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Quantum LTO-2 User Manual

Half-height tape drive
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  • Page 2: Copyright Statement

    Quantum LTO-2 Half-Height Tape Drive, P/N 50002763, B01, July 2005 Made in USA. Quantum Corporation provides this publication “as is” without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose.

  • Page 3: Table Of Contents

    Features ... 2 Chapter 2 Installation and Quick Start Quick Start Guide ... 4 Internal LTO-2 Half-Height Tape Drive Quick Start ... 4 Desktop LTO-2 Half-Height Tape Drive Quick Start... 5 Unpacking and Inspection... 6 Internal Tape Drive Guidelines and Cautions... 6 Drive Installation Instructions ...
  • Page 4 Connecting a Serial Cable for Tape Libraries...14 Connecting a Power Cable...15 Installing the LTO Driver...15 Registering Your Tape Drive...15 Installing a Desktop LTO-2 Half-Height Tape Drive...16 Setting the SCSI ID ...16 Connecting a SCSI Cable...16 Checking the SCSI Termination ...17 Connecting a Power Cord...17...
  • Page 5 Configuring for the IBM AIX Environment (AIX Version 4.1.x and later) ... 54 Finding Existing SCSI Controllers and Devices ... 54 Configuring the LTO-2 Half-Height Tape Drive using SMIT... 54 Configuring for SCO Open Server 5.0.x ... 56 Finding Existing SCSI Controllers and Devices ... 56 Configuring the LTO-2 Half-Height Tape Drive with mkdev...
  • Page 6 Contents Finding Existing SCSI Controllers and Devices ...58 Using the LTO-2 Half-Height Tape Drive ...59 Configuring for SGI Irix ...60 Finding Current SCSI Controllers and Targets...60 Modifying the IRIX Configuration File...60 Configuring for HP-UX 11.0 ...61 Finding Current Hardware/Driver Configuration...61 Attaching the LTO-2 Half-Height Tape Drive ...61...
  • Page 7 Figure 4 Internal LTO-2 Half-Height Tape Drive Mounting Dimensions... 12 Figure 5 Rear View of the Internal LTO-2 Half-Height Tape Drive .. 13 Figure 6 Two SCSI Termination Examples for the Internal LTO-2 Half-Height Tape Drive ... 14 Figure 7 SCSI Termination Examples for the Desktop LTO-2 Half- Height Tape Drive...
  • Page 8 Figures viii LTO-2 Half-Height Tape Drive User’s Guide...
  • Page 9 Table 1 SCSI IDs and Jumper Settings for LTO-2 Half-Height in Drive ... 10 Table 2 Serial Interface Connector Pin Assignments ... 15 Table 3 LTO-2 Tape Drive Blink Codes ... 21 Table 4 Physical Specifications... 36 Table 5 Voltage and Current ... 38 Table 6 Power Dissipation ...
  • Page 10 Tables LTO-2 Half-Height Tape Drive User’s Guide...
  • Page 11 This document was written for operators of the Quantum LTO-2 Half- Audience Height Tape Drive. This document provides information about the Quantum LTO-2 Half- Purpose Height Tape Drive including: • Installing the drive • Basic drive operations • Maintenance •...
  • Page 12 Conventions Note: Tech Tip: Caution: Warning: LTO-2 Half-Height Tape Drive User’s Guide explains the use and operation of the drive and describes the theory of operation behind the contains detailed drive and cartridge describes the settings for UNIX systems. provides troubleshooting Notes emphasize important information related to the main topic.
  • Page 13 Documents related to the LTO-2 Half-Height Tape Drive are shown Related below: Documents SCSI-2 Specification The SCSI-2 communications specification is the proposed American National Standard for information systems, dated March 9, 1990. Copies may be obtained from: Global Engineering Documents...
  • Page 14 Preface Customer Support The Quantum Customer Support Department provides a 24-hour help desk that can be reached at: North/South America: Asia/Pacific Rim: Europe/Middle East/Africa: Send faxes for the Customer Support Department to: North/South America: Asia/Pacific Rim: Europe/Middle East/Africa: Send e-mail for the Customer Support Department to:...

  • Page 15: Chapter 1 Introduction

    The LTO-2 Half-Height Tape Drive is a high-performance 8-channel tape drive that complies with the LTO interchange specifications. It is suited for mid-range to high-end servers, mainframe systems, and tape library automation systems. The LTO-2 Half-Height Tape Drive uses Ultrium data cartridges. Its capacity is maximized using intelligent data compression.

