Third Edition (June 1999)
Part Number 185292-003
Compaq Computer Corporation
Notice
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
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USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED "AS IS" AND COMPAQ
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This publication contains information protected by copyright. No part of this publication may be
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1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
The software described in this guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
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Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
Compaq 40/80 DLT Drive Reference Guide
Third Edition (June 1999)
Part Number 185292-003
Contents
About This Guide
Text Conventions.......................................................................................................vii
Symbols in Text....................................................................................................... viii
Symbols on Equipment............................................................................................ viii
Getting Help ............................................................................................................... ix
Compaq Technical Support ................................................................................. ix
Compaq Website...................................................................................................x
Compaq Authorized Reseller................................................................................x
Chapter 1
Overview
Software Included.................................................................................................... 1-2
System Requirements .............................................................................................. 1-2
Data Compression.................................................................................................... 1-3
Chapter 2
Installing an Internal DLT Drive
Software and Tool Requirements............................................................................. 2-2
Setting the SCSI ID ................................................................................................. 2-3
Terminator Power .................................................................................................... 2-4
Preparing the Server ................................................................................................ 2-5
Installing the DLT Tape Drive................................................................................. 2-6
Reassembling the Server........................................................................................ 2-10
Completing the Installation.................................................................................... 2-10
iv Compaq 40/80 DLT Drive Reference Guide
Chapter 3
Connecting an External DLT Drive
Software Requirements ............................................................................................ 3-2
Setting the SCSI ID.................................................................................................. 3-3
Connecting a Single Drive ....................................................................................... 3-4
Connecting Multiple Drives..................................................................................... 3-5
Daisy-Chaining Storage Devices Together ....................................................... 3-5
Completing the Installation ...................................................................................... 3-6
Chapter 4
Installing Software Drivers
Device Drivers ......................................................................................................... 4-1
Microsoft Windows NT ........................................................................................... 4-2
Novell NetWare ....................................................................................................... 4-3
ASPI Support ........................................................................................................... 4-3
Compaq Tru64 UNIX .............................................................................................. 4-4
OpenVMS ................................................................................................................ 4-4
Chapter 5
Operating the DLT Drive
Power-On-Self-Test (POST).................................................................................... 5-1
Approved Cartridges ................................................................................................ 5-2
Operating the DLT Drive ......................................................................................... 5-3
Loading a Cartridge .......................................................................................... 5-3
Unloading a Cartridge....................................................................................... 5-4
Selecting Drive Density .................................................................................... 5-4
Density Select Example .................................................................................... 5-6
Front Panel LEDs and Buttons................................................................................. 5-7
Write-Protecting a Cartridge .................................................................................. 5-10
Cartridge Handling and Storage............................................................................. 5-11
Chapter 6
Tape Drive Cleaning
When to Clean the DLT Tape Drive ........................................................................ 6-2
Importance of Compaq Approved Cartridges .......................................................... 6-2
Cleaning with the Cleaning Cartridge...................................................................... 6-3
About This Guide v
Chapter 7
Troubleshooting
Basic Health Check (BHC) Test .............................................................................. 7-4
Upgrading Firmware................................................................................................ 7-5
Upgrading the Firmware by Cartridge for All Servers ............................................ 7-5
Interpreting the Results of Firmware Upgraded by Cartridge .......................... 7-7
Upgrading the Firmware Using Options ROMPaq for Compaq ProLiant
Servers ..................................................................................................................... 7-8
Downloading Options ROMPaq Utility from the Compaq website ................. 7-8
Creating an Options ROMPaq diskette from Compaq SmartStart and
Support Software .............................................................................................. 7-9
Procedure to upgrade Firmware from Options ROMPaq diskette .................... 7-9
Appendix A
Regulatory Agency Notices
Regulatory Compliance Identification Numbers .....................................................A-1
Federal Communications Commission Notice ........................................................A-1
Class B Equipment ...........................................................................................A-2
Modifications ....................................................................................................A-3
Cables ...............................................................................................................A-3
Canadian Notice (Avis Canadien) ...........................................................................A-3
Class B Equipment ...........................................................................................A-3
European Union Notice ...........................................................................................A-3
Japanese Notice .......................................................................................................A-4
Taiwanese Notice.....................................................................................................A-4
German Notice.........................................................................................................A-5
Acoustic Emissions...........................................................................................A-5
Appendix B
Electrostatic Discharge
Grounding Methods ................................................................................................. B-2
Appendix C
Specifications
Dimensions and Weight...........................................................................................C-1
Altitude .................................................................................................................... C-1
Acoustic Emissions..................................................................................................C-2
Temperature and Humidity Ranges ......................................................................... C-2
Power Requirements................................................................................................C-3
Air-Cooling Requirement ........................................................................................ C-3
Index
About This Guide
This guide is designed to be used as step-by-step instructions for installation
and as a reference for operation, troubleshooting, and future upgrades.
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys Keys appear in boldface. A plus sign (+) between
two keys indicates that they should be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
FILENAMES File names appear in uppercase italics.
Menu Options, These elements appear in initial capital letters.
Command Names,
Dialog Box Names
COMMANDS, These elements appear in uppercase.
DIRECTORY NAMES,
and DRIVE NAMES
Type When you are instructed to type information, type
the information without pressing the Enter key.
Enter When you are instructed to enter information, type
the information and then press the Enter key.
vii Compaq 40/80 DLT Drive Reference Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions
could result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points
of information.
Symbols on Equipment
These icons may be located on equipment in areas where hazardous conditions
may exist.
Any surface or area of the equipment marked with these symbols
indicates the presence of electrical shock hazards. Enclosed area
contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards,
do not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to
the equipment, do not plug telephone or telecommunications
connectors into this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow
the surface to cool before touching.
About This Guide viii
Power Supplies or Systems marked with these symbols
indicate the equipment is supplied by multiple sources of
power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from
the system.
