HP Tape Library & Autoloader Drive Manual Edition 2 Part Number: C7200-90090 February 2001 © Copyright 2001 Hewlett-Packard Company
Notice This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language. The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Typographical Conventions and Terms Keycap: Menu choices within the HP Library & Tape Tools diagnostic utility. WARNING Warnings call attention to a procedure or practice that could result in personal injury if not correctly performed. Do not proceed until you fully understand and meet the required conditions. CAUTION Cautions call attention to an operating procedure or practice that could damage the product if not correctly performed.
Using this Manual Hewlett-Packard Tape Libraries and Autoloaders support Quantum DLT 8000, Benchmark DLT1, and HP Ultrium drive technologies. This manual provides information on drives and media that will assist you in using, maintaining, and troubleshooting your product. The following chapters are included in this manual: Chapter 1 Overview: Provides a brief introduction to Quantum DLT, Benchmark DLT1, and HP Ultrium drives, media, compatibility, media migration, mixed media, and general precautions.
Supported Drive Technologies The following table lists Hewlett-Packard Tape Libraries and Autoloaders, and their supported drive technologies.
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Contents 1. Overview Drive Technologies and Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Format Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Media Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Mixed Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Rewinding/Removing a Stuck Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 DLT1 Cleaning Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Media Compatibility Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Miscellaneous Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 4.
1 Overview Chapter 1 1-1
Overview Drive Technologies and Compatibility Drive Technologies and Compatibility Format Compatibility Table 1-1 shows read and write compatibility between Quantum DLT, Benchmark DLT1, and LTO, Linear Tape-Open, Ultrium formats.
Overview Drive Technologies and Compatibility Media Compatibility CAUTION It is critical to ensure that the media you use matches the format of your tape drive. Cleaning cartridges and formatted data cartridges are unique for each drive technology. Damage may occur if inappropriate media is used in the tape drives. Table 1-2 shows drive technologies and compatible unformatted data cartridges.
Overview Mixed Media Mixed Media HP Tape Libraries have a mixed media feature that allows the use of two different drive technologies in the same library. (See page -v for a list of libraries and the drive technologies they support.) NOTE Supported use models are described in detail in the Mixed Media White Paper for the Network Administrator. This document is available from www.hp.com/support/modularlibrary for tape library models 2/20, 4/40, and 6/60, and from www.hp.
Overview Media Migration Media Migration Utilities and services are available to assist you in migrating from one drive technology to another where possible. HP Library & Tape Tools The HP Library & Tape Tools diagnostic assists you in installing and supporting your tape library or autoloader. This tool provides an intuitive graphical user interface with integrated context-sensitive help. It can be downloaded free of charge from www.hp.com/support/tapetools.
Overview Media Migration NOTE Before using the media migration utility in HP Library & Tape Tools, ensure that the source media is write-protected. This utility does not provide any library control. You must load media into the selected drives using the library or autoloader front panel, Web-Based Library Administrator, or your backup software utility. For more information on using HP Library & Tape Tools for media migration, refer to www.hp.com/support/tapetools.
Overview Electrostatic Discharge (ESD) and Other Precautions Electrostatic Discharge (ESD) and Other Precautions Tape drives contain very sensitive electrical components. It is important to follow the proper procedures to prevent electrostatic discharge (ESD), which could result in damage to the product. Failure to take proper precautions could lead to intermittent failures or premature hard failures.
Overview Electrostatic Discharge (ESD) and Other Precautions Use the following general precautions when handling tape cartridges: • Do not carry cartridges loosely in a container that exposes them to unnecessary physical shock. Dropping or bumping cartridges may dislodge and damage internal components. • Store each cartridge vertically in its protective case until needed. • Do not allow direct contact with the tape medium or open the tape door unnecessarily.
2 Quantum DLT Drives & Media Chapter 2 2-1
Quantum DLT Drives & Media Chapter Overview Chapter Overview This chapter describes the following: • DLT Drive and Media Specifications • Using DLT Tape Cartridges • Troubleshooting DLT Drives 2-2 Chapter 2
Quantum DLT Drives & Media DLT Drive and Media Specifications DLT Drive and Media Specifications Table 2-1 DLT Drive Specifications Description Quantum DLT 8000 Performance Read/write transfer rate: maximum sustained (DLT Type IV media) • Non-compressed mode: 6.
