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Sun Microsystems StorEdge L280 Manual

Sun Microsystems StorEdge L280 Manual

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Sun
StorEdge
L280 Service
™
™
Manual
Autoloader/Library Tape Storage
A Sun Microsystems, Inc. Business
901 San Antonio Road
Palo Alto, CA 94303-4900 USA
1 650 960-1300
fax 1 650 969-9131
Part No. 805-3958-10
Revision A, February 1998
Send comments about this document to: smcc-docs@sun.com

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  • Page 1 StorEdge L280 Service ™ ™ Manual Autoloader/Library Tape Storage A Sun Microsystems, Inc. Business 901 San Antonio Road Palo Alto, CA 94303-4900 USA 1 650 960-1300 fax 1 650 969-9131 Part No. 805-3958-10 Revision A, February 1998 Send comments about this document to: smcc-docs@sun.com...
  • Page 2 Sun, Sun Microsystems, the Sun logo, AnswerBook, Java, the Java Coffee Cup logo, and Solaris are trademarks, registered trademarks, or service marks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International, Inc.
  • Page 3 FCC radio frequency emission limits. Networking connections can be made using unshielded twisted-pair (UTP) cables. Modifications: Any modifications made to this device that are not approved by Sun Microsystems, Inc. may void the authority granted to the user by the FCC to operate this equipment.
  • Page 4 DOC Class A Notice - Avis DOC, Classe A This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. DOC Class B Notice - Avis DOC, Classe B This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
  • Page 5 Do not connect the power cord when the Modifications to Equipment power supply has been removed from the system chassis. Do not make mechanical or electrical modifications to the equipment. Sun Microsystems is not responsible for regulatory compliance of a modified Sun product.
  • Page 6 Sie das Netzkabel nicht an, wenn das Netzteil aus der Nehmen Sie keine mechanischen oder elektrischen Systemeinheit entfernt wurde. Änderungen an den Geräten vor. Sun Microsystems, übernimmt bei einem Sun-Produkt, das geändert wurde, keine Verantwortung für die Einhaltung behördlicher StorEdge L280 Service Manual • February 1998...
  • Page 7 Modification du matériel d’alimentation lorsque le châssis du système n’est Ne pas apporter de modification mécanique ou électrique au plus alimenté. matériel. Sun Microsystems n’est pas responsable de la conformité réglementaire d’un produit Sun qui a été modifié. Safety Agency Compliance Statements...
  • Page 8 En espera. Modificaciones en el equipo No realice modificaciones de tipo mecánico o eléctrico en el equipo. Sun Microsystems no se hace responsable del cumplimiento de las normativas de seguridad en los equipos Sun modificados.
  • Page 9 La siguiente advertencia se aplica solamente a equipos con un interruptor de encendido que tenga una posición "En espera": Precaución – El interruptor de encendido de este producto funciona exclusivamente como un dispositivo de puesta en espera. El enchufe de la fuente de alimentación está...
  • Page 10 StorEdge L280 Service Manual • February 1998...
  • Page 12 StorEdge L280 Service Manual • February 1998...