Getting Help
If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.
Compaq Technical Support
You are entitled to free hardware technical telephone support for your product
for as long you own the product. A technical support specialist will help you
diagnose the problem or guide you to the next step in the warranty process.
In North America, call the Compaq Technical Phone Support Center at
1
1-800-OK-COMPAQ . This service is available 24 hours a day, 7 days a week.
Outside North America, call the nearest Compaq Technical Support Phone
Center. Telephone numbers for world wide Technical Support Centers are
listed on the Compaq website. Access Compaq at:
http://www.compaq.com
1
For continuous quality improvement, calls may be recorded or monitored.
ix Compaq 40/80 DLT Drive Reference Guide
Be sure to have the following information available before you call Compaq:
Technical support registration number (if applicable)
s
Product serial number(s)
s
Product model name(s) and number(s)
s
Applicable error messages
s
Add-on boards or hardware
s
Third-party hardware or software
s
Operating system type and revision level
s
Detailed, specific questions
s
Compaq Website
The Compaq website has information on this product as well as the latest
drivers and Flash ROM images. You can access Compaq at:
http://www.compaq.com
Compaq Authorized Reseller
For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518.
s
In Canada, call 1-800-263-5868.
s
Elsewhere, see the Compaq website for locations and telephone
s
numbers.
1
Chapter
Overview
The Compaq 40/80 DLT drive is a high-capacity, high-performance streaming
tape drive designed for use with Compaq ProLiant servers and with Compaq
AlphaServers. The drive has a multi-channel read/write head, uses a Digital
Lempel-Ziv (DLZ) high efficiency data compression algorithm, and has a
filing system to maximize data while minimizing data access time.
Figure 1-1. Compaq 40/80 DLT drive
1-2 Compaq 40/80 DLT Drive Reference Guide
Software Included
The Storage Management Solutions kit provided with your tape drive contains
Compaq-approved live trial tape backup software and the latest hardware
drivers for Compaq tape drives. After evaluating the software, you may
quickly and easily purchase a software key by following the instructions
outlined on each of the product CDs.
NOTE: All software configurations and backup tapes will be retained even after the
60-day evaluation period has elapsed.
System Requirements
Compaq recommends equipping the server with a Fast Wide SCSI-2
Controller or higher. See Table 1-1 for the recommended controller interfaces
that can be used with the 40/80 DLT drive. Install and configure the controller
before beginning the drive installation, using the documentation included with
the controller.
Table 1-1 shows which controllers support the 40/80 DLT drive and which
ones are recommended.
Table 1-1
Supporting Controllers
Controllers Recommended
Fast SCSI-2 (Narrow) No
Fast SCSI-2 (Wide) Yes
Wide-Ultra SCSI Yes
Ultra-2 SCSI Yes
NOTE: The DLT tape drive supports both single ended (SE) and low voltage differential
(LVD). It does not support high voltage differential (HVD).
Overview 1-3
Data Compression
The 40/80 DLT drive reads and writes both uncompressed (native) and Digital
Lempel-Div (DLZ) compressed data. The DLT drive features a native
formatted capacity of 40 GB and a sustained native data transfer of 6.0 MB/s.
When operating in compressed mode, data capacity is affected by how much
the data can be compressed. Most data can be compressed at an approximate
2:1 ratio. This would provide the 40/80 DLT drive with a compressed capacity
of 80 GB and a compressed data transfer up to 12 MB/s.
The DLT drive ships from the factory with data compression enabled for
writing. In this mode, data is always compressed when writing to the tape, but
the drive is capable of reading both compressed and uncompressed tapes. For
the drive to write uncompressed data, the data compression setting must be
changed through the software. To change it, consult the backup application
software documentation for the data compression enabling and disabling
procedure.
Using the Density Select button on the front panel can also disable/enable data
compression but is only effective per session. See "Front Panel LEDs and
Buttons" in Chapter 5 for more information.
IMPORTANT: Capacity may vary based upon actual stored data. Data transfer rate can
vary depending on actual data.
2
Chapter
Installing an Internal DLT Drive
This chapter describes the procedure to install a Compaq 40/80 DLT drive in a
Compaq ProLiant server.
NOTE: If installing a 40/80 DLT tape drive on a Compaq AlphaServer see Chapter 3.
Installing the drive involves the following steps:
1. Setting the SCSI ID on the DLT drive
2. Shutting down the server and all peripheral devices
3. Installing the DLT drive
4. Reassembling the server
5. Powering on the peripherals
6. Powering on the server
7. Completing the installation
2-2 Compaq 40/80 DLT Drive Reference Guide
Software and Tool Requirements
The following items may be required for DLT drive installations:
Torx T-15 screwdriver
s
Type 1A, Phillips screwdriver
s
Compaq SmartStart and Support Software CD (ProLiant servers only)
s
Compaq Storage Management Solutions CDs
s
1 2
Figure 2-1. Rear view of an internal 40/80 DLT drive
1 68-pin SCSI connector
2 Power connector
Installing an Internal DLT Drive 2-3
Setting the SCSI ID
Before beginning the installation process, the SCSI ID must be set. Each SCSI
device on the same SCSI bus must have a unique SCSI ID. Use the jumper
block located on the left side of the tape drive (see Figure 2-2). The default
SCSI ID is 6.
IMPORTANT: SCSI ID 7 is reserved for the SCSI controller.
1 2 3 4 5 6
Figure 2-2. SCSI ID and Library Controller jumper blocks on the left side
1 4
Remote ID present SCSI Bit 1
2 5
Reserved SCSI Bit 0
3 6
SCSI Bit 2 Library Controller block
IMPORTANT: Do not change the settings on the Library Controller block.
NOTE: If a SCSI ID other than the default is used, the Remote ID pin must have a jumper
installed on it.
The SCSI ID settings are shown in Figure 2-3.