Quantum DLT Drives & Media DLT Drive and Media Specifications Table 2-2 DLT Media Specifications Characteristic DLT Type IV Media Formatted capacity DLT 8000 format: • 40 GB (non-compressed) • 80 GB (2:1 typical compression) Basic description 0.5 inch (metal particle) Tape length 557 meters (1828 feet) Cartridge dimensions 10.4 x 10.4 x 2.5 cm (4.1 x 4.1 x 1.
Quantum DLT Drives & Media Using DLT Tape Cartridges Using DLT Tape Cartridges CAUTION Quantum DLT tape drives require special cleaning cartridges and data cartridges formatted specifically for Quantum DLT. To avoid damage to your tape drive, it is critical to use appropriate DLT cleaning cartridges and properly formatted DLT data cartridges.
Quantum DLT Drives & Media Using DLT Tape Cartridges Inspecting DLT Cartridges NOTE Make it a practice to visually inspect your tape cartridges when removing or loading them into your tape library or autoloader. Taking a few minutes to check the condition of the cartridges will lower the risk of repeated failures and help ensure uninterrupted backup. Repeated drive failures may indicate defective tapes.
Quantum DLT Drives & Media Using DLT Tape Cartridges Figure 2-1 Leader in Correct Position, Hub, and Door Lock Tab A Tape leader B Spring-loaded hub C Door lock Do NOT Use DLT Cartridges with: • Tape or leaders that have been touched with bare fingers (may transfer oils to the tape head). • Labels used on the top, bottom, sides, or back of the cartridge. Use the label slot only. CAUTION Always discard damaged tape cartridges.
Quantum DLT Drives & Media Using DLT Tape Cartridges Write-Protecting DLT Cartridges Each cartridge has a sliding write-protect switch. Using the write-protect switch ensures data safety for files that have been previously written to tape, preventing additional files from being written to that tape. To change the write-protect setting, move the write-protect switch (Figure 2-2): • Left to prevent data from being written to the cartridge.
Quantum DLT Drives & Media Using DLT Tape Cartridges Using DLT Cartridge Bar Code Labels Make it a practice to use bar code labels on your tape cartridges. Your host software may need to keep track of the following information and the associated bar code: • Date of format or initialization • Cartridge owner (such as a group or department) • Storage purpose TIP If the host software does not keep track of this information, create a method for doing so.
Quantum DLT Drives & Media Using DLT Tape Cartridges DLT Cartridge Bar Code Specifications NOTE Description Specification Data Cartridge Message 6-character: 2 alpha, 4 numeric, (AAnnnn) Cleaning Cartridge Message 6-character: ‘CLN’, 3 numeric (CLNnnn) Dimensions 5.6 cm x 2.1 cm (2.2 in x .82 in) Symbology code 39 without check digit Start/Stop Characters */* Narrow Bar 0.036 cm (0.014 in) Ratio 2.5:1 Print Quality ANSI Grade “A” You can order additional bar codes if needed.
Quantum DLT Drives & Media Using DLT Tape Cartridges Using DLT Cleaning Cartridges DLT drives should only be cleaned if the clean drive icon displays on the tape library or autoloader status bar. Only use the appropriate DLT cleaning cartridges and follow the instructions in your tape library or autoloader user’s guide. In general, replace DLT cleaning cartridges after twenty uses. Marking the label on the cleaning cartridge after each use will help you keep track of the number of uses.
Quantum DLT Drives & Media Using DLT Tape Cartridges Loading DLT Cartridges into a Magazine When inserting DLT cartridges into the tape library or autoloader magazine, ensure that each cartridge is positioned with the write-protect switch facing out of the magazine and away from the magazine handle (Figure 2-4). Push the tape into the slot until it “clicks” into place. Figure 2-4 Loading DLT Tapes into a Magazine NOTE The six-slot magazine depicted in Figure 2-4 is for an autoloader.