  • Page 13: Table Of Contents

    Contents Preface xxi Getting Started 1-1 Technical Specifications 1-2 1.1.1 Environmental Specifications 1-4 Rackmounting the Autoloader 1-6 1.2.1 Mounting the Autoloader 1-7 1.2.2 Cable Management 1-13 Connecting the Autoloader 1-14 Powering on the System 1-16 Moving or Shipping the Autoloader 1-17 1.5.1 Moving the Autoloader 1-17 1.5.2...
  • Page 14 Setting or Viewing SCSI IDs 4-4 4.4.1 Setting SCSI IDs 4-4 4.4.2 Viewing SCSI IDs 4-5 Cleaning the Autoloader Tape Drive 4-6 Configuring the Autoloader 4-7 Retrieving Autoloader Information 4-9 Running an Internal Test 4-10 StorEdge L280 Service Manual • February 1998...
  • Page 15 Drive Cleaning Errors 4-12 4.10 Understanding Error Messages 4-13 4.10.1 Field Replaceable Units (FRUs) 4-14 4.10.2 Recovery 4-14 4.11 Troubleshooting 4-19 Removal and Replacement 5-1 Replacing a Unit 5-2 Replacing the DLT Drive 5-4 5.2.1 Reassembly 5-6 Removing Stuck Tapes 5-7 5.3.1 Tape Stuck in Transport 5-7 5.3.2...
  • Page 16 StorEdge L280 Service Manual • February 1998...
  • Page 17 Figures Rack Kit Parts 1-6 FIGURE 1-1 Screw Installation 1-7 FIGURE 1-2 Customizing the Rack Depth 1-8 FIGURE 1-3 Shelf Installation 1-9 FIGURE 1-4 Tightening the Screws 1-10 FIGURE 1-5 Filler Panel Installation 1-11 FIGURE 1-6 Securing the Autoloader 1-12 FIGURE 1-7 Cable Management 1-13 FIGURE 1-8...
  • Page 18 Screw Locations 5-4 FIGURE 5-3 Drive Cables 5-5 FIGURE 5-4 Drive Motor Assembly 5-9 FIGURE 5-5 Ejecting the Tape 5-10 FIGURE 5-6 Rewinding a Stuck Tape 5-11 FIGURE 5-7 xviii StorEdge L280 Service Manual • February 1998...
  • Page 19 Tables Physical Specifications of the Autoloader 1-2 TABLE 1-1 Autoloader/Drive Characteristics 1-3 TABLE 1-2 Environmental Specifications 1-4 TABLE 1-3 Description of Rear Panel Connections 1-14 TABLE 1-4 Description of Rear Panel Connections 1-15 TABLE 1-5 Reliability 2-4 TABLE 2-1 Control Panel 3-6 TABLE 3-1 Top-Level Menu Options 3-9 TABLE 3-2...
  • Page 20 Solenoid Mechanism 5-10 TABLE 5-3 xx StorEdge L280 Service Manual • February 1998...

  • Page 21: Preface

    Preface The Sun™ StorEdge™ L280 Service Manual provides installation, operation, and troubleshooting information for the Sun™ StorEdge™ L280 system, which is an eight- cartridge Digital Linear Tape (DLT)™ Autoloader with differential SCSI interface. These instructions are designed for an experienced system administrator with networking knowledge.
  • Page 22 To delete a file, type rm filename. Shell Prompts Shell Prompts TABLE P-2 Shell Prompt C shell machine_name% C shell superuser machine_name# Bourne shell and Korn shell Bourne shell and Korn shell superuser xxii StorEdge L280 Service Manual • February 1998...
  • Page 23 Welcome Mat Poster 805-4005-xx Ordering Sun Documents SunDocs is a distribution program for Sun Microsystems technical documentation. Contact SunExpress for easy ordering and quick delivery. You can find a listing of available Sun documentation on the World Wide Web. SunExpress Contact Information...
  • Page 24 We are interested in improving our documentation and welcome your comments and suggestions. You can email your comments to us at smcc-docs@sun.com. Please include the part number of your document in the subject line of your email. xxiv StorEdge L280 Service Manual • February 1998...

  • Page 25: Getting Started

    C H A P T E R Getting Started This chapter explains the following: Understanding technical specifications Knowing the product components Installing the Autoloader Connecting the Autoloader Powering on the Autoloader Moving or shipping the Autoloader...

  • Page 26: Technical Specifications

    220 mm (8.65 inches) Depth 559 mm (22 inches) 559 mm (22 inches) Gross shipping weight 19.3 kg (42.5 lbs.) 17.7 kg (38.9 lbs.) Interface SCSI-2 high density wide SCSI-2 high density wide differential differential StorEdge L280 Service Manual • February 1998...
  • Page 27 details the performance of the Autoloader and drive. TABLE 1-2 Autoloader/Drive Characteristics TABLE 1-2 Description Performance Autoloader characteristics Average tape access time 11 seconds Average tape exchange time 22 seconds Drive characteristics Sustained transfer rate 5 MB/s (10 MB/s with data compression, assuming 2/1 compression) Peak transfer rate...