2-4 Compaq 40/80 DLT Drive Reference Guide
To set the SCSI ID, position the jumpers as shown in Figure 2-3.
SCSI ID Settings
SCSI ID Bit 2 Bit 1 Bit 0
0
1
2
3
4
5
6
Jumper NOT Installed
Key
Jumper Installed
Figure 2-3. Setting the SCSI ID jumpers on an internal DLT drive
Terminator Power
The 40/80 DLT drive ships from the factory with terminator power (TERM
PWR) disabled. This allows only the controller to provide power for SCSI
termination.
IMPORTANT: Make sure that the controller provides terminator power.
If enabled, the TERM PWR setting allows the drive in addition to the
controller to provide the termination power. To enable TERM PWR a jumper
must be place on the 3 and 4 pin of the termination block located on the right
side of the tape drive.
The termination power setting is shown in Figure 2-4.
Installing an Internal DLT Drive 2-5
Figure 2-4. Termination power jumper block on the right side
Preparing the Server
To prepare the server for installation:
CAUTION: Electrostatic discharge (ESD) can damage electronic components. Be
sure you are properly grounded before beginning this procedure. See Appendix
B, "Electrostatic Discharge" for further information.
1. Perform a normal system shutdown.
2. Turn OFF the server and all peripheral devices.
3. Disconnect the AC main power cord from the outlet, then from the
server and from all peripheral devices.
4. Disassemble the system to expose the drive bay. Refer to the user
manual that came with your server.
2-6 Compaq 40/80 DLT Drive Reference Guide
Installing the DLT Tape Drive
NOTE: Your server may differ from the following illustrations; refer to the documentation
included with your server.
To install a DLT tape drive with drive rails:
1. Choose the right and left front panel labels from the labels provided in
the kit. Place them over the existing front panel.
DLT
Figure 2-5. Adhering the front labels
Installing an Internal DLT Drive 2-7
2. Install the tape drive into two adjacent available media bays.
CT
SELE T
EJEC
R
ENTE
Figure 2-6. Installing a DLT drive with drive rails
3. Insert 2 screws in the front plate using a Torx T-15 screwdriver.
4. Connect an available power cable and the wide SCSI signal cable.
Figure 2-7. Connecting power and signal cables
2-8 Compaq 40/80 DLT Drive Reference Guide
To install a DLT tape drive without drive rails:
1. Choose the right and left front panel labels from the labels provided in
the kit. Place them over the existing front panel.
DLT
Figure 2-8. Adhering the front labels
2. Remove screws from drive rails using a Type 1A, Phillips screwdriver.
3. Slide the tape drive into two adjacent available media bays.
Figure 2-9. Installing a DLT drive without drive rails
4. Use the screws that were removed from the drive rails; insert two into
the threaded mounting holes on each side.
NOTE: Some servers may not be accessible on both sides. Secure the side(s) that are
accessible.
5. Connect an available power cable and the wide SCSI signal cable.
Installing an Internal DLT Drive 2-9
Figure 2-10. Connecting power and signal cables
Reassembling the Server
To reassemble the server:
1. Replace the access panel.
2. Reconnect the peripheral devices to the server.
WARNING: To reduce the risk of electric shock or damage to your equipment,
do not disable the power cord grounding feature. This equipment is designed for
connection to a grounded (earthed) power outlet. The grounding plug is an
important safety feature.
3. Plug the AC main power cord into the server, then plug the cord into a
grounded AC outlet.
4. Turn ON all peripheral devices.
5. Turn ON the server.
Completing the Installation
Install the device drivers to complete the installation of the Compaq 40/80
DLT drive. See Chapter 4, "Installing Software Drivers," for specific driver
installation information.
3
Chapter
Connecting an External DLT Drive
This section describes the procedure for connecting an external Compaq 40/80
DLT tape drive to a Compaq ProLiant server or a Compaq AlphaServer. When
installing be sure to place the DLT drive on a flat, sturdy surface such as a
desk or tabletop.
NOTE: Do not place the unit on the floor. Allow enough space for proper ventilation and
easy access to the front and rear of the DLT drive. Allow at least 3 inches (7.6 cm)
between the rear of the unit and the wall.
WARNING: Risk of electrical shock. Do not attempt to open this product. There
are no user-serviceable parts inside. Refer all service to a Compaq Authorized
Service Provider.
Connecting the drive involves the following steps:
1. Setting the SCSI ID on the DLT drive
2. Shutting down the server and all peripherals devices
3. Connecting the DLT drive
4. Powering on the peripherals
5. Powering on the server
3-2 Compaq 40/80 DLT Drive Reference Guide
Software Requirements
The following items may be required for DLT drive installations:
Compaq SmartStart and Support Software CD (ProLiant servers only)
s
Compaq Storage Management Solutions CDs
s
NOTE: The CDs are not required when connecting the DLT drive to an AlphaServer.
1 5
2
3 4
Figure 3-1. Rear view of an external 40/80 DLT drive
1 4
SCSI connector AC power connector
2 5
SCSI connector SCSI ID switch
3 Power switch
Connecting an External DLT Drive 3-3
Setting the SCSI ID
Each SCSI device on the same SCSI bus must have a unique SCSI ID. Avoid
duplicating the SCSI ID when assigning it to the DLT drive. Use the factory-
set default SCSI ID 6.
To change the SCSI ID, press the switch on the rear panel of the drive above
or below the number display to set the desired number.
NOTE: The SCSI ID can be set up to 15 but a SCSI ID above 6 is not recommended.
IMPORTANT: SCSI ID 7 is reserved for the controller.
6
Figure 3-2. Setting the SCSI ID switch on an external DLT drive
3-4 Compaq 40/80 DLT Drive Reference Guide
Connecting a Single Drive
1. Choose the right and left front panel labels from the labels provided in
the kit. Place them over the existing front panel.