Quantum DLT Drives & Media Troubleshooting DLT Drives Troubleshooting DLT Drives This section describes the procedures for troubleshooting DLT drives, including: • Manually Rewinding a Stuck Tape • Removing a Stuck Tape • DLT Cleaning Issues • Media Issues Refer to your tape library or autoloader user’s guide for information on troubleshooting performance issues or other problems you may encounter. If you experience problems not covered by these manuals, contact your support representative.
Quantum DLT Drives & Media Troubleshooting DLT Drives 1. Place the DLT drive module on its top side so that the bottom of the drive module is facing up. 2. Insert a Phillips #2 screwdriver in the rewind hole on the bottom of the drive module and engage the screw. NOTE Gently move the ribbon cable to one side of the rewind hole if necessary. 3. Turn the screwdriver counter-clockwise to rewind the tape. Continue rewinding until the leader is seated in the tape cartridge.
Quantum DLT Drives & Media Troubleshooting DLT Drives Removing a Stuck Tape Use the following procedure and Figure 2-6 to remove a tape stuck in a DLT drive module: 1. Locate the spring-loaded latch near the opening on the drive module, and push it outward (item 1 in Figure 2-6). Ensure that you move both parts of the latch. 2. While holding the latch outward, rotate the thumb-wheel (drive gear) until the tape ejects (item 2 in Figure 2-6).
Quantum DLT Drives & Media Troubleshooting DLT Drives DLT Cleaning Issues Table 2-3 describes situations you may encounter with cleaning cartridges and how to resolve them. Table 2-3 DLT Cleaning Issues Problem Solution Recurring cleaning message. • If the message reappears after cleaning the drive, the front panel display will indicate the need to replace the cleaning cartridge. • Replace the existing cleaning cartridge with a new one.
Quantum DLT Drives & Media Troubleshooting DLT Drives Media Issues Table 2-4 describes situations you may encounter with media and how to resolve them. Table 2-4 Media Issues Problem Solution Cannot load tape into drive. Ensure your media and format type matches your drive type. (See “Using DLT Tape Cartridges” on page 2-5.) Tape has circular wear patterns around the hub. The drive hub may not be engaging the tape hub properly. Discard the tape and contact your support representative.
Quantum DLT Drives & Media Troubleshooting DLT Drives 2-18 Chapter 2
3 Benchmark DLT1 Drives & Media Chapter 3 3-1
Benchmark DLT1 Drives & Media Chapter Overview Chapter Overview This chapter describes the following: • DLT1 Drive and Media Specifications • Using DLT1 Tape Cartridges • Troubleshooting DLT1 Tape Drives 3-2 Chapter 3
Benchmark DLT1 Drives & Media DLT1 Drive and Media Specifications DLT1 Drive and Media Specifications Table 3-1 DLT1 Drive Specifications Description Benchmark DLT1 Performance Read/write transfer rate: maximum sustained (DLT Type IV media) • Non-compressed mode: 3.
