader Timing Characteristics A.3.1 Nominal Tape Tension Nominal tape tension is: 3.0 ± 1 oz when stationary 4.7 ± 1 oz at operating speed A.3.2 DLT2000 Timing Characteristics Table A-5 lists timing characteristics of the DLT2000 tape drive: Table A-5 DLT2000 Timing Characteristics...
Page 303: Dlt2500Xt Media Loader Timing Characteristics
Technical Specifications A.3.3 DLT2500xt Media Loader Timing Characteristics Table A-6 lists timing characteristics of the DLT2500xt media loader. Table A-6 DLT2500xt Media Loader Timing Characteristics Nominal magazine scan Move cartridge slot to drive Move cartridge drive to slot Error recovery Load media on to drive &...
Page 304: Temperature And Humidity
The tape drive conforms to a modified Class B environment that includes general offices and workspaces with: Conditioned and marginally-conditioned areas with central or remote air-conditioning Complete temperature and humidity controls Moderate control tolerances Systems capable of maintaining comfort levels (for example, typical offices and general work areas) Marginal heating or cooling apparatus No humidity conditioning...
Page 305: Altitude
Technical Specifications Table A-10 lists the storage ranges. Table A-10 Storage Ranges (Unpacked or Packed) Dry bulb temperature Temperature gradient Temperature shock Relative humidity Humidity gradient Table A-11 lists the shipment ranges: Dry bulb temperature Temperature gradient Temperature shock Relative humidity Humidity gradient A.4.2 Altitude...
Page 306: Vibration And Shock Specifications
A.5 Vibration and Shock Specifications Section A.5 describes environmental specifications: Topic Operating Shock and Vibration Nonoperating Shock and Vibration A.5.1 Operating Shock and Vibration Table A-12 lists operating vibration specifications and Table A-13 lists operating shock specifications. Table A-12 Operating Vibration Specifications Vibration type Frequency range Acceleration level...
Page 307: Nonoperating Shock And Vibrattion
Technical Specifications A.5.2 Nonoperating Shock and Vibration Table A-14 lists nonoperating shock (bench handling) specifications for the product without its shipping packaging. Table A-14 Nonoperating Shock "Overstress" (Bench Handling - Unpackaged) Specifications Test Type Description Application Tables A-15, A-16, A-17 A-18 and A-19 list nonoperating vibration and nonoperating shock specifications for the product in its shipping packaging.
Page 308 Table A-16 Nonoperating (Packaged) Repetitive Shock Specifications Excitation type Synchronous vertical motion; 1 in excursion Shock (bounce) 14,200 total cycles Application Half cycles each in x and y orientations; 1/2 7100 cycles in the x orientation, 1\2 7100 cycles in the y orientation Table A-17 Nonoperating (Packaged) Shock (Drop) Specifications Test type...
Page 309 Technical Specifications Table A-19 Nonoperating (Unpackaged) Shock Specifications Nonoperating (Unpackaged) Pulse shape Peak acceleration Duration Application Pulse shape Peak acceleration Duration Application A-18 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Square wave 40 G 180 in/sec X, Y, and Z axes, twice in each axis 1/2 sine pulse 140 G...
Page 310: Electromagnetic Interference (Emi) Susceptibility
A.6 Electromagnetic Interference (EMI) Susceptibility Section A. describes electromagnetic interference specifications including: Topic Electromagnetic Emissions Conducted Emissions Radiated Emissions Magnetic Radiated Susceptibility Radiated Susceptibility Conducted Susceptibility ESD Failure Level Limits Acoustic Noise Emissions A.6.1 Electromagnetic Emissions Electromagnetic emissions include: CSA 108.8 EEC Directive 89/336 EN55022 and National standards are based on: BS6527...
Page 311: A.6.4 Magnetic Radiated Susceptibility
Technical Specifications Table A-20 list the conducted emission limits. Table A-20 Conducted Emissions Frequency Range (MHz) 0.15 to 0.050 0.50 to 5 5 to 30 *The limit decreases with the logarithm of the frequency. A.6.3 Radiated Emissions Limits of radiated interference field strength, in the frequency range from 30 MHz to 30 GHz at a test distance of 3 and 10 meters, for Class B equipment are listed in table A- Table A-21 Radiated Emissions, 30 Mhz to 30 Ghz Frequency range (MHz)
Page 312: Cable:
A.6.5 Radiated Susceptibility Table A-23 lists the radiated susceptibility limits: Table A-23 High Frequency, Electric Fields, 1 to 1000 Mhz 3 V/m (rms) 80% modulated 1 kHz A.6.6 Conducted Susceptibility The transient voltage is the actual peak voltage above the normal ac voltage from the power source.