  • Page 16: Chapter 1 Introduction Features

    Chapter 1 Introduction Features Features The following list summarizes the key features of the LTO-2 Half-Height Tape Drives. • Performance - Up to 26 Mbytes-per-second native transfer. • 13-Speed Transfer matches tape drive speed to that of the host and optimizes data transfers, resulting in shorter backup times and increased reliability.

  • Page 17: Chapter 2 Installation And Quick Start

    Installation and Quick Start This chapter explains how to install the internal and desktop LTO-2 Half-Height Tape Drives. Topics covered in this chapter are: • Quick Start Guide • Unpacking and Inspection • Internal Tape Drive Guidelines and Cautions •...

  • Page 18: Quick Start Guide

    Use the following quick-start instructions to get your tape drive up and running as quickly as possible. Use the following procedure to install internal LTO-2 Half-Height Tape Internal LTO-2 Drive. Print this page and check each step as you complete it. If you need Half-Height Tape more information about a step, turn to the section referenced in the step.

  • Page 19: Desktop Lto-2 Half-Height Tape Drive Quick Start

    Use the following procedure to install desktop LTO-2 Half-Height Tape Desktop LTO-2 Drive. Print this page and check each step as you complete it. If you need Half-Height Tape more information about a step, turn to the section referenced in the step.

  • Page 20: Chapter 2 Installation And Quick Start Unpacking And Inspection

    • Install LVD drives only in an LVD environment. Do not mix LVD and HVD devices on the same SCSI bus. LTO-2 Half-Height Tape Drive User’s Guide...

  • Page 21: Drive Installation Instructions

    • Due to the speed of the LTO-2 Half-Height Tape Drive, it is recommended that a maximum of one LTO-2 drive be connected to one channel on a host SCSI adapter. Drive Installation Instructions After unpacking and inspecting your shipping containers and reviewing...

  • Page 22: Chapter 2 Installation And Quick Start Installing An Internal Lto-2 Half-Height Tape Drive

    SCSI ID of 6. If another SCSI device in the SCSI chain is using this ID, use jumper pins 1–2, 3–4, 5–6, and 7–8 to change the SCSI ID of the LTO-2 Half-Height Tape Drive (see figure 2 Note: LTO-2 Half-Height Tape Drive User’s Guide...

  • Page 23: Figure 2 Internal Lto-2 Half-Height Tape Drive Jumper Settings

    SCSI ID bit 2 SCSI ID bit 3 9-10 Reserved 11-12 Termination Power LTO-2 Half-Height Tape Drive User’s Guide Installing an Internal LTO-2 Half-Height Tape Drive Drive Configuration Jumper Pins Drive Configuration Jumper Pins Chapter 2 Installation and Quick Start Jumper Settings...

  • Page 24: Table 1 Scsi Ids And Jumper Settings For Lto-2 Half-Height In Drive

    LTO-2 Half-Height in SCSI ID Drive 6 (default) Terminator Power By default, terminator power is disabled on the internal LTO-2 Half-Height Tape Drive. To enable terminator power, place a jumper across pins 11 and 12. Note: LTO-2 Half-Height Tape Drive User’s Guide Jumpers 1–2...

  • Page 25: Mounting The Internal Tape Drive

    You can mount the internal LTO-2 Half-Height Tape Drive either Mounting the horizontally or vertically (see Internal Tape Drive • If you mount the drive vertically, the side of the drive should be within 5 degrees of horizontal. • If you mount the drive horizontally, the base of the drive must be within 15 degrees of horizontal and the drive must be right-side up.

  • Page 26: Figure 4 Internal Lto-2 Half-Height Tape Drive Mounting Dimensions

    Chapter 2 Installation and Quick Start Installing an Internal LTO-2 Half-Height Tape Drive Figure 4 Internal LTO- 2 Half-Height Tape Drive Mounting Dimensions BEZEL THICKNESS 47.4 52.9 4X M3.0 X 5.0 LTO-2 Half-Height Tape Drive User’s Guide INCLUDING CONNECTORS 2X M3.0 NEARSIDE THIS HOLE M3.0 x 2.5...