DLT
Figure 3-3. Adhering the front labels
2. Turn OFF the server and all peripheral devices.
3. Locate the external SCSI port on the rear of the server.
NOTE: Your server may differ from the following illustrations; refer to the documentation
included with your server.
1
2
3
4
Figure 3-4. Connecting a single external DLT drive
1 2
4. Attach the SCSI signal cable to the SCSI connector located on the
rear panel of the DLT drive and then to the external SCSI-2 port on the
server.
Connecting an External DLT Drive 3-5
5. Turn thumbscrews into place to secure the cable to the connector.
3.
6. Attach the terminator (not shown) to the SCSI connector
WARNING: To reduce the risk of electric shock or damage to your equipment,
do not disable the power cord grounding feature. This equipment is designed for
connection to a grounded (earthed) power outlet. The grounding plug is an
important safety feature.
4 into the drive, then into a grounded
7. Plug the drive's AC power cord
AC outlet.
8. Turn ON all peripheral devices.
9. Turn ON the server.
Connecting Multiple Drives
Two DLT drives can be connected to the same SCSI channel at the same time.
Do not connect more than 2 external units per SCSI controller. Use no more
that a 6-ft (1.8-m) cable to attach the initial unit, then use a 3-ft (0.9-m) cable
to daisy chain the additional unit.
Daisy-Chaining Storage Devices Together
This procedure assumes that one external DLT drive is already connected to
the server.
1. Choose the right and left front panel labels from the labels provided in
the kit. Place over the existing front panel. See Figure 3-3.
2, remove
2. If the first drive unit has a terminator on the SCSI connector
it.
3. Connect the tape drives by placing a SCSI cable between the SCSI
2 3
connector of the first drive to the SCSI connector of the second
drive.
NOTE: Each drive must have a unique SCSI ID. See "Setting the SCSI ID" for
more information.
3-6 Compaq 40/80 DLT Drive Reference Guide
1
2
3
4
Figure 3-5. Connecting multiple external DLT drives
4 of the second
4. Place the terminator (not shown) on the SCSI connector
drive.
5. Turn ON all peripheral devices.
6. Turn ON the server.
Completing the Installation
Install the device drivers to complete the installation of the Compaq 40/80
DLT drive. See Chapter 4, "Installing Software Drivers," for specific driver
installation information.
4
Chapter
Installing Software Drivers
The following operating environments support the Compaq 40/80 DLT drives:
Microsoft Windows NT
s
Novell NetWare
s
Compaq Tru64 UNIX
s
OpenVMS
s
Device Drivers
Drivers for Intel-based systems are located on the Compaq SmartStart and
Support Software CD, the Support Software Diskettes, and the Tape Drive
Supplemental Driver CD in the Storage Management Solutions package that
came with the tape drive. You can use SmartStart to create Support Software
Diskettes for specific operating systems.
For all other operating systems contact a Compaq Authorized Service
Provider.
4-2 Compaq 40/80 DLT Drive Reference Guide
Microsoft Windows NT
Drivers for the SCSI controllers and tape drive hardware are located on the
Compaq SmartStart and Support Software CD and Support Software Diskettes
that are shipped with the Compaq ProLiant servers. The Support Software can
also be downloaded from the Compaq website. The tape device driver is
located on the Tape Drive Supplemental Driver CD or with the operating
system. Refer to your backup application installation guide for more
information regarding additional software.
Table 4-1
Microsoft Windows NT
Controller Software Driver Information
Refer to "Compaq SCSI Controller Support" in
Fast SCSI-2 (Narrow)
the NTREADME.HLP file on the Compaq
Fast SCSI-2 (Wide) Support Software for Microsoft Windows NT
diskette, Version 1.21 or later.
Wide-Ultra SCSI
Ultra-2 SCSI
IMPORTANT: If the SCSI controller to which your drive is attached was not present during
your initial Windows NT installation, install the SCSI device driver for the controller before
installing the tape class driver.
Refer to "Compaq Tape Support" in the NTREADME.HLP file on the Compaq
Support Software for Microsoft Windows NT diskette.
Installing Software Drivers 4-3
Novell NetWare
Drivers for the SCSI controllers and tape drive hardware are located on the
Compaq SmartStart and Support Software CD and Support Software
Diskettes. The Support Software ships with each server or can be downloaded
from the Compaq website. The tape device driver is located on the Tape Drive
Supplemental Driver CD or with the operating system. Refer to your backup
application installation guide for more information regarding additional
software.
Table 4-2
Novell NetWare
Controller Software Driver Information
Run the README.COM file on any of the
Fast SCSI-2 (Narrow)
Novell Software Support Diskettes (NSSD) for
Fast SCSI-2 (Wide) driver installation instructions.
Wide-Ultra SCSI
Ultra-2 SCSI
Be sure to load the drivers in conjunction with the Compaq controller. There
are additional driver issues if you want to use applications requiring the
Advanced SCSI Programming Interface (ASPI) support. For more information
see the following section.
ASPI Support
The README.COM on the Novell Software Support Diskette (NSSD)
outlines the specific drivers you need to support ASPI tape backup
applications.
If you are using a tape backup application that uses the ASPI, such as
ARCserve provided by Compaq or Seagate BackupExec, refer to the
information provided with your application NLM to determine whether it uses
ASPI.
The Compaq ASPI drivers, CPQSASPI.NLM Device Driver Functional
Specification (DDFS) and NWASPI.NLM NetWare Peripheral Architecture
(NWPA), provide ASPI support for the Compaq SCSI architecture for
applications that require this interface.
4-4 Compaq 40/80 DLT Drive Reference Guide
All required drivers for ASPI tape support are provided on the Novell
Software Support Diskette (NSSD). The Support Software ships with each
server or can be downloaded from the Compaq website.
The SCSI.RDM file on the NSSD diskette gives complete instructions on how
to load these drivers and troubleshoot any problems.