Page 313: Esd Failure Level Limits
Technical Specifications A.6.7 ESD Failure Level Limits Table A-27 lists the ESD failure level limits for normal operator access areas. Table A-27 ESD Failure Level Limits Failure Type Equipment Hard Office Hardware Office A.6.8 Acoustic Noise Emissions The following lists the acoustic noise emission levels: Table A-28 Acoustic Noise Emissions, Nominal Noise Power Emission Level (LNPEc) Mode...
Page 314 Table A-28 Acoustic Noise Declaration for German Noise Declaration Law (Cont’d) Generic Product Option Numbers TH3xx TH3Bx TH3Ex TH3Fx DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem A-23 Technical Specifications Description DLT2000 drive DLT2000 table top drive DLT2700 cartridge rackmount loader DLT2700 cartridge table top loader...
Page 315: E Missions A
Technical Specifications A.7 Regulatory Requirements Regulatory requirements include: Safety Electromagnetic emissions A.7.1 Safety Requirements Safety requirements include: UL1950 - Information Technology Including Electrical Business Equipment CSA C22.2 #220 - Information Technology Including Electrical Business Equipment TUV EN60950 - Information Technology Including Electrical Business Equipment A.7.2 Electromagnetic Emission Requirements Electromagnetic emission requirements include:...
Page 316: Drive Reliability Factors
Continuous operation, under severe stress envelope with CompacTape media. Quantum Corporation does not warrant that predicted MTBF is representative of any particular unit installed for customer use. Actual figures vary from unit to unit.
Page 317: Compactape Recording Media Specifications
Technical Specifications A.9 CompacTape Recording Media Specifications Table A-30 lists the media characteristics: Table A-30 CompacTape Recording Media Specifications CompacTape III Description Width Length Cartridge Dimensions Shelf Life Usage A-26 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Quantity 0.5 in metal particle 1200 ft 4.1 in x 4.1 in x 1.0 in 30 years min.
Page 318: B: Definition Of Vendor Unique Sense Data Information
Definition of Vendor Unique Sense Data B.1 In This Appendix Appendix B lists the internal status codes with their descriptions. B.2 Internal Status Code The internal status code is located at byte offset 18 of the request sense data and may be available after certain types of failures.
Page 319 Definition of Vendor Unique Sense Data Information Table B-1 Internal Status Code (cont’d) Description Logical EOT encountered, 2 file marks Command connection dropped Cleared from queue Missing data block read only Gap within object (missing blocks in record) Record on tape larger than requested Compare error Successive blocks missing across objects Drive state not valid for command...
Page 320 Table B-1 Internal Status Code (cont’d) Description Invalid source slot Invalid destination slot Source slot empty Destination slot full Medium changer motion error Medium changer/drive interface error Medium changer/slot interface error Medium changer mechanical error Medium changer hardware error Medium changer controller error Unrecognized medium changer subcommand Medium changer fatal error Medium changer is in manual mode...
Page 321 Definition of Vendor Unique Sense Data Information B-4 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 322: C: Sense Key Information
Appendix C Sense Key Information C.1 In This Appendix Appendix C lists the sense key information. No Sense (0): 00 01 Unexpected FM encountered 00 02 EOM encountered 00 04 BOM encountered Recovered Error (1): 0A 00 Error Log Overflow 37 00 Rounded Parameter 3B 08 Repositioning error 44 C1 Internal Target failure, EEROM copy 1 area bad...
Page 323 Sense Key Information 04 02 Unit Not Ready, Load command needed 04 03 Unit Not Ready, Manual Intervention needed 3A 00 Medium Not Present 3A 80 Medium Not Present, Cartridge Missing 5A 01 Operator Media Removal Request Medium Error (3): 04 02 Unit Not Ready, Load command needed 0C 00 Write Error 11 00 Unrecovered Read Error...