  • Page 27: Connecting A Scsi Cable

    The internal LTO-2 Half-Height Tape Drive has an Ultra3 SCSI interface, Connecting a SCSI terminated by an LVD SCSI connector. Use the following procedure to Cable connect a SCSI cable to this connector. 1 Turn off all power to the drive and the computer.

  • Page 28: Checking The Scsi Termination

    Chapter 2 Installation and Quick Start Installing an Internal LTO-2 Half-Height Tape Drive By default, the internal LTO-2 Half-Height Tape Drive does not provide Checking the SCSI SCSI termination. If you use this default setting, you must place a SCSI...

  • Page 29: Connecting A Power Cable

    For your convenience, you can register your drive through our Web site at: www.quantum.com/registration. LTO-2 Half-Height Tape Drive User’s Guide Installing an Internal LTO-2 Half-Height Tape Drive Description Ground Sense...

  • Page 30: Chapter 2 Installation And Quick Start Installing A Desktop Lto-2 Half-Height Tape Drive

    Installing a Desktop LTO-2 Half-Height Tape Drive Installing a Desktop LTO-2 Half-Height Tape Drive The desktop LTO-2 Half-Height Tape Drive is a compact subsystem that connects to the host computer through a SCSI port. Installing a desktop drive involves the following steps:...

  • Page 31: Checking The Scsi Termination

    If the desktop LTO-2 Half-Height Tape Drive is the last or only device in Checking the SCSI a SCSI chain, install a 68-pin LVD terminating plug on the unused SCSI Termination connector. See Note: Figure 7 SCSI Termination Examples for the Desktop LTO-2...

  • Page 32: Registering Your Tape Drive

    Chapter 2 Installation and Quick Start Installing a Desktop LTO-2 Half-Height Tape Drive After you install the desktop tape drive, be sure to register it. Registering Registering Your your drive ensures that you will receive the latest information about your Tape Drive drive, as well as other product, service, and support information.

  • Page 33: Chapter 3 Operation

    This chapter describes how to operate the LTO-2 Half-Height Tape Drive. Topics covered in this chapter are: • Understanding the Front Panel Display • Blink Codes • Using LTO Cartridges • Drive Maintenance LTO-2 Half-Height Tape Drive User’s Guide Chapter 3...

  • Page 34: Understanding The Front Panel Display

    Error • Status Activity about the tape drive, see LTO-2 Half-Height Tape Drive User’s Guide shows a generalized view of the LTO-2 Half-Height Tape Drive LED (green) LED (green) LED (orange) LED (amber) , and LEDs blink or go on to indicate information...

  • Page 35: Blink Codes

    Power On Self Test (POST) in progress Cleaning failure or media error Microcode download Microcode download error LTO-2 Half-Height Tape Drive User’s Guide below summarizes the blink codes for the LTO-2 Half-Height Activity LED (Green) Slow Slow Slow Slow Fast...

  • Page 36: Using Lto Cartridges

    • Slow • Fast Using LTO Cartridges To load an Ultrium cartridge into the LTO-2 Half-Height Tape Drive, Loading a place the cartridge in the slot and then do one of the following: Cartridge • Continue to push the cartridge the rest of the way into the drive.

  • Page 37: Cartridge Care And Maintenance

    Then retension the tape to allow the tape pack to become stable for better performance. LTO-2 Half-Height Tape Drive User’s Guide LTO cartridges have prewritten servo patterns and should not be bulk erased.

  • Page 38: Chapter 3 Operation Drive Maintenance

    In this case, the drive may experience excessive errors while reading or writing, and the amber continuously during operation. This means that the drive heads need to be cleaned. LTO-2 Half-Height Tape Drive User’s Guide LED remains on Status...
  • Page 39 • All of the tape on the cleaning cartridge has been used up (at EOT). In this case, the while the LED remains on. Drive LTO-2 Half-Height Tape Drive User’s Guide Chapter 3 Operation Drive Maintenance LEDs remain lit. After the Drive...
  • Page 40 Chapter 3 Operation Drive Maintenance LTO-2 Half-Height Tape Drive User’s Guide...

  • Page 41: Chapter 4 Theory

    • Data Compression Track Layout With the LTO-2 Half-Height Tape Drive, there are 512 data tracks on the LTO tape, numbered 0 through 511. • Data track 511 is the track closest to the bottom edge of the tape (the reference edge).