  • Page 28: Environmental Specifications

    0.21 g rms (random) Non-operating 2.1 g rms (random) Non-operating 0.5 g (0 to peak, swept-sine wave) Product certification Safety UL 1950, CSA 950, TUV IEC 950 Emissions FCC Class “B” CISPR 22, Class “B” StorEdge L280 Service Manual • February 1998...
  • Page 29 Environmental Specifications TABLE 1-3 Characteristic Autoloader Power source AC power voltage: 100-127V or 200-240V (Auto Ranging) Current Rating: 100-127V, 1.8A, 50/60 HZ , 220-240V, .9A, 50/60 HZ Auto Ranging Power Maximum: 120 Watts Maximum Watts: 100 Watts, 100-127V (60 HZ) Maximum Watts: 90 Watts, 200-240V (50 HZ) Air quality Minimal particulate contamination.

  • Page 30: Rackmounting The Autoloader

    3. M4 x 10-mm pan phillips (Quantity 6) 7. Filler panel (Quantity 1) 4. 10-32 pan phillips (Quantity 10) 8. Shelf and rail assembly (Quantity 1) Note – The rack kit will contain extra parts. Rack Kit Parts FIGURE 1-1 StorEdge L280 Service Manual • February 1998...

  • Page 31: Mounting The Autoloader

    1.2.1 Mounting the Autoloader 1. Facing the front of the rack and using the Rackmount Placement Matrix (part number: 805-6945-xx), hold the bezel in the specified position and install and tighten four 10-32 screws ( FIGURE 1-2 Note – Your rack structure might look different from the illustrations. If you have a rack that does not have threaded screw holes, install the clipnuts in the same position, then install the screws.
  • Page 32 Loosely thread a screw into the 34-inch depth holes, as well as the corresponding holes near the shelf backstop. Do not tighten the screws until you install the shelf ( FIGURE 1-3 Customizing the Rack Depth FIGURE 1-3 StorEdge L280 Service Manual • February 1998...
  • Page 33 4. Slide the shelf through the back of the rack until the front lip is over the bezel and the rear portion of the shelf slides over the back screws ( FIGURE 1-4 Shelf Installation FIGURE 1-4 Tip – Have a second person stand at the front of the rack to help guide the front lip of the shelf between the slots on the bezel.
  • Page 34 ( FIGURE 1-5 a. Tighten the four screws on the shelf. b. Tighten the four screws on the back of the rack. Tightening the Screws FIGURE 1-5 1-10 StorEdge L280 Service Manual • February 1998...
  • Page 35 6. Decide on the location for the Autoloader. If you are installing one Autoloader, you will insert the filler panel on the opposite side of the support bezel FIGURE 1-6 7. Align the filler panel to the edge of the support bezel and insert it up into the slot. The tabs on the bottom of the filler panel should fit into the corresponding slots on the shelf.
  • Page 36 Note – Save remaining screws for a possible second Autoloader installation. Securing the Autoloader FIGURE 1-7 Caution – Be certain that the ambient of the rack cabinet does not exceed the maximum room ambient of 104 F or 40 1-12 StorEdge L280 Service Manual • February 1998...

  • Page 37: Cable Management

    1.2.2 Cable Management Caution – Ensure that SCSI and power cables are properly routed and secured on rackmounted Autoloaders so that they do not interfere with other moveable rackmounted products. Failure to properly route cables could damage them. 1. After connecting the external cables in Section 1.3, "Connecting the Autoloader," on page 1-14, thread a cable tie through the metal rail inside the rack ( FIGURE 1-8 2.

  • Page 38: Connecting The Autoloader

    5. Ensure the SCSI terminator is installed as shown in FIGURE 1-9 FIGURE 1-10 Autoloader as the Only Peripheral FIGURE 1-9 Description of Rear Panel Connections TABLE 1-4 SCSI cable to host SCSI port SCSI jumper cable SCSI terminator (differential) 1-14 StorEdge L280 Service Manual • February 1998...
  • Page 39 Autoloader With Other Peripherals FIGURE 1-10 Description of Rear Panel Connections TABLE 1-5 SCSI cable to host SCSI port SCSI jumper cable SCSI cable to next device SCSI terminator (differential) 6. Make sure the standby (power) switch on the autoloader control panel is switched off, and connect the socket end of the power cord into the power port on the autoloader rear panel.

  • Page 40: Powering On The System

    Set SCSI IDs as required. See Section 4.4.1, “Setting SCSI IDs,” on page 4-4. 4. Turn on the host or system. 5. Boot system up and load backup software to begin the backup operation. 1-16 StorEdge L280 Service Manual • February 1998...