Compaq Tru64 UNIX
The Compaq Tru64 UNIX operating system uses Dynamic Device
Recognition (DDR) which allows the operating system to recognize the DLT
tape drive.
If the Tru64 UNIX system does not have a DDR entry to identify the DLT
tape drive, the system defaults to a generic SCSI device and to the default
settings of the tape drive.
OpenVMS
The OpenVMS operating system uses Dynamic Device Recognition (DDR)
which allows the operating system to recognize the DLT tape drive.
If the OpenVMS system does not have a DDR entry to identify the DLT tape
drive, the system defaults to a generic SCSI device and to the default settings
of the tape drive.
5
Chapter
Operating the DLT Drive
This section describes:
Power-On-Self-Test (POST)
s
Approved Cartridges
s
Operating the DLT Drive
s
Front Panel LEDs and Buttons
s
Write-Protecting a Cartridge
s
Cartridge Handling and Storage
s
Power-On-Self-Test (POST)
When power is initially applied, the DLT drive performs a Power-On Self-Test
(POST). This self-test starts a sequence of events indicated by the front panel
LEDs. After you power up the DLT drive:
1. All left-side LEDs illuminate for approximately three seconds, then shut
off.
2. The Operate Handle, the Write Protect, and the Use Cleaning Tape
LEDs turn off.
3. The Tape in Use LED blinks while the cartridge drive initializes.
4. After initializing, if a cartridge is not loaded in the drive, the Tape in
Use LED turns off, and the Operate Handle LED illuminates.
NOTE: POST will not complete until the Operate Handle is in the down position. If POST is
waiting for the handle to be put down, the Operate Handle LED will flash.
The drive is now ready for operation.
5-2 Compaq 40/80 DLT Drive Reference Guide
Approved Cartridges
The following describes Compaq-approved cartridges:
Table 5-1
Cartridge Types and Formats
Cartridge Type Cartridge Formats
Compaq DLT Tape III 10.0 GB
Compaq DLT Tape IIIXT 15.0 GB
Compaq DLT Tape IV 20.0 GB, 35.0 GB, 40.0 GB
NOTE: DLT 2.6 GB and 6.0 GB tape formats are not supported.
Operating the DLT Drive
IMPORTANT: When loading or unloading a cartridge, the Operate Handle LED must be
illuminated.
Loading a Cartridge
1. When the Operate Handle LED is illuminated, lift the cartridge
1.
insert/release handle
2. Insert the cartridge 2.
3. Push the cartridge completely into the drive.
3 to lock the cartridge in place.
4. Lower the handle
Operating the DLT Drive 5-3
1
3
2
Figure 5-1. Loading a cartridge sequence
Once a cartridge is inserted, the cartridge initialization process begins and the
Tape in Use LED flashes. When the cartridge is at the beginning of tape
(BOT) marker, the Tape in Use LED illuminates. The cartridge is now ready
for use.
Unloading a Cartridge
Press the Unload button or issue an eject command in the software
application.
When the Operate Handle LED illuminates, lift the handle, remove the
cartridge, and lower the handle.
Selecting Drive Density
Drive density can be selected by using any of the following:
On a write from Beginning of Tape (BOT), change the cartridge density
s
by:
q Pressing the Density Select button multiple times until the desired
Density LED flashes. Using the Density Select button always
overrides a host selection.
q Making a programmable host selection through the operating
system. (The Density LED is off, indicating automatic or host
density selection.)
5-4 Compaq 40/80 DLT Drive Reference Guide
q Allowing the drive to default to the density of the cartridge that has
been loaded with the data compression ON (assuming the Density
Select button or the host selection was not used.) If a previous
written cartridge is inserted, the drive defaults to the previous
density.
On a prerecorded cartridge, the drive uses the recorded density for all
s
read operations and appended write operations.
CAUTION: If reusing a prerecorded cartridge and writing from BOT, all
prerecorded data is lost. Density changes are also lost since they only occur
when writing from BOT.
Table 5-2 shows the results of density selection.
Table 5-2
Results of Density Selection
If Then
The LEDs show the actual density when the
The Density Select button wasn't pressed,
cartridge is reading and writing. The LEDs
are illuminated steadily and Density LED is
off.
The actual density and the Density LEDs
The Density Select button was pressed,
are illuminated. For example, if the actual
and if the actual cartridge density is the
cartridge density is 20.0 and the selected
same as the density selected,
cartridge density is 20.0, then the 20.0 LED
will be illuminated.
1. The LED with the actual density is
The Density Select button was pressed,
illuminated steadily.
and if the actual cartridge density differs
from the density selected,
2. The LED with the selected density
blinks.
3. Density LED is illuminated steadily.
For example, if the actual cartridge
density is 35.0 and the selected
density is 20.0, the 35.0 LED is
illuminated steadily, the 20.0 LED
blinks, and the Density LED is
illuminated steadily.
Operating the DLT Drive 5-5
Density Select Example
If a cartridge with a prerecorded 20.0 density has been loaded and the Density
Select button was pressed to select 35.0 density:
The 20.0 LED remains illuminated pending the change in density.
s
The 35.0 LED flashes indicating a change in density is pending.
s
The Density LED illuminates.
s
When the write from BOT occurs:
The 20.0 LED shuts off.
s
The 35.0 LED changes to on.
s
The Density LED remains illuminated.
s
Front Panel LEDs and Buttons
W
10
r
.0/
Pr ite
1
20 5.0 ote
cte
.0
d
35 Ta
p
.0
In e
Us
40
e
.0
Us
e
Cl
e
Co Ta anin
mp pe g
re
ss
De
Op
Ov nsit
DLT Ha erat
er y
rid nd e
e le
De Un
Se nsit loa
lec y d
t
Figure 5-2. Identifying the front panel
5-6 Compaq 40/80 DLT Drive Reference Guide
The following table describes and explains the front panel LEDs:
Table 5-3
Front Panel LEDs
LEDS Actions Explanation
Write Protected ON Tape is write-protected.