  • Page 42: Figure 10 Layout Of Tracks On Lto Ultrium Tapes

    Tapes Beginning of tape (BOT) LTO-2 Half-Height Tape Drive User’s Guide There are 4 data bands, each of which includes 128 data tracks. The data bands are numbered 2,0,1,3. Data band 2 is closest to the bottom edge of the tape.

  • Page 43: Chapter 4 Theory Recording Method

    The error rate of the LTO-2 Half-Height Tape Drive is less than 1 hard error in 10 The use of Cyclic Redundancy Checking (CRC), two-level orthogonal...

  • Page 44: Chapter 4 Theory Data Integrity

    ECC co-processor hardware. LTO-2 Half-Height Tape Drive User’s Guide If the C1 ECC correction engine can correct the error, then the corrected bytes are written to memory, and the Valid bit is set.

  • Page 45: Chapter 4 Theory Data Compression

    Because these smaller symbols are substituted for the longer strings of data, more data can be stored in the same physical space. Some important benefits result from data compression in tape drives: LTO-2 Half-Height Tape Drive User’s Guide Chapter 4 Theory Data Compression...

  • Page 46: Data Compression Considerations

    The transfer rate depends on factors such as: • Compression ratio • Drive buffer size • Host computer input/output (I/O) speed • Effective disc speeds of the host computer • Record lengths that the host computer transmits LTO-2 Half-Height Tape Drive User’s Guide...

  • Page 47: Intelligent Data Compression

    Software data compression should never be used because the LTO-2 Half-Height Tape Drive's built-in intelligent data compression is much more efficient than software data compression systems. The LTO-2 Half-Height Tape Drive uses a derivative of ALDC-2 lossless data compression that includes additional control codes for intelligent data compression.
  • Page 48 Chapter 4 Theory Data Compression LTO-2 Half-Height Tape Drive User’s Guide...

  • Page 49: Chapter 5 Specifications

    This chapter provides technical specifications for the LTO-2 Half-Height Tape Drive. The topics covered in this chapter are: • Physical Specifications • Power Specifications • Drive Performance Specifications • Environmental Requirements • Reliability • Mean Time Between Failures • LTO Cartridge Specifications •...

  • Page 50: Specifications Physical Specifications

    Specifications Specification Height Width Length Weight Figure 11 LTO-2 Half-Height Tape Drive User’s Guide below lists the physical specifications of the LTO-2 Half-Height Internal SCSI Drive without Bezel 1.6 inches (41.0 mm) max 5.75 inches (146.05 ± 0.25) 8.74 inches (222 mm) 3.660 lb.

  • Page 51: Figure 11 Internal Lto-2 Half-Height Tape Drive Dimensions

    Figure 11 Internal LTO-2 Half-Height Tape Drive Dimensions BEZEL THICKNESS 47.4 52.9 LTO-2 Half-Height Tape Drive User’s Guide 226.5 OVERALL LENGTH INCLUDING CONNECTORS 2X M3.0 NEARSIDE THIS HOLE M3.0 x 2.5 2X M3.0 FARSIDE 3X 5.0 79.2 Chapter 5 Specifications Physical Specifications 41.0 MAX...

  • Page 52: Chapter 5 Specifications Power Specifications

    Chapter 5 Specifications Power Specifications Power Specifications The desktop LTO-2 Half-Height Tape Drive comes with a built-in 90- 260VAC (47-63 Hz) automatic switching power supply. Maximum voltage and power specifications for the internal LTO-2 Half-Height Tape Drive are listed in...

  • Page 53: Drive Performance Specifications

    (1-5) RMS parameters measured at the power connector using a nominal voltages of 5.0V and 12.0V unless stated otherwise. lists the performance specifications for the LTO-2 Half-Height Chapter 5 Specifications Drive Performance Specifications LTO-2...