  • Page 41: Moving Or Shipping The Autoloader

    Moving or Shipping the Autoloader 1.5.1 Moving the Autoloader 1. Verify that a tape is not in the drive. If using a software application to manage files in the Autoloader, check the software documentation for instructions on removing tapes. If not using a software application, use the UNLOAD top-level menu option. If the drive is loaded with a tape, unload it before moving the Autoloader.
  • Page 42 7. Connect the Autoloader to the host. See Section 1.3, "Connecting the Autoloader," on page 1-14. 8. Configure the Autoloader to the host. Note – Refer to the host system manuals for configuration information. 1-18 StorEdge L280 Service Manual • February 1998...

  • Page 43: Shipping The Autoloader

    1.5.2 Shipping the Autoloader 1. Verify that a tape is not in the drive. If using a software application to manage files in the Autoloader, check the software documentation for instructions on removing tapes. If not using a software application, use the UNLOAD top-level menu option. If the drive is loaded with a tape, unload it before moving the Autoloader.
  • Page 44 1-20 StorEdge L280 Service Manual • February 1998...

  • Page 45: Theory Of Operation

    C H A P T E R Theory of Operation Overview The DLT Autoloader is optimized for automated backup of servers or systems requiring data backups up to 280 Gbytes native capacity or 560 Gbytes compressed. The Autoloader comes with one DLT 7000 drive with a differential SCSI interface and eight storage slots for tape cartridges.

  • Page 46: Autoloader Components

    See Section 2.1.8, “Autoloader Electronic Connections,” on page 2-7 for more information. Caution – Power is not turned off to the transport controller and the transport. StorEdge L280 Service Manual • February 1998...
  • Page 47 2.1.3.6 Removable Magazine The magazine holds six tapes that are held in place with a latching mechanism. Pushing the tape in causes the mechanism to latch and lock the tape in place. A second push on the tape releases the tape. The magazine also has a handle for carrying.

  • Page 48: Reliability

    Random mode: Allows random access to tapes per command to the Autoloader. 2.1.7 Autoloader Firmware The autoloader firmware consists of the following five modules ( FIGURE 2-1 page 2-5): Interface manager Front panel manager Diagnostics manager Motion manager Transport motion controller StorEdge L280 Service Manual • February 1998...
  • Page 49 Host Computer User Front Panel Interface Manager Manager Diagnostic Motion Manager Manager Transport Motion Controller How Autoloader Firmware Interacts FIGURE 2-1 2.1.7.1 Interface Manager The interface manager is responsible for handling all commands sent from a host computer to the Autoloader. The commands are sent using a differential SCSI interface, which conforms to the SCSI-2 specifications.
  • Page 50 2.1.7.5 Transport Motion Controller The transport motion controller controls the loader, which performs individual move steps. StorEdge L280 Service Manual • February 1998...

  • Page 51: Autoloader Electronic Connections

    2.1.8 Autoloader Electronic Connections shows the electronic (interface) connections. FIGURE 2-2 Host computer Front panel Autoloader controller SCSI BUS Transport controller DLT Drive +5/+12 Switched Power switch Standby switch Interface Overview FIGURE 2-2 Chapter 2 Theory of Operation...
  • Page 52 StorEdge L280 Service Manual • February 1998...

  • Page 53: Product Operation And Configuration

    C H A P T E R Product Operation and Configuration Chapter Overview This chapter explains how to: Load and remove tapes Operate the control panel Interpret display window messages Understand top-level menu options...

  • Page 54: Loading/Unloading Tape Cartridges Into The Autoloader

    Next Prev EMPTY DRIVE YES then press Enter will be displayed for up to two minutes, followed by UNLOADING DRIVE DOOR RELEASED 4. Gently pull on the door handle to open. StorEdge L280 Service Manual • February 1998...

  • Page 55: Inserting Or Removing The Magazine

    3.2.3 Inserting or Removing the Magazine 1. Swing the handle forward. 2. Pull the magazine straight out ( , part no. F370-3422-01). FIGURE 3-1 Removing the Magazine FIGURE 3-1 Chapter 3 Product Operation and Configuration...

  • Page 56: Loading Tapes

    The latching mechanism will not click since the tab is already engaged. When tapes are “locked” into the magazine, the tapes will not fall out if the magazine is turned. StorEdge L280 Service Manual • February 1998...