OFF Tape is write-enabled.
Tape in Use Blinking Tape is moving.
ON Tape is loaded; ready for use.
Use Cleaning ON A cleaning cartridge is requested.
Tape
OFF No cleaning required.
Operate Handle ON OK to operate the cartridge insert/release handle.
Blinking POST not complete. Do not insert cartridge. Place handle
down.
OFF Do not operate the cartridge insert/release handle.
continued
Operating the DLT Drive 5-7
Table 5-3
Front Panel LEDs continued
LEDS Actions Explanation
10.0/15.0 ON Tape is recorded in either 10.0 or 15.0 format.
Blinking Tape is recorded in another density. This density is
selected for a write from BOT.
20.0 ON Tape is recorded in 20.0 format.
Blinking Tape is recorded in another density. This density is
selected for a write from BOT.
35.0 ON Tape is recorded in 35.0 format.
Blinking Tape is recorded in another density. This density is
selected for a write from BOT.
40.0 ON Tape is recorded in 40.0 format.
Blinking Tape is recorded in another density. This density is
selected for a write from BOT.
Compress ON Compression mode is enabled. (Compression can be
done in all densities.)
OFF Compression mode is disabled.
Density ON Density was selected from the front panel.
Override
Blinking In density selection mode.
OFF Density to be selected from host.
(default)
All right-side or ON POST is starting.
left-side lights
Blinking An error has occurred. See Chapter 7,"Troubleshooting,"
for more information.
5-8 Compaq 40/80 DLT Drive Reference Guide
The following table describes the front panel buttons:
Table 5-4
Front Panel Buttons
Control Description
Buttons
Unload Starts the cartridge unload sequence. The cartridge must be completely
rewound before the cartridge can be removed. When the Unload button
is pressed, the DLT drive waits until an active write to cartridge is
completed before beginning the unload sequence. If the drive is in an
error state (all right-side and left-sided lights are flashing on the front
panel), pushing the Unload button causes the drive to reset and unload
the tape if possible.*
Density Select Selects desired density. After density is selected, pressing this button
turns compression on or off.
Cartridge The handle lifts to load or eject a cartridge. Lowering the handle locks
Insert/Release the cartridge into position.**
Handle
Notes:
* The cartridge cannot be manually unloaded if there is no power to the DLT drive.
** When the drive is first powered on, the Cartridge Insert/Release Handle must be in the
down position. Operate the Handle only when the Operate Handle LED is illuminated.
CAUTION: Inserting a cartridge while the Operate Handle LED is flashing may
damage the tape drive.
Operating the DLT Drive 5-9
Write-Protecting a Cartridge
The cartridge has a write-protect switch to prevent accidental erasure of data.
Before loading the cartridge into the drive, position the write-protect switch on
1,
the cartridge is
the front of the cartridge. By moving the switch to the left
2, the cartridge is
write-protected and by moving the switch to the right
write-enabled.
If you move the cartridge write-protect switch to the left while the cartridge is
in the DLT drive, the drive illuminates the write protect LED immediately. If
the drive is writing to the cartridge, write-protect does not begin until the
current write command completes.
2
1
Figure 5-3. Cartridge write-protect switch
5-10 Compaq 40/80 DLT Drive Reference Guide
Cartridge Handling and Storage
For longer life of recorded or unrecorded cartridges, store cartridges in a clean
environment with these conditions:
Use cartridge in temperatures between 10C and 40C (50F to 104F).
s
If the cartridge has been exposed to extreme heat or cold, stabilize the
s
cartridge at room temperature for the same amount of time it was
exposed up to 24 hours.
Do not place cartridges near electromagnetic interference sources, such
s
as terminals, motors, and video or X-ray equipment. Data on the
cartridge can be altered.
Store cartridge in a dust-free environment where the relative humidity is
s
between 20% and 80%. For longer cartridge life, store the cartridge at
20% to 40% relative humidity.
If the cartridge is dropped or damage is suspected, shake the cartridge:
s
q If it rattles, it is damaged. Restore the data on the cartridge by
another means other than using the DLT tape drive, and discard the
damaged cartridge.
2
q If it doesn't rattle, check the tape leader inside the cartridge. To
do this, open the door on the rear of the cartridge by releasing the
1. The tape leader should be in the position shown in
door lock
Figure 5-4.
1
2
Figure 5-4. Checking the tape leader
6
Chapter
Tape Drive Cleaning
Reliable backup of your system is the product of at least four components:
A reliable tape drive
s
Quality cartridge
s
Regular backup schedule with backup media stored offsite
s
Tape drive maintenance
s
6-2 Compaq 40/80 DLT Drive Reference Guide
When to Clean the DLT Tape Drive
Routine cleaning of the 40/80 DLT drive is not necessary and can even
damage it. The following table describes when the tape drive needs to be
cleaned.
Table 6-1
When Use Cleaning Tape LED is illuminated
If Then Action
The Use Cleaning Tape LED Clean the tape drive using
1. The tape drive needs
is illuminated, a cleaning cartridge.
cleaning.
2. The data cartridge is
bad.
After cleaning the drive, The data cartridge may be Back up the data from the
using a data cartridge damaged. damaged cartridge to a
causes the Use Cleaning new cartridge and discard
Tape LED to illuminate, the damaged one.*
After cleaning the drive the The cleaning is not done Use another cleaning
Use Cleaning Tape remains and the cleaning cartridge cartridge and discard the
illuminated, has expired. old one.
* Using a damaged cartridge may cause unnecessary cleaning of the tape drive.
NOTE: The cleaning cartridge expires after 20 uses.