Benchmark DLT1 Drives & Media DLT1 Drive and Media Specifications Table 3-2 DLT1 Media Specifications Characteristic DLT Type IV Media DLT1 formatted capacity • 40 GB (non-compressed • 80 GB (2:1 typical compression) Basic description 0.5 inch (metal particle) Tape length 557 meters (1828 feet) Cartridge dimensions 10.4 x 10.4 x 2.5 cm (4.1 x 4.1 x 1.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Using DLT1 Tape Cartridges CAUTION Benchmark DLT1 tape drives require special cleaning cartridges and data cartridges formatted specifically for DLT1. To avoid potential damage to your tape drive, it is critical to use appropriate DLT1 cleaning cartridges and properly formatted DLT1 data cartridges.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Using DLT Type IV Media CAUTION Always remove the cartridge from your DLT1 drive before powering down your tape library or autoloader. Leaving a cartridge in the drive when power is off can result in cartridge and drive damage. To prolong cartridge life, always return the cartridge to its storage case after removing it from the drive.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges NOTE If you experience any failures with reused Quantum DLT formatted (degaussed) cartridges, the degaussing may not have been sufficient to fully erase the data. If this happens, use another piece of media (preferably a new, unformatted DLT Type IV cartridge) before suspecting other system components.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Figure 3-1 Leader in Correct Position, Hub, and Door Lock Tab A Tape leader B Spring-loaded hub C Door lock Do NOT Use DLT1 Cartridges with: • Tape or leaders that have been touched with bare fingers (may transfer oils to the tape head). • Labels used on the top, bottom, sides, or back of the cartridge. Use the label slot only. CAUTION Always discard damaged tape cartridges.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Write-Protecting DLT1 Cartridges Each cartridge has a sliding write-protect switch. Using the write-protect switch ensures data safety for files that have been previously written to tape, preventing additional files from being written to that tape. To change the write-protect setting, move the write-protect switch (Figure 3-2): • Left to prevent data from being written to the cartridge.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Using DLT1 Cartridge Bar Code Labels Make it a practice to use bar code labels on your tape cartridges. Your host software may need to keep track of the following information and the associated bar code: • Date of format or initialization • Cartridge owner (such as a group or department) • Storage purpose TIP If the host software does not keep track of this information, create a method for doing so.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges NOTE You can order additional bar codes if needed. Bar code ordering information is provided with your tape library or autoloader.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Using DLT1 Cleaning Cartridges DLT1 drives should be cleaned when the clean drive icon displays on the tape library or autoloader status bar. Only use the appropriate DLT1 cleaning cartridges and follow the instructions in your tape library or autoloader user’s guide. In general, replace DLT1 cleaning cartridges after twenty uses. Marking the label on the cleaning cartridge after each use will help you keep track of the number of uses.
Benchmark DLT1 Drives & Media Using DLT1 Tape Cartridges Loading DLT1 Cartridges into a Magazine When inserting DLT1 cartridges into the tape library or autoloader magazine, ensure that each cartridge is positioned with the write-protect switch facing out of the magazine and away from the magazine handle (Figure 3-4). Push the tape into the slot until it “clicks” into place. Figure 3-4 Loading DLT1 Tapes into a Magazine NOTE The six-slot magazine depicted in Figure 3-4 is for an autoloader.
Benchmark DLT1 Drives & Media Troubleshooting DLT1 Tape Drives Troubleshooting DLT1 Tape Drives This section describes troubleshooting information for DLT1 drives, including: • Rewinding/Removing a Stuck Tape • DLT1 Cleaning Issues • Media Compatibility Issues • Miscellaneous Issues Refer to your tape library or autoloader user’s guide for information on troubleshooting performance issues or other problems you may encounter.
Benchmark DLT1 Drives & Media Troubleshooting DLT1 Tape Drives DLT1 Cleaning Issues Table 3-4 describes potential issues with cleaning cartridges and how to resolve them. Table 3-4 DLT1 Cleaning Issues Problem Solution Recurring cleaning message. • If the message reappears after cleaning the drive, the front panel display will indicate the need to replace the cleaning cartridge. • Replace the existing cleaning cartridge with a new one.
Benchmark DLT1 Drives & Media Troubleshooting DLT1 Tape Drives Media Compatibility Issues Table 3-5 lists potential error messages and what may cause them. Table 3-5 NOTE Media Compatibility Issues Message Cause Media format invalid for drive type. An attempt was made to load incompatible media into a DLT1 tape drive. Ensure your media and format is compatible with a DLT1 tape drive. (See “Using DLT1 Tape Cartridges” on page 3-5.) Media is write protected restore from tape successful.
Benchmark DLT1 Drives & Media Troubleshooting DLT1 Tape Drives Miscellaneous Issues Table 3-6 lists some miscellaneous issues that you may encounter and their potential causes. If you continue to have problems resolving these issues, contact your service representative for further assistance. Table 3-6 Miscellaneous Issues Issue Cause Receive ‘media invalid for drive type’ error. Message is cleared when navigating through the front panel menu tree.