  • Page 57: Unloading Tapes

    2. With the write-protect switch facing out of the Autoloader and at the top, load internal slots by pushing the tape in until it “clicks.” The magazine must be removed to load the internal slots ( FIGURE 3-3 Internal Slots FIGURE 3-3 3.

  • Page 58: Autoloader Control Panel

    • Amber: Error. If this occurs, see TABLE 4-7 on page 4-14. Next key Scrolls the display choice forward by one. Control panel keys Used to navigate through the front panel menus. Enter key Selects the option currently displayed. StorEdge L280 Service Manual • February 1998...

  • Page 59: Understanding Display Messages

    Control Panel (Continued) TABLE 3-1 Cancel key Cancels the current selection or brings you from the current menu/function to the previous one. Hold three to five seconds to release the door. Power (standby) switch Located in the bottom-corner of the front access door and puts the unit’s power in Standby mode.

  • Page 60: Drive/Autoloader Status

    See Section 3.5, "Top-Level Menu Options‚" on page 3-9. The status of the drive and Autoloader is indicated by the following: LOADER READY LOADER ACTIVE DRIVE IDLE CLEANING WRITING READING REWINDING SEEKING ERASING LOADING UNLOADING NO DRIVE StorEdge L280 Service Manual • February 1998...

  • Page 61: Top-Level Menu Options

    Top-Level Menu Options The menu structure is divided between standard access and password-protected functions. To move through the menu, use the control panel keys. If a menu selection is flashing, press Enter to select that option. The top-level menu contains the following functions. Press Prev Next while the...
  • Page 62 Autoloader or by using the front LOAD/UNLOAD panel menu. Operation: The SCSI interface for the Autoloader in Random mode conforms to the SCSI-2 command specification for tape changer devices. 3-10 StorEdge L280 Service Manual • February 1998...

  • Page 63: Password-Protected Functions

    3.5.1 Password-Protected Functions functions are password protected. ADMIN * 1. Before accessing the following options, enter the password. A default password of 000-000-000 is set at the factory. Change this password when first using the Autoloader. Admin Menu Options TABLE 3-3 Option Function Retrieves performance information stored in the...

  • Page 64: Autoloader Display Menu Tree

    Press Enter to select an option. SENSOR TESTS (See TABLE 4-4 on Press Cancel to go up a level on the menu tree page 4-10)) or hold 3-5 seconds to quick release the door. 3-12 StorEdge L280 Service Manual • February 1998...

  • Page 65: Administration, Diagnostics, And Troubleshooting

    C H A P T E R Administration, Diagnostics, and Troubleshooting Chapter Overview This chapter describes how to: Change an administration menu password View and set SCSI IDs Clean the tape drive Configure the Autoloader Retrieve Autoloader information Run internal tests Interpret drive cleaning errors Interpret error codes Troubleshoot...

  • Page 66: Entering The Administration Menu Password

    5. Press to accept the last set of flashing digits or to change the Enter Next/Prev values. displays. INFO * Press the button until the desired function displays, then press Prev Next Enter StorEdge L280 Service Manual • February 1998...

  • Page 67: Changing The Administration Menu Password

    Changing the Administration Menu Password Tip – Change the administration password before connecting to the host to prevent power cycling during configuration. 1. Complete steps 1 through 6 in Section 4.2, “Entering the Administration Menu Password” on page 4-2. 2. Press the button until displays, and press Next...

  • Page 68: Setting Or Viewing Scsi Ids

    SCSI ID of the drive. is used to save ID DRIVE ID # UPDATE IDS NOW settings. 2. Press Next until the setting to change is displayed, and then press Enter . The current SCSI address flashes. StorEdge L280 Service Manual • February 1998...

  • Page 69: Viewing Scsi Ids

    3. Press the button until the desired address is displayed, and then Next Prev press Enter 4. Press the Next button until is displayed, and press Enter UPDATE IDs NOW One of the following messages is displayed: If the new settings do not conflict with other SCSI IDs on the bus, then IDs SAVED is displayed.

  • Page 70: Cleaning The Autoloader Tape Drive

    In the event of a drive error, such as a serial communications failure, FAILED displays and then the menu is displayed. CLEAN DRIVE * 5. Press Cancel until the next desired operation is displayed. StorEdge L280 Service Manual • February 1998...

