Quantum DLTtape DLT 8000 User manual

DLTTM 8000 Tape System
Product Manual

.

DLTTM 8000 Tape System
Product Manual
May 7, 1999
81-60118-02

Quantum reserves the right to make changes and improvements to its products, without
incurring any obligation to incorporate such changes or improvements in units previously sold
or shipped. Quantum reserves the right to make changes to this product manual without
incurring any obligation to notify recipients of earlier versions of the product manual.
You can request Quantum publications from your Quantum Sales Representative or
order them directly from Quantum.
Publication Number: 81-60118-02, May 7, 1999
SERVICE CENTERS
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Service
715 Sycamore Avenue 50 Tagore Lane #b1-04 Quantum Ireland, Ltd.
Milpitas, California 95035 Singapore, 2678 Finnabair Industrial Park
Phone [phone] Phone: [phone] Dundalk
FAX: (800) 4DISKFAX FAX: [phone] County Louth, Ireland
BBS: [phone] Phone: [phone]
Fax: [phone]
DLT and DLTtape are trademarks of Quantum Corporation.
Copyright 1999 by Quantum Corporation. All rights reserved. Printed in U.S.A.

USER MANUAL STATEMENTS FOR CLASS A EQUIPMENT (INTEGRATIBLE TAPE SYSTEM)
This equipment generates, uses, and may emit radio frequency energy. The equipment has been type
tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC rules,
which are designed to provide reasonable protection against such radio frequency interference.
Operation of this equipment in a residential area may cause interference in which case the user at his
own expense will be required to take whatever measures may be required to correct the interference.
Any modifications to this device - unless expressly approved by the manufacturer - can void the user’s
authority to operate this equipment under part 15 of the FCC rules.
Note: Additional information on the need to interconnect the device with shielded (data) cables or the
need for special devices, such as ferrite beads on cables, is required if such means of interference
suppression was used in the qualification test for the device. This information will vary from device to
device and needs to be obtained from the EMC group or product manager.
Warning!
This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
Achtung!
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses
Gerätes Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende
Gegenmaßnahmen verantwortlich ist.
Warning!
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Attention!
Ceci est un produit de Classe A. Dans un environnement domestique, ce produit risque de créer des
interférences radioélectriques, il appartiendra alors à l'utilisateur de prendre les mesures spécifiques
appropriées.

USER MANUAL STATEMENTS FOR CLASS A EQUIPMENT (continued)
USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT (TABLETOP VERSION)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. Any modifications to this device - unless expressly approved by the
manufacturer - can void the user’s authority to operate this equipment under part 15 of the FCC rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference and (2)
This device must accept any interference that may cause undesirable operation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
•Consult the dealer or an experienced radio/TV technician for help.
Note: Additional information on the need to interconnect the device with shielded (data) cables or the need
for special devices, such as ferrite beads on cables, is required if such means of interference suppression was
used in the qualification test for the device. This information will vary from device to device and needs to be
obtained from the EMC group or product manager.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT (continued)

Quantum DLT 8000 Tape System v
Table of Contents
Page
REVISION HISTORY...............................................................................................xxiii
ABOUT THIS MANUAL.........................................................................................xxvii
CHAPTER 1: GENERAL DESCRIPTION AND SPECIFICATIONS
1.1 GENERAL DESCRIPTION.................................................................................1-1
1.2 KEY FEATURES.................................................................................................1-1
1.3 SPECIFICATIONS..............................................................................................1-2
1.3.1 Drive Capacity...............................................................................................1-2
1.3.2 Interface Type ...............................................................................................1-2
1.3.3 Performance and Timing Specifications.........................................................1-3
1.3.4 Reliability (Projected) ...................................................................................1-4
1.3.5 Physical Specifications..................................................................................1-5
1.3.6 Temperature and Humidty............................................................................1-6
1.3.7 Operating Air Velocity ..................................................................................1-7
1.3.8 Vibration, Shock, and Drop Specifications....................................................1-7
1.3.9 Acoustic Emissions .....................................................................................1-10
1.3.10 Electromagnetic Emissions..........................................................................1-10
1.3.11 Power Requirements ...................................................................................1-11
1.3.12 Current Requirements.................................................................................1-12
1.3.13 Tape System Recording Type ......................................................................1-13
1.3.14 DLTtape Recording Media Specifications....................................................1-14
1.3.15 Electromagnetic Interference (EMI) Susceptibility......................................1-15