Benchmark DLT1 Drives & Media Troubleshooting DLT1 Tape Drives 3-18 Chapter 3
4 HP Ultrium Drives & Media Chapter 4 4-1
HP Ultrium Drives & Media Chapter Overview Chapter Overview This chapter describes the following: • HP Ultrium Drive and Media Specifications • Using HP Ultrium Cartridges • Troubleshooting HP Ultrium Drives 4-2 Chapter 4
HP Ultrium Drives & Media HP Ultrium Drive and Media Specifications HP Ultrium Drive and Media Specifications Table 4-1 Ultrium Drive Specifications Description HP Ultrium Performance Read/write transfer rate: (maximum sustained) • Non-compressed mode: 15 MB/second • Compressed (2:1 typical): 30 MB/second Burst transfer rate 80 MB/second Average access time 90 seconds Loading time 25 seconds (maximum) Unloading time 13 seconds (maximum) MTBF 250,000 hours Interface type • Low-Voltage Differ
HP Ultrium Drives & Media HP Ultrium Drive and Media Specifications Table 4-2 Ultrium Media Specifications Characteristic Ultrium Media Formatted capacity 200 GB (2:1 typical compression) Basic description 0.5 inch (metal particle) Tape length 580 meters (1903 feet) Cartridge dimensions 10.2 x 10.5 x 2.2 cm (4.02 x 4.15 x 0.
HP Ultrium Drives & Media Using HP Ultrium Cartridges Using HP Ultrium Cartridges CAUTION HP Ultrium tape drives require special cleaning cartridges and data cartridges formatted specifically for HP Ultrium. To avoid damage to your tape drive, it is critical to use appropriate cleaning cartridges and properly formatted data cartridges. A unique feature of Ultrium tape cartridges is LTO-Cartridge Memory (LTO-CM). LTO-CM is an intelligent memory chip embedded into the cartridge.
HP Ultrium Drives & Media Using HP Ultrium Cartridges CAUTION Do not bulk erase Ultrium formatted cartridges. This will destroy prerecorded servo information and make the cartridges unusable. Write-Protecting Ultrium Cartridges Each cartridge has a sliding write-protect switch. Using the write-protect switch ensures data safety for files that have been previously written to tape, preventing additional files from being written to that tape.
HP Ultrium Drives & Media Using HP Ultrium Cartridges Using Ultrium Cartridge Bar Code Labels Make it a practice to use bar code labels on your tape cartridges. Your host software may need to keep track of the following information and the associated bar code: • Date of format or initialization • Cartridge owner (such as a group or department) • Storage purpose TIP If the host software does not keep track of this information, create a method for doing so.
HP Ultrium Drives & Media Using HP Ultrium Cartridges CAUTION The bar code label should be applied with the alphanumeric portion facing the hub side of the tape cartridge (Figure 4-3 on page 4-7). Never apply multiple labels onto a cartridge, as extra labels can cause the cartridge to jam in a tape drive. To ensure successful operation of your storage device, place the bar code label entirely within this area, ensuring that no part of the label is outside of the recessed area (Figure 4-4).
HP Ultrium Drives & Media Using HP Ultrium Cartridges NOTE You can order additional bar code labels if needed. Bar code label ordering information is provided with your tape library or autoloader. Table 4-3 Ultrium Cartridge Bar Code Specifications NOTE Description Specification Data Cartridge Message 8-character: 6 alphanumeric (user preference) followed by 2 alphanumeric (media ID) Cleaning Cartridge Message 8-character: ‘CLN’, ‘H’, 2 numeric, and 2 alphanumeric (media ID) Dimensions 7.
HP Ultrium Drives & Media Using HP Ultrium Cartridges Using Ultrium Cleaning Cartridges HP Ultrium drives should only be cleaned if the clean drive icon displays on the tape library or autoloader status bar. Only use appropriately formatted data cartridges and HP Ultrium cleaning cartridges and follow the instructions in your tape library or autoloader user’s guide. In general, replace cleaning cartridges after fifteen uses.