  • Page 54: Table 7 Drive Performance Specification

    Recording undetectable errors Tape drive type Head configuration Recording format Recording method Transfer rate (sustained) Cartridge unload time LTO-2 Half-Height Tape Drive User’s Guide Value 200 Gbytes (native) 100 Gbytes (native) 50 Gbytes (native) 30 Gbytes (native) 10 Gbytes (native)

  • Page 55: Environmental Requirements

    <136 seconds 68 seconds 136 seconds < 76 seconds Up to 3.48 meters per second lists the environmental specifications for the LTO-2 Half-Height Operational +50° to +104°F (+10° to + 40°C) Internal: 9 CFM (front to back) 11°C per hour (10-40°C)

  • Page 56: Chapter 5 Specifications Reliability

    0 V at the power connector at any frequency between 45 Hz and 20 MHz. Reliability The LTO-2 Half-Height Tape Drive is designed for maximum reliability and data integrity. LTO-2 Half-Height Tape Drive User’s Guide Operational max 10,000 feet MSL (at 25°C)

  • Page 57: Table 9 Reliability

    The MTBF for the desktop drive power supply is 50,000 hours with the unit operated at full load and 25°C. Note: LTO-2 Half-Height Tape Drive User’s Guide Description < 1 in 10 • Error correction code techniques (C1 and C2 ECC) •...

  • Page 58: Chapter 5 Specifications Lto Cartridge Specifications

    The MTTR for LTO products is less than 0.5 hour (30 minutes). The Quantum LTO drives are field-replaceable units. If a problem occurs with a subassembly or component in the drive, you should replace the entire unit. Return the drive to the factory in its original packaging.

  • Page 59: Cartridge Memory

    (NOM), similar to UL EU member nations Comité Europèen de Normalisation Electrotechnique – the European Committee for Electrotechnical Standardization (CENELEC) LTO-2 Half-Height Tape Drive User’s Guide Chapter 5 Specifications Regulatory Compliance for additional cartridge information and Compliant to: UL/CSA 60950-1 NOM standards...
  • Page 60 Germany, Hungary, India, Ireland, Israel, Italy, Japan, (South) Korea, Netherlands, Norway, Poland, Russian Federation, Singapore, Slovakia, Slovenia, South Africa, Spain, Switzerland, United Kingdom, USA, Yugoslavia. LTO-2 Half-Height Tape Drive User’s Guide Compliant to: CB Scheme per IEC 60950-1 with details and exceptions for each...

  • Page 61: Emc Compliance

    Inspection and Quarantine (BSMI) China CNCA Russia GOSSTANDART (GOST) Israel Note: LTO-2 Half-Height Tape Drive User’s Guide Compliant to: Title 47: Code of Federal Regulations, Part 15, Subpart B, Class B: Digital Device (47CFR15B) ICES-003 Class B: Digital Apparatus Emissions per CISPR 22, EN55022...

  • Page 62: Chapter 5 Specifications Disposal Of Electrical And Electronic Equipment

    Low Voltage (SEC) for UL and CSA, and Safety Extra Low Voltage for BSI and VDE (if applicable). Disposal of Electrical and Electronic Equipment LTO-2 Half-Height Tape Drive User’s Guide This symbol on the product or on its packaging indicates that this product should not be disposed of with your other waste.

  • Page 63: Chapter 6 Unix Settings

    This chapter describes how to configure various UNIX systems to recognize and obtain optimal performance from the LTO-2 Half-Height Tape Drive. The topics covered in this chapter are: • A Word About SCSI Controllers • Configuring for the DEC/Compaq UNIX Environment •...

  • Page 64: A Word About Scsi Controllers

    A Word About SCSI Controllers A Word About SCSI Controllers The LTO-2 Half-Height Tape Drive transfers data at 40Mbytes per second, with 2:1 compression of the data. The drive supports the SCSI Ultra3 specification and can transfer data at burst rates of up to 160 Mbytes per second.

  • Page 65: Configuring Digital Unix Version 4.0 And Later/Compaq Tru64 Unix 5.X

    Save the file. Then run the following command: ddr_config-c ddr_config database. This command takes effect immediately, without having to rebuild the kernel. Note: LTO-2 Half-Height Tape Drive User’s Guide Configuring for the DEC/Compaq UNIX Environment CMD_PreventAllow=supported CMD_ExtReserveRelease=supported BlockSize=0 PwrMgmt_capable=0 takes the default input file, ddr.dbase, and builds a new device ddr.dbase is a UNIX shell script and is not written in C.

  • Page 66: Configuring For The Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, And 9)

    In this case, the LTO-2 Half-Height Tape Drive can be set for SCSI ID address 2 through 6 and attached to controller ithps1 (this particular controller also supports SCSI addresses 8 through 15).