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vi Quantum DLT 8000 Tape System
CHAPTER 2: CONFIGURING, INSTALLING AND OPERATING THE TAPE
SYSTEM
2.1 Safety, Handling, and Electrostatic Discharge (ESD) Protection..........................2-1
2.1.1 Safety Precautions........................................................................................2-1
2.1.2 Handling.......................................................................................................2-1
2.1.3 Electrostatic Discharge (ESD) Protection.....................................................2-2
2.2 Configuring and Installing an Integral Tape System .............................................2-3
2.2.1 Setting the SCSI ID......................................................................................2-4
2.2.2 Setting TERM PWR......................................................................................2-6
2.2.3 Setting Parity Checking ................................................................................2-7
2.2.4 Installing the Tape System............................................................................2-8
2.2.4.1 Securing the Tape System in Bay or Chassis.........................................2-8
2.2.4.2 Connecting SCSI Bus and Power Cables.............................................2-10
2.2.4.3 The Loader Connector........................................................................2-13
2.3 Configuring and Installing a Tabletop Tape System ..........................................2-15
2.3.1 Selecting SCSI ID.......................................................................................2-16
2.3.2 Connecting the SCSI Bus Cables................................................................2-17
2.3.3 Installing the AC Power Cord ....................................................................2-18
2.4 The Tape Cartridge ...........................................................................................2-21
2.4.1 Care and Handling of Tape Cartridges........................................................2-22
2.4.2 Tape Cartridge Write-Protect Switch..........................................................2-24
2.4.3 Checking a Tape Cartridge..........................................................................2-26
2.4.4 Loading a Cartridge ....................................................................................2-27
2.4.5 Unloading a Cartridge.................................................................................2-29
2.4.6 How and When to Use a Cleaning Tape Cartridge ......................................2-30
2.5 Operating the Tape System – Controls and Indicators ......................................2-33
2.5.1 Unload Button............................................................................................2-34
2.5.2 Cartridge Insert/Release Handle.................................................................2-34
2.5.3 Selecting Density........................................................................................2-35
2.6 Power On Self Test (POST) and Indicator Activity During POST....................2-39
2.7 Tape System Operating Modes and Indicator Activity ......................................2-41

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Quantum DLT 8000 Tape System vii
2.8 Using the DLT 8000 Tape System’s No Trouble Found (NTF) Test Feature.....2-45
2.9 Troubleshooting ................................................................................................2-47
CHAPTER 3: SCSI DESCRIPTION
3.1 SCSI Overview....................................................................................................3-1
3.2 SCSI Commands .................................................................................................3-3
3.3 Signal States........................................................................................................3-7
3.3.1 Signal Values ................................................................................................3-7
3.3.2 SCSI ID Bits .................................................................................................3-7
3.4 SCSI Signals........................................................................................................3-9
3.4.1 SCSI Signal Definitions.................................................................................3-9
3.4.2 Signal Bus Timing.........................................................................................3-9
3.5 SCSI Bus Phases ...............................................................................................3-13
3.5.1 BUS FREE Phase ........................................................................................3-13
3.5.2 ARBITRATION Phase................................................................................3-15
3.5.3 SELECTION Phase.....................................................................................3-16
3.5.4 RESELECTION Phase ................................................................................3-17
3.5.5 Information Transfer Phases .......................................................................3-19
3.5.5.1 Asynchronous Data Transfer...............................................................3-22
3.5.5.2 Synchronous Data Transfer.................................................................3-23
3.5.5.3 Signal Restrictions Between Phases.....................................................3-24
3.5.5.4 STATUS Phase....................................................................................3-25
3.6 SCSI Bus Conditions.........................................................................................3-27
3.6.1 Attention Condition....................................................................................3-27
3.6.2 Reset Condition...........................................................................................3-28
3.6.3 Queued Unit Attentions..............................................................................3-29