  • Page 71: Configuring The Autoloader

    Configuring the Autoloader 1. To configure the Autoloader, press Next to enter the following: ADMIN * / PSWD ### ### ### / CONFIG * 2. In the menu, press until the name of the operation is Next Prev CONFIG * displayed, then press Enter If the selection has multiple settings, the current setting flashes.
  • Page 72 SCSI bus. When set to OFF, the inquiry string for this autoloader model is reported to the SCSI bus. Note: The inquiry string for the product family and model number is currently the same. StorEdge L280 Service Manual • February 1998...

  • Page 73: Retrieving Autoloader Information

    Retrieving Autoloader Information 1. To retrieve autoloader information, enter the following: ADMIN * / PSWD ### ### ### / INFO * When using INFO *, records of the autoloader operation is displayed. The records are called information logs and are described in TABLE 4-3 2.

  • Page 74: Running An Internal Test

    Moves a tape from a random full slot to the transport. The tape is SLOT IO then moved back to its home slot. 4-10 StorEdge L280 Service Manual • February 1998...
  • Page 75 Tests Available From the Control Panel (Continued) TABLE 4-4 Test Name Description CLOSE DRV HANDLE Closes the drive handle. Only one operation is performed, regardless of the loop count chosen. OPEN DRV HANDLE Use this test after performing the REWIND MEDIA test to manually remove tapes.

  • Page 76: Drive Cleaning Errors

    • If the tape can be read, back up data second time. of the cleaning from the damaged cartridge to cartridge.) another tape cartridge, and discard the damaged one. 4-12 StorEdge L280 Service Manual • February 1998...

  • Page 77: Understanding Error Messages

    4.10 Understanding Error Messages When receiving an error code, the display window will display a message similar to the following: DEVICE FAILED ERROR CODE 94H To understand an error code: 1. Press to get a brief description about the error code. Enter 2.

  • Page 78: Field Replaceable Units (Frus)

    TABLE 4-7 Hex Error Probable Cause ROM checksum error. Register error. Microprocessor error. Controlled area of RAM checksum error. RAM test error. SCSI chip error. Library controller chip error. Door is open. 4-14 StorEdge L280 Service Manual • February 1998...
  • Page 79 Error Codes (Continued) TABLE 4-7 Hex Error Probable Cause Invalid test number. Invalid configuration. Need to run test. INVENTORY CHECK Exercise test failed. Elements reserved. Move to. Put magazine in. Get magazine out. Put drive in. Get drive out. Powerfail clear path. Powerfail restore tapes.
  • Page 80 Time out moving the transport to DRIVPOS during a tape unload. Time out finding PUSHPOS 2 during a CARTRIDGE command. UNLOAD Could not unlock the door during an UNLOCK DOOR command. 4-16 StorEdge L280 Service Manual • February 1998...
  • Page 81 Error Codes (Continued) TABLE 4-7 Hex Error Probable Cause Did not find all of the valid slot positions during a SCAN command. MAGAZINE Time out (did not leave a tape type window during a command). SCAN MAGAZINE Time out leaving DRIVPOS during a SCAN MAGAZINE command.
  • Page 82 Undefined error code. UART test failure. Undefined error code. Undefined error code. Undefined error code. Ram error. ROM error. CTC error. Undefined error code. Undefined error code. 4-18 StorEdge L280 Service Manual • February 1998...

  • Page 83: Troubleshooting

    4.11 Troubleshooting For problems that are related to the host or application software, refer to the host system documentation or to the application software instructions. Caution – Consult the system administrator before cycling power. Never cycle power when active devices are connected to the SCSI bus. Pressing the power button when the SCSI system is active can cause data loss or problems with the SCSI interface.
  • Page 84 • Remove a tape from the rear slot. • Close the door and power on. • Power cycle the Autoloader, or run the DO INVENTORY TEST INVENTORY is displayed. test under the menu. CHECK TEST * 4-20 StorEdge L280 Service Manual • February 1998...
  • Page 85 Troubleshooting Table (Continued) TABLE 4-8 Problem What to Do Cannot write to the • Check the host file system access permissions. tape. • Verify that you are using the correct tape type (Type IIIXT & IV). • Check the write-protect tab on the tape to assure write- enabled status.
  • Page 86 4-22 StorEdge L280 Service Manual • February 1998...