Importance of Compaq
Approved Cartridges
Compaq-approved cartridges are thoroughly tested to meet high-quality
standards. Before Compaq recommends a cartridge the quality and reliability
of the magnetic media and the cartridge are evaluated. Do not use unapproved
cartridges; they may not be compatible with Compaq tape drives. See the
section "Approved Cartridges" in Chapter 5 for a list of Compaq-approved
cartridges.
Tape Drive Cleaning 6-3
Cleaning with the Cleaning Cartridge
IMPORTANT: To clean the heads of the DLT drive, use only cleaning cartridges
compatible with the DLT drive.
1. When the Operate Handle LED is illuminated, lift the cartridge
1.
insert/release handle
2. Insert the cartridge 2.
3. Push the cartridge completely into the drive.
3 to lock the cartridge in place.
4. Lower the handle
1
3
2
Figure 6-1. Loading a cleaning cartridge
When the cleaning cartridge has completed, the Operate Handle LED
illuminates.
1.
1. Lift the cartridge insert/release handle
2. Remove the cartridge.
3.
3. Lower the handle
4. Record the use of cleaning cartridge by filling the check box on the
cartridge label.
IMPORTANT: Discard the cleaning cartridge after 20 uses.
7
Chapter
Troubleshooting
If the Compaq 40/80 DLT drive fails during POST or operation, use Table 7-1
to determine the problem and the action to take:
Table 7-1
Troubleshooting Chart
If Then Action
The system does not The system might not be Configure the system to
recognize the DLT drive, configured to see the SCSI see the ID.
ID.
The SCSI ID might not be Change the SCSI ID and
unique. reconfigure the system.
The new ID is effective at
the next power-on.
The parameters for the Check the SCSI ID adapter
SCSI adapter might be installation.
incorrect.
The SCSI signal cable Make sure the connector
might be loose. on each end of the cable is
seated.
continued
7-2 Compaq 40/80 DLT Drive Reference Guide
Table 7-1
Troubleshooting Chart continued
If Then Action
The system does not The SCSI bus might not be 1. If the DLT drive is the
recognize the DLT drive, correctly terminated. last or only device on
the bus, make sure
the terminator is
installed on the drive.
2. If the DLT drive is not
the last or only device
on the bus, check the
cable connections
and make sure the
terminator is installed
at the end of the bus.
The SCSI terminator might Be sure to install a
not be at the end of the terminator at each end of
bus, or more than two the bus. One terminator is
terminators might be usually installed at the
present. system.
The SCSI bus might be too Limit the bus length to the
long. ANSI SCSI standard of 3
meters (9.8 feet) for single
ended (SE).
Too many devices might be Limit the number of
on the bus. devices on the bus to eight,
including the SCSI
controller.
The DLT drive does not The DLT drive has no With the DLT power switch
power up, power. off, check the DLT power
connections.
continued
Troubleshooting 7-3
Table 7-1
Troubleshooting Chart continued
If Then Action
All right-side or left-side A drive fault has occurred. Try to unload the cartridge
LEDs on the DLT drive front and reinitialize the drive by
panel blink, turning drive power off and
then on again. The right-
side or left-side lights stop
blinking and the drive tries
to reinitialize. If re-
initializing is successful,
the lights illuminate
steadily again and go off.
Fatal or nonfatal errors Determine if the tape drive Run the Basic Health Check
occur for which a cause recognized an error. (BHC) test.
cannot be determined,
The bus termination or Ensure the SCSI bus is
SCSI signal cable terminated.
connections might be
incorrect.
The AC mains power Plug the DLT drive into a
source grounding might be grounded AC mains power
incorrect. outlet on the same line
powering the server.
After taking the action listed in Table 7-1, power ON the 40/80 DLT drive to
rerun POST. If all right-side or left-side LEDs blink again, hardware failure is
likely.
7-4 Compaq 40/80 DLT Drive Reference Guide
Basic Health Check (BHC) Test
The BHC uses the tape drive system's firmware to check the various EEROM-
based information packets for log entries of events that occurred in the
previous 120 hours of operation. Based on that information, the system can
report on its "health." This test is pass/fail only.
To run the BHC:
1. Press and hold the Density Select button for five seconds. The Density
Override LED flashes for five seconds. After the five seconds, the top
two density LEDs will illuminate.
NOTE: If the Density Select button is held for less than five seconds, the BHC test will
not run and the density LEDs return to their original state.
2. Release, then momentarily hold the Density Select button. The top two
density LEDs will flash, indicating that the BHC test is running. The
two density LEDs continue to flash while the test proceeds.
NOTE: If the Density Select button is not released then momentarily pressed again, the
BHC test will not run and the density LEDs return to their original state.
3. If the test passes, the top four density LEDs illuminate steadily for five
seconds, then return to their original state.
4. If the test fails, the top four density LEDs flash on and off for five
seconds, then return to their original state.
If the BHC test fails, hardware failure is likely. Contact the Compaq Technical
Support Center for help. See the "About This Guide" section for information
on contacting the support center.
Troubleshooting 7-5
Upgrading Firmware
If it is determined that the firmware needs to be upgraded there are two
methods: by a firmware upgrade cartridge or by Options ROMPaq. For all
servers the firmware can be upgraded through a cartridge. Options ROMPaq
can only upgrade firmware for Compaq ProLiant servers.
Upgrading the Firmware by Cartridge for
All Servers
IMPORTANT: For a firmware upgrade cartridge, contact a Compaq Authorized Service
Provider.
The Compaq 40/80 DLT drive allows the firmware to be upgraded by using a
firmware upgrade cartridge. Follow the steps below.
CAUTION: When performing a firmware update, take reasonable precautions to
prevent a power failure. During the firmware update, when the new image is
actually being programmed into the FLASH EEPROMs, a power failure (but not
BUS RESET) causes the tape drive to be unusable.
1. Exit all cartridge applications before proceeding with a firmware
upgrade.