Page 324 Sense Key Information 40 82 Diagnostic/POST failure, bad drive status 40 83 Diagnostic/POST failure, loader diags failure 40 84 Diagnostic/POST failure, POST soft failure 44 00 Internal Target Failure 44 80 Unexpected selection interrupt 44 83 SCSI chip gross error 44 84 Unexplained residue in TC registers 44 85 Immediate data transfer timeout 44 86 Insufficient CDB bytes...
Page 325 Sense Key Information 24 8D Bad drive/server image EDC 24 8E Invalid personality for code update 24 8F Bad controller image EDC 25 00 Illegal LUN 26 00 Parameter List Error, invalid field 26 01 Parameter List Error, parameter not supported 26 02 Parameter List Error, parameter value invalid 39 00 Saving parameters not supported 3B 0D Media Destination Element Full...
Page 326 47 00 SCSI parity error 48 00 IDE Message received 49 00 Invalid Message Error 4E 00 Overlapped commands attempted Volume Overflow (Dh): no additional sense code Miscompare (Eh): no additional sense code _________________________ Note _____________________________ The Filemark/EOM/ILI bits may be set even though ASC/ASCQ = 00 00: ___________________________________________________________ (1) FM, EOM, ILI bit may be set with no sense key (0) and ASC/ASCQ = 00 00 (2) FM, EOM, ILI bit may be set with recovered error (1) and ASC/ASCQ = 00 00...
Page 327 Sense Key Information C-6 DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...
Page 328: Packet
Appendix D EEROM Resident Bugcheck and Event Logs D.1 EEROM Packets (Last n Error Events) The DLT2000 products keep certain error and event logs in semi-permanent non- volatile memory (EEROM) on the ECM. There is room for a total of 14 such information packets in EEROM, each consisting of 98 bytes (96 data bytes plus 2 control bytes) of information.
Page 329: D-1 Eerom Log Area Layout
EEROM Resident Bugcheck and Event Logs Figure D-1 EEROM Log Area Layout Table D-1 EEROM LOG Packet Types Packet Purpose Type Packet Empty Bugcheck - Fatal System Crash PO/ST (power on/self test) Failure EVENT LOG - Generic event informational (non-fatal) data CUP - Code Update Status Packet Manufacturing DIAG results packet D.2 Bugcheck Packets...
Page 330 Bits Up−Time Stamp POH/PC Time Stamp Error Code 68020 Status Register 68020 PC Register 68020 D0−D7 Registers Figure D-2 Bugcheck LOG Packet Layout Table D-2 Bugcheck Error Codes Bugcheck Meaning and Possible Cause Code E204 nexpected Timer2 Interrupt- possible ECM fault EE01 Spurious Non-Maskable Interrupt- possible ECM fault EE02...
Page 331: Po/St Failure Packets
EEROM Resident Bugcheck and Event Logs D.3 PO/ST failure packets PO/ST failure packets are stored whenever the Power-On /Self-Test logic detects a failure of any kind. Each failure is encoded as a 4-byte vector. In some cases, multiple vectors may be stored, as shown in Figure D-3. Figure D-3 POST LOG Packet Layout D.4 Event Log packets Event logs are non fatal and can occur to log error or informative information...
Page 332: Directory Failure Event Logs
Figure D-4 EVENT LOG Packet Layout Event Log Code 0xA400 0xA401 0xA402 0xA403 0xA407 0xA408 D.4.1 Directory Failure Event Logs These event logs are written when a directory read or write request fails for any reason. Refer to Figure D-5 and the sections that follow. EEROM Resident Bugcheck and Event Logs Bits Up−Time...
Page 333 EEROM Resident Bugcheck and Event Logs Figure D-5 Directory Failure Event Logs Saved Overwrites/ReReads/ReWrites These are fields are used as temporaries and have no use in interpreting these packets. Dir Called Mode A code which specifies the original reason for the directory call. A value of 1 indicates a directory READ (on load);...
Page 334: Primary Status/Secondary Status
0x01 READ on Load operation complete 0x02 Inhibit further WRITEs unless WRITE from BOT 0x04 LBN 0 was found intact 0x08 Directory WRITE failed 0x10 Tape FORMAT Mismatch 0x20 Event Log Generated 0x40 Tape Format Unknown 0x80 Reserved D.5 Primary Status/Secondary Status Table D-5 Directory Event Statuses Primary Secondary...