  • Page 87: Removal And Replacement

    C H A P T E R Removal and Replacement This chapter explains how to: Replace a unit Replace the drive Remove stuck tapes...

  • Page 88: Replacing A Unit

    Unscrew and remove the four feet. You can lay the unit on its side to remove the feet. Tip – If the cover fits tightly near the display and is not easily removed, pull the sides out near the display panel while rotating the the cover up. StorEdge L280 Service Manual • February 1998...
  • Page 89 Removing the Feet FIGURE 5-1 Removing the Cover FIGURE 5-2 5. Install the cover and feet in the same position as FIGURE 5-1 6. Connect the cabling and terminator on the new unit. See Section 1.3, “Connecting the Autoloader,” on page 1-14 for this procedure. 7.

  • Page 90: Replacing The Dlt Drive

    3. Remove the seven screws on the DLT drive’s rear plate. See for screw FIGURE 5-3 locations. Screw Locations FIGURE 5-3 4. Gently pull out the DLT drive partially, taking care not to damage the cables. StorEdge L280 Service Manual • February 1998...
  • Page 91 5. Disconnect the following four cable connectors, which are labeled in FIGURE 5-4 Note – It is unnecessary to remove the internal SCSI ribbon cable from the back of the DLT drive. Drive Cables FIGURE 5-4 Cable Connectors TABLE 5-1 DLT Drive handle motor Power (DC) DLT Drive to loader...

  • Page 92: Reassembly

    4. Connect the external cables. See Section 1.3, “Connecting the Autoloader,” on page 1-14 for the procedure. 5. Power the unit on. See Section 1.4, “Powering on the System,” on page 1-16 for the procedure. StorEdge L280 Service Manual • February 1998...

  • Page 93: Removing Stuck Tapes

    Removing Stuck Tapes 5.3.1 Tape Stuck in Transport 1. Run the under the * menu. EMPTY TRANSPORT TEST TEST If this fails, go to step 2. 2. Power down the unit by unplugging the power cord from the back of the unit 3.

  • Page 94: Tape Stuck In Drive

    6. Remove the DLT drive by following the steps in “Replacing the DLT Drive” on page 5-4. 7. Inspect the drive to see if any tape is on the take-up wheel. If so, see “Manually Rewinding Tapes” on page 5-11. If not, continue with step 8. StorEdge L280 Service Manual • February 1998...
  • Page 95 8. Remove the drive handle motor assembly (on the right side of the drive). See FIGURE 5-5 Drive Motor Assembly TABLE 5-2 Disconnect the flex cable by gently pulling it out of the connector. Remove the two screws. Slide the assembly straight out and set it aside. Drive Motor Assembly FIGURE 5-5 Chapter 5...
  • Page 96 Note – Ensure that both the top and bottom tabs of the solenoid are pulled out. 10. If you are able to eject the tape and the leader is retracted, restore and save the tape data, then discontinue using that tape. Ejecting the Tape FIGURE 5-6 5-10 StorEdge L280 Service Manual • February 1998...

  • Page 97: Manually Rewinding Tapes

    5.3.5 Manually Rewinding Tapes 1. When the drive is removed, lay it on its side, as shown FIGURE 5-7 2. Insert a Phillips screwdriver into the rewind hole on the bottom of the drive. 3. Turn the screwdriver counterclockwise to rewind the tape ( FIGURE 5-7 Continue rewinding until the leader is seated in the tape.
  • Page 98 5-12 StorEdge L280 Service Manual • February 1998...
  • Page 99 Index declaration of conformity, xi display window description of, 3-6 display window messages, 3-7 activity indicators, 3-8 documents activity lights, 3-6 ordering, xxiii addresses Web, xxiv setting of SCSI, 4-4 drives ADMIN * menu cleaning, 4-6 changing the password, 4-3 autoloader information logs, 4-9 moving, 1-17 to 1-18...
  • Page 100 2-4 removing stuck tapes, 5-7 to 5-11 between magazine and transport, 5-7 in drive, 5-8 in internal slots, 5-7 in transport, 5-7 safety statements, v to ix SCSI addresses Index-2 • February 1998 StorEdge L280 Service Manual...

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