2. Put the DLT subsystem into the firmware update mode:
a. Remove any cartridge that is in the target DLT drive and close the
handle (down position).
b. Press the Unload button on the drive front panel and hold the button
(about 6 seconds) until the Write Protect LED blinks to indicate that
the DLT subsystem has recognized the request for firmware update
mode and is ready to proceed.
IMPORTANT: If Write Protect LED does not blink, make sure that:
1. The drive has powered up correctly without errors.
2. The drive is unloaded.
3. The drive handle is in the down position.
4. Press the Unload button on the drive front panel and hold the button (about 6
seconds) until the Write Protect LED blinks to indicate that the DLT subsystem has
recognized the request for firmware update mode and is ready to proceed.
c. When the Write Protect LED blinks, release the Unload button and
press it again within 4 seconds. Pressing the Unload button the
second time should take less than a 1 second.
7-6 Compaq 40/80 DLT Drive Reference Guide
d. The Tape in Use and Write Protect LEDs blink to indicate that the
cartridge subsystem recognizes that the firmware update mode was
selected.
IMPORTANT: If selecting the firmware update mode is not successful (for example,
because pressing the button the second time takes longer than one second) the Write
Protect LED should stop blinking within several seconds. Try the procedure again.
3. After the firmware update mode has been selected, insert the firmware
cartridge into the drive. This action:
q Automatically reads the cartridge
q Examines the data
q Verifies the data is a valid DLT firmware image
4. If the firmware is valid, the update proceeds automatically.
q If the drive code is the same as the cartridge to be updated, the drive
code does not go through an update
q If the drive code is different, the drive code goes through an update,
taking 2 to 3 minutes. While the drive code goes through the update,
the Write Protect and Tape in Use LEDs flash alternately.
5. When the drive code update is complete, the drive resets and goes
through initialization. The initialization process waits until the cartridge
is rewound to the beginning of the tape.
6. The tape drive's flash EEPROM memory is also automatically updated
with the new firmware image. The Write Protect and Tape in Use LEDs
flash again during the controller firmware update.
7. Wait until the Unload LED is illuminated.
8. Remove the firmware cartridge.
Troubleshooting 7-7
Interpreting the Results of Firmware Upgraded by
Cartridge
Two possible results can occur:
The firmware upgrade cartridge is unloaded - this means the update was
s
successful. On the DLT drive, the media is placed into the cartridge, the
door is unlocked, and the Operate Handle LED turns on.
The firmware update cartridge is not unloaded: this means the update
s
was unsuccessful. The subsystem should still be usable, but this depends
on why the update failed. Reasons for failure could be:
q Power failure
q Bad image on the cartridge
q Bad tape drive
The following table gives additional details:
Table 7-2
Firmware Results
If Then
The image is valid, 1. The Flash EEPROM containing the
current firmware is erased.
2. The new image is programmed in.
The subsystem completes the update
in about 2 minutes. Then:
s The tape drive resets itself
s POST takes place
s The drive automatically unloads the
cartridge containing the firmware
image, so you can remove the
cartridge. This indicates a successful
firmware update.
continued
7-8 Compaq 40/80 DLT Drive Reference Guide
Table 7-2
Firmware Results continued
If Then
No update is attempted. Write Protected
The cartridge is not a valid firmware
and Tape In Use LEDs do not blink. The
upgrade cartridge,
drive resets and the cartridge stays loaded
to signal that the firmware update was
unsuccessful.
The cartridge does not contain a valid The tape drive is probably unusable and
image, or the cartridge contains a valid must be replaced. The tape drive resets
image, but for some reason the itself and reruns POST, which fails if the
reprogramming of Flash memory fails, Flash memory does not contain a valid
image.
CAUTION: Never turn off power if you think the firmware is being updated. This
can damage the tape drive.
Upgrading the Firmware Using Options
ROMPaq for Compaq ProLiant Servers
NOTE: This procedure will only work on Compaq ProLiant Servers. For Compaq
AlphaServers see "Upgrading the firmware by Cartridge for All Servers."
The Compaq 40/80 DLT Drive firmware can be upgraded by downloading the
Options ROMPaq from the Compaq website:
www.compaq.com
or by creating a diskette from the Compaq SmartStart and Support
Software CD.
IMPORTANT: Make sure that you select Options ROMPaq if you are downloading or
creating a diskette from the SmartStart and Support CD. Do not use ROMPaq for this
procedure. ROMPaq is for upgrading Compaq servers and workstation firmware.
Troubleshooting 7-9
Downloading Options ROMPaq Utility from the
Compaq website
The Options ROMPaq utilities must be run from diskette. If you download the
utilities from the Compaq website, follow the directions given during the
download process to create the diskette.
Creating an Options ROMPaq diskette from
Compaq SmartStart and Support Software
If you use the Compaq SmartStart and Support Software CD, follow these
directions to create the diskette:
1. Boot the server from the Compaq SmartStart and Support Software CD.
2. From the Compaq System Utilities screen, select Create Support Software.
3. At the Diskette Builder screen, select the appropriate option for your
server model.
4. Follow the instructions on the screen to create the Options ROMPaq
diskette.
Procedure to upgrade Firmware from
Options ROMPaq diskette
Once you have created an Options ROMPaq diskette, follow the steps below
to upgrade the firmware.
1. Shut down the server.
2. Insert the Options ROMPaq diskette into the server diskette drive.
3. Turn ON the server.
4. Press Enter at the Welcome screen.
5. At the Select a Device screen, select the tape drive from the list of
programmable devices. This may be the only item in the list. Press
Enter.
6. At the Select An Image screen, you will see information describing your
tape drive, the date of the existing ROM version, and the date of the
latest ROM version. Press Enter.
7. Review the information on the Caution screen. Press Enter to
reprogram the system ROM or Esc to discontinue reprogramming and
return to the Select An Image screen.
7-10 Compaq 40/80 DLT Drive Reference Guide
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