  • Page 67: Configuring The Device File St.conf

    We recommend that the LTO-2 Half-Height Tape Drive not be attached to esp controllers. This controller is not fast enough to work with the LTO-2 Half-Height Tape Drive. The minimum recommended controller would be a glm controller, which is an Ultra Wide controller.

  • Page 68: Configuring For The Ibm Aix Environment (Aix Version 4.1.X And Later)

    Finding Existing target IDs known to the system. Note the SCSI target IDs and choose a SCSI Controllers SCSI ID for the LTO-2 Half-Height Tape Drive that will not conflict with and Devices the IDs shown from the lsdev command.
  • Page 69 7 Click and the drive will be installed in the system database, and devices created. There is no need to reboot the system. LTO-2 Half-Height Tape Drive User’s Guide Chapter 6 UNIX Settings smit tape lines at the default value.

  • Page 70: Configuring For Sco Open Server 5.0.X

    SMIT We suggest using the AIX commands Note: when transferring data to and from the LTO-2 Half- Height Tape Drive. These commands transfer data more quickly than other commands such as tar and cpio. • For cpio we suggest a blocking factor of 128.

  • Page 71: Configuring The Lto-2 Half-Height Tape Drive With Mkdev

    A numeric-based menu appears. If you are replacing an existing SCSI tape drive, use option 3 to remove the existing tape drive from the configuration files. Then follow the instructions below to add an LTO-2 Half-Height Tape Drive. 1 From the menu, choose 2 From the next menu, choose 3 When prompted, enter the SCSI adapter string.

  • Page 72: Chapter 6 Unix Settings Configuring For Linux

    16 When asked if you want the kernel environment to be rebuilt press 17 Reboot the system. Note: Note: Configuring for Linux Before installing the LTO-2 Half-Height Tape Drive, ensure that the Finding Existing requisite SCSI controllers and device drivers are installed on your system. SCSI Controllers and Devices...

  • Page 73: Using The Lto-2 Half-Height Tape Drive

    | grep tape You should see output similar to: Detected SCSI tape st0 and scsi0 . . . The LTO-2 Half-Height Tape Drive can be configured via the Using the LTO-2 command options and a default configuration can be setup using the Half-Height Tape ‘stsetoptions’...

  • Page 74: Configuring For Sgi Irix

    1 - 5 and 8 - 15 on controller 1 (this controller supports Wide/Ultra SCSI) Note: To attach the LTO-2 Half-Height Tape Drive to IRIX the file .scsi. needs to Modifying the IRIX be modified by a text editor. The file can be found in...

  • Page 75: Chapter 6 Unix Settings Configuring For Hp-Ux

    Attaching the LTO- SCSI devices on your SCSI controller. 2 Half-Height Tape installation for the LTO-2 Half-Height Tape Drive. Attach the LTO-2 Drive Half-Height Tape Drive and apply power to the drive(s) and the host system. After the boot process completes and you log in as superuser, issue the command: ioscan –C tape –f.
  • Page 76 After performing the insf and mksf commands, use the command ioscan –fn | grep –C tape showing the hardware and device addressing and also the device name attached to the LTO-2 Half-Height Tape Drive. LTO-2 Half-Height Tape Drive User’s Guide is the data under H/WPath from the ioscan.

  • Page 77: Chapter 7 Troubleshooting Guide

    Installation Best Practices • Troubleshooting Suggestions Installation Best Practices When installing an LTO-2 Half-Height Tape Drive, follow SCSI best Follow SCSI Best practices to ensure trouble-free installation and operation. Practices We strongly recommend that you attach the LTO-2 Half-Height Tape...

  • Page 78: Adding The Tape Drive

    HBA and that there are no conflicts with other adapters. We recommend that the LTO-2 Half-Height Tape Drive be attached to a Adding the Tape dedicated SCSI HBA. In addition to enabling the best performance for...

  • Page 79: Troubleshooting Suggestions

    • If the tape drive is not recognized during the SCSI controller scan, check the LTO-2 Half-Height Tape Drive User’s Guide If the system boots normally, then there is a problem with the SCSI HBA. Otherwise, ensure that SCSI HBA is compatible with system, does not have burnt components.
  • Page 80 If the tape drive LEDs indicate that the drive check the following connections: Internal tape drive: LTO-2 Half-Height Tape Drive User’s Guide LED is not illuminated, check the power connections to Power 1 Power down the system and reseat the power connector on tape drive.