HP Ultrium Drives & Media Using HP Ultrium Cartridges Loading Ultrium Cartridges into a Magazine When inserting Ultrium cartridges into the tape library or autoloader magazine, ensure that each cartridge is positioned with the write-protect switch facing out of the magazine and towards the magazine handle (Figure 4-5). Push the tape into the slot until it “clicks” into place. Figure 4-5 Loading Tapes into a Magazine NOTE The six-slot magazine depicted in Figure 4-5 is for an autoloader.
HP Ultrium Drives & Media Troubleshooting HP Ultrium Drives Troubleshooting HP Ultrium Drives This section describes troubleshooting information for Ultrium drives, including: • Rewinding/Removing a Stuck Tape • Ultrium Cleaning Issues • LTO-Cartridge Memory (LTO-CM) Issues Refer to your tape library or autoloader user’s guide for information on troubleshooting performance issues or other problems you may encounter.
HP Ultrium Drives & Media Troubleshooting HP Ultrium Drives Ultrium Cleaning Issues Table 4-4 describes potential issues with cleaning cartridges and how to resolve them. Table 4-4 Ultrium Cleaning Issues Problem Solution Recurring cleaning message. • If the message reappears after cleaning the drive, the front panel display will indicate the need to replace the cleaning cartridge. • Replace the existing cleaning cartridge with a new one.
HP Ultrium Drives & Media Troubleshooting HP Ultrium Drives LTO-Cartridge Memory (LTO-CM) Issues The LTO-CM stores information that is normally stored in the header at the beginning of the tape, including identification and usage information such as the number of times the cartridge has been loaded, when it was last cleaned, and error logs. If the LTO-CM becomes damaged, you may experience difficulty with the cartridge.
Index A autoloader model 1/9, v B barcode DLT labels, 2-9–2-10 DLT1 labels, 3-10–3-11 Ultrium labels, 4-7–4-9 bulk erasing, 3-6, 3-7, 3-16, 4-6 C cleaning cartridge compatibility, 1-3 DLT, 1-3, 2-5 cleaning problems, 2-16 DLT1, 1-3, 3-5 cleaning problems, 3-15 Ultrium, 1-3, 4-5 cleaning problems, 4-13 using DLT, 2-11 using DLT1, 3-12 using Ultrium, 4-10 compatibility cleaning cartridges, 1-3 drives, 1-2 format, 1-2 media, 1-3 read-compatible, 1-2 write-compatible, 1-2 D data cartridge bulk erasing DLT1 med
Index general precautions, 1-7–1-8 media format, 1-3 supported, v Ultrium cleaning problems, 4-13 rewinding a stuck tape, 4-12 troubleshooting, 4-12–4-13 E electrostatic discharge (ESD), 1-7–1-8 F format compatibility, 1-2 DLT 4000, 1-2 DLT 8000, 1-2 DLT1, 1-2 media and drive, 1-3 Ultrium format DLT 7000, 1-2 H HP Library & Tape Tools, 1-5 hub, 2-6, 3-7 I inspecting media DLT, 2-6 DLT1, 3-7–3-8 interface DLT 8000, 2-3 DLT1, 3-3 Ultrium, 4-3 L leader, 3-7 library model 2/20, v 2Index model 4/40, v model
Index media cartridge life, 4-4 media shelf life, 4-4 performance, 4-3 supported drive types, v T tape cartridge bulk erasing DLT1 media, 3-6, 3-7, 3-16 bulk erasing Ultrium media, 4-6 degaussing DLT1 media, 3-6 degaussing Ultrium media, 4-6 DLT, 2-5 description, 2-4 dimensions, 2-4 length, 2-4 loading into magazine, 2-12 removing a stuck tape, 2-15 rewinding a stuck tape, 2-13–2-14 DLT Type IIIXT, 2-4 DLT Type IV, 2-5, 3-5 DLT1, 3-5 description, 3-4 dimensions, 3-4 length, 3-4 loading into magazine, 3-13