Page 335: Code Update (Cup) Status Packet
EEROM Resident Bugcheck and Event Logs Servo EOT Address Servo version of tape length. Unique Media ID The Unique Media Identification number, stored on the media. CR_MSG Address The address of the CR-MSG request block from TDS. D.6 Code Update (CUP) Status Packet The CUP status packet is written after every code update attempt regardless of its status.
Page 336 Bits POH/PC Time Stamp 68020 Fw Update Status Servo Fw Update Status reserved Old 68020 Code Version Old 68020 Code Sub−revision Old 68020 Rel Flag reserved Old 68020 Code EDC value Old 68020 Code Time Stamp Old 68020 Code Pers Old 68020 Code Pers SubRev reserved Old Servo Code Version...
Page 337 EEROM Resident Bugcheck and Event Logs Table D-6 68020 Code Update Status Status Table D-7 Servo Code Update Status Status D-10 DLT2000/DLT2700 Cartridge Tape Subsystem Meaning No Update Operation Performed Code Update Operation Successful Personality Lockout Image EDC Check Failed Bad Image Write to FLASH Memory Failed Erase of FLASH Memory Failed...
Page 338 5-20 labeling, 3-26 loading, 3-20, 5-17 positioning the write-protect switch, 3-17 preserving, 3-26 removing from the magazine, 5-23 storage, 3-26 unloading, 3-24, 5-18 using a, 3-22 using cleaning tape cartridge, 3-23 write-protect switch, 5-20 Cartridge insert/release handle...
Page 339 Index Controls cartridge insert/release handle, 3-11 description, 3-11 front panel, 3-10 Unload button, 3-11 Data cache, 8-4 Data compression, 8-82 Data mode, 8-94 Data protection, 3-19, 4-21 Data transfer, 8-1 Data Transfer Element Status Page, 8-137 Data transfer rate, 1-2 Datacompression, 8-53 Default operating modes, 4-17 Definition of Vendor Unique Sense Data...
Page 340: I Nstallation Testing
Electromagnetic emissions, A-19 Electromagnetic interference (EMI), A-19 Element address assignment page, 8-140 Element status data header, 8-134 Embedded Diagnostics, 1-3 electromagnetic interference, A-19 ERASE, 8-16 Error events, 8-41 ESD failure level limits, A-22 Event Log packets, D-4 Directory Failure Event Logs, D-5 Failure level limits ESD, A-22 Fast transient voltage...
Page 341 Index Low-level conducted interference, A-21 LUNs, 8-2 Magazine, 5-20 removing from receiver, 5-23 restoration into receiver, 5-23 Magazine door, open, 4-28 Magazine, description, 4-22 Magazine, installing, 4-26 Magazine, removing from mini-library, 4-26 Magnetic radiated susceptibility, A-20 Manual mode, 5-5, 5-7 Media, 1-2 Media loader inquiry response, 8-24 Medium Changer...
Page 342 Read/Write Error Log Page (Page 2 and 3), 8-38 Read/Write Error Recovery Page (01h), 8- 61, 8-86 Storage Element Status Page, 8-136 Supported Pages Log Page (Page 0), 8-37 Transport Geometry Parameters Page (1Eh), 8-142 Vital Product Data Pages, 8-22...
Page 343: Tape Cartridge, Positioning The Write-Protect Switch
Shock requirements environmental requirements, A-16 Side view, A-10 Slot Select button, 5-17 operation, 5-17 SPACE, 8-120 STATUS phase, 8-5 Storage element status page, 8-136 6-DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem Storage ranges environmental specifications, A-14 Subsystem installation, 2-4 Supported SCSI-2 medium changer device...
Page 344 VERIFY, 8-123 Vibration and shock requirements environmental specifications, A-15 Vital product data pages, 8-22 WRITE, 8-124 WRITE BUFFER, 8-126 Write data, 8-127 WRITE FILEMARKS, 8-129 Write-protect switch, 3-17, 4-20, 4-21, 5-20 diagram, 3-18, 4-20 positioning, 3-17 write-enabling, 3-19 write-protecting, 3-19 Write-protect switch, positioning, 4-20 Write-protect switch,write-enabling, 4-21 Write-protect switch,write-protecting, 4-21...
Page 345 Index 8-DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem...

Quantum DLT 2000 Product Manual

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Chapter 1: Overview and Features of the Dlt2000/Dlt2500/Dlt2700 Product

Chapter 7: Firmware Update

Chapter 8: Dlt2000 Scsi Interface

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