  • Page 81: Tape Drive Recognized During System Boot But Not By Operating

    One method is to open a terminal window and issue the following command from the root directory: LTO-2 Half-Height Tape Drive User’s Guide 6 If these suggestions do not help, the tape drive may be bad and Technical Support should be contacted.

  • Page 82: Problems With Tape Drive And Cartridge

    LED activity. All LEDs should be off approximately 20 to 30 seconds after the tape drive reboots. 6 If the Support. LTO-2 Half-Height Tape Drive User’s Guide LED is illuminated but other LEDs are on or flashing. Power LEDs are on, contact Technical...
  • Page 83 3 minutes). If the tape ejects, the problem has been resolved. 5 If a message similar to the following appears when the eject button is pushed, use the mt offline LTO-2 Half-Height Tape Drive User’s Guide Chapter 7 Troubleshooting Guide Troubleshooting Suggestions table 3...
  • Page 84 7 If the “ flashing after the tape drive is rebooted, the tape may be stuck. Contact Technical Support. LTO-2 Half-Height Tape Drive User’s Guide In UNIX/Linux the above message may not appear, but Note: the operating system may still prevent the tape drive from...

  • Page 85: Chapter 7 Troubleshooting Guide Emergency Reset And Emergency Cartridge Eject

    Restore Problems During Backup/Restore Operations A Backup failure can be caused by various reasons. The LTO-2 Half- Backup Failures Height Tape Drive supports the TapeAlert standard. The following troubleshooting steps start when software logs a TapeAlert message. You can view the TapeAlert message either on the main console screen or in the backup software’s log file.
  • Page 86 Remove the cleaning tape after the cleaning tape ejects and restart the backup. If backup is successful, the tape drive and tape are satisfactory. LTO-2 Half-Height Tape Drive User’s Guide message or backup log shows, TapeAlert A media error occurred during write or read...

  • Page 87: Tape Is Write Protected

    1 If either of the following messages appears: Miscellaneous TapeAlert “The tape drive has a hardware fault”: Messages LTO-2 Half-Height Tape Drive User’s Guide Problems During Backup/Restore Operations . If the tape drive passes the diagnostic write/read message. The message can be viewed either on the...
  • Page 88 1. Do not use this cleaning cartridge in this drive. 2. Wait for the current operation to finish. 3. Then use a valid cleaning cartridge.” LTO-2 Half-Height Tape Drive User’s Guide Restart the operation. Turn the tape drive off and then on again.

  • Page 89: Slow Backups

    There are many factors that can make backups appear to be “slow.” To Slow Backups achieve the highest possible transfer rate, the LTO-2 half-height tape drive MUST be attached to a Low Voltage Differential ( LVD ) SCSI controller capable of a minimum of 80 MB/s and MUST not share the same SCSI bus as another active SCSI device such as hard drives.
  • Page 90 200k bytes are slower than backups where the average file size is greater than 200k bytes. Obtain backup log files to determine number of files and average file size. LTO-2 Half-Height Tape Drive User’s Guide WILL OVERWRITE DATA ON THE TAPE...

  • Page 91: Index

    23 ejecting 71 loading 22 specifications 44 troubleshooting 68 unloading 22 write-protecting 22 LTO-2 Half-Height Tape Drive User’s Guide Index Cautions, internal drives 6 Checking SCSI termination desktop drives 17 internal drives 14 Cleaning a tape drive 24...
  • Page 92 External drives quick start 5 Features 2 Front panel display 20 drive performance 39 LTO-2 Half-Height Tape Drive User’s Guide Guidelines, internal drives 6 HP-UX 11.0 settings 61 IBM AIX 4.1.x and later settings 54 Injected noise 42 Inspection 6...
  • Page 93 15 Power specifications 38 Quick start desktop drives 5 external drives 5 internal drives 4 LTO-2 Half-Height Tape Drive User’s Guide Recording method 29 Registering tape drive 15 Regulatory compliance 45 Reliability 42 Reset, emergency 71 SCO Open Server 5.0.x Unix settings...
  • Page 94 DEC/Compaq Unix 50 SCO Open Server 5.0.x 56 Sun (Solaris 2.4, 2.5, 2.6, 7, 8, 9) 52 Unloading a cartridge 22 Unpacking 6 recognize tape drive 65 operating system or application LTO-2 Half-Height Tape Drive User’s Guide Write-protecting a cartridge 22...

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