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viii Quantum DLT 8000 Tape System
CHAPTER 4: SCSI MESSAGES
4.1 Message Format...............................................................................................4-1
4.2 Supported SCSI Messages ...............................................................................4-2
4.2.1 ABORT Message (06h) ..........................................................................4-2
4.2.2 BUS DEVICE RESET Message (0Ch).....................................................4-2
4.2.3 COMMAND COMPLETE Message (00h)...............................................4-5
4.2.4 DISCONNECT Message (04h) ...............................................................4-6
4.2.5 IDENTIFY Message (80h - FFh).............................................................4-7
4.2.6 IGNORE WIDE RESIDUE Message (23h)..............................................4-8
4.2.7 INITIATOR DETECTED ERROR Message (05h)...................................4-9
4.2.8 LINKED COMMAND COMPLETE Message (0Ah).............................4-10
4.2.9 LINKED COMMAND COMPLETE, with Flag Message (0Ah)............4-10
4.2.10 MESSAGE PARITY ERROR Message (09h) ........................................4-10
4.2.11 MESSAGE REJECT Message (07h)......................................................4-10
4.2.12 NO OPERATION (08h).........................................................................4-11
4.2.13 RESTORE POINTERS Message (03h)..................................................4-11
4.2.14 SAVE DATA POINTER Message (02h)................................................4-11
4.2.15 SYNCHRONOUS DATA TRANSFER REQUEST Message (01h).........4-12
4.2.16 WIDE DATA TRANSFER REQUEST Message (01h)............................4-13
CHAPTER 5: SCSI COMMANDS
5.1 Overview of Command and Status Processing................................................5-1
5.1.1 SCSI Pointers...........................................................................................5-3
5.1.2 Command Descriptor Block.....................................................................5-4
5.1.3 Status/Error Reporting.............................................................................5-7
5.1.4 DATA-Phase Command Components......................................................5-8
5.1.5 Unit Attention Condition.......................................................................5-10
5.1.6 Behavior at Power-On and SCSI Bus Reset ...........................................5-11

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Quantum DLT 8000 Tape System ix
5.1.7 Data Cache and Tape Write Interaction..................................................5-12
5.2 SCSI Command Descriptions in this Manual................................................5-13
5.3 ERASE Command (19h)..............................................................................5-15
5.4 INQUIRY Command (12h)..........................................................................5-17
5.4.1 STANDARD INQUIRY DATA Page......................................................5-18
5.4.2 VENDOR-UNIQUE INQUIRY Data ......................................................5-22
5.4.3 SUPPORTED VITAL PRODUCT Data Page..........................................5-23
5.5 LOAD UNLOAD Command (1Bh) .............................................................5-29
5.6 LOCATE Command (2Bh) ..........................................................................5-33
5.7 LOG SELECT Command (4Ch) ..................................................................5-35
5.7.1 Log Detection Summary in LOG SELECT Command Descriptor Block.5-37
5.7.2 Operation of LOG SELECT....................................................................5-37
5.7.3 Log Select Page Format..........................................................................5-38
5.7.4 Error Detection Summary in Log Select Pages .......................................5-41
5.8 LOG SENSE Command (4Dh)....................................................................5-43
5.8.1 Error Detection Summary in LOG SENSE Command Descriptor Block 5-46
5.8.2 SUPPORTED PAGES Log Page (Page 00h)...........................................5-47
5.8.3 READ (Page 03h) / WRITE (Page 02h) ERROR LOG SENSE Page ...5-48
5.8.4 LAST n ERROR EVENTS Page (07h)...................................................5-52
5.8.5 TAPEALERT Page (2Eh).......................................................................5-54
5.8.6 READ / WRITE COMPRESSION Page (32h).......................................5-58
5.8.7 DEVICE WELLNESS Page (33h)..........................................................5-62
5.8.8 DEVICE STATUS Page (3Eh)...............................................................5-65
5.9 MODE SELECT Command (6) / (10) (15h / 55h) ......................................5-69
5.9.1 Mode Parameter List ..............................................................................5-71
5.9.1.1 Mode Parameter Header....................................................................5-72
5.9.1.2 Mode Parameter Block Descriptor.....................................................5-74
5.9.1.3 Mode Page Descriptors......................................................................5-76
5.9.2 READ / WRITE ERROR RECOVERY Page (01h).................................5-77

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xQuantum DLT 8000 Tape System
5.9.3 DISCONNECT / RECONNECT Page (02h).........................................5-79
5.9.4 CONTROL MODE Page (0Ah).............................................................5-81
5.9.5 DATA COMPRESSION Page (0Fh).....................................................5-83
5.9.6 DEVICE CONFIGURATION Page (10h) .............................................5-85
5.9.7 MEDIUM PARTITION Page (11h).......................................................5-88
5.9.8 TAPEALERT Page (1Ch)......................................................................5-90
5.9.9 EEPROM VENDOR UNIQUE Page (3Eh)............................................5-93
5.9.10 Changeable Parameters within MODE SELECT.................................5-102
5.10 MODE SENSE (6) / (10) Command (1Ah / 5Ah)....................................5-103
5.10.1 MODE SENSE Data Headers .............................................................5-106
5.10.2 MODE SENSE Block Descriptor .........................................................5-109
5.10.3 MODE SENSE Mode Pages.................................................................5-112
5.10.3.1 READ / WRITE ERROR RECOVERY Page (01h)........................5-114
5.10.3.2 DISCONNECT / RECONNECT Page (02h) ................................5-116
5.10.3.3 CONTROL MODE Page (0Ah)....................................................5-118
5.10.3.4 DATA COMPRESSION Page (0Fh)............................................5-120
5.10.3.5 DEVICE CONFIGURATION Page (10h) ....................................5-122
5.10.3.6 MEDIUM PARTITION Page (11h)..............................................5-125
5.10.3.7 TAPEALERT PAGE (1Ch) .........................................................5-127
5.10.3.8 EEPROM VENDOR-UNIQUE page (3Eh)................................... 5-130
5.11 PREVENT / ALLOW MEDIUM REMOVAL Command (1Eh) .................. 5-131
5.12 READ Command (08h)............................................................................. 5-133
5.13 READ BLOCK LIMITS Command (05h)..................................................5-137
5.14 READ BUFFER Command (3Ch) ..............................................................5-139
5.14.1 Combined Header and Data Mode....................................................... 5-141
5.14.2 Data Mode...........................................................................................5-141
5.14.3 Descriptor Mode..................................................................................5-141
5.15 READ POSITION Command (34h)..........................................................5-143
5.16 RECEIVE DIAGNOSTIC RESULTS Command (1Ch)............................. 5-147

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Quantum DLT 8000 Tape System xi
5.17 RELEASE UNIT Command (17h).............................................................5-149
5.18 REQUEST SENSE Command (03h)..........................................................5-151
5.19 RESERVE UNIT Command (16h).............................................................5-165
5.20 REWIND Command (01h).........................................................................5-169
5.21 SEND DIAGNOSTIC Command (1Dh)....................................................5-171
5.22 SPACE Command (11h)............................................................................5-177
5.23 TEST UNIT READY Command (00h).......................................................5-179
5.24 VERIFY Command (13h) ..........................................................................5-181
5.25 WRITE Command (0Ah) ...........................................................................5-183
5.26 WRITE BUFFER Command (3Bh).............................................................5-187
5.26.1 Write Combined Header and Data Mode (000b) ..................................5-188
5.26.2 Write Data Mode (010b).......................................................................5-188
5.26.3 Download Microcode Mode (100b)......................................................5-188
5.26.4 Download Microcode and Save Mode (101b).......................................5-189
5.27 WRITE FILEMARKS Command (10h)......................................................5-191
Appendix A: Definition of Vendor Unique Sense Data Information..........................A-1
Appendix B: Sense Key Information..........................................................................B-1
Appendix C: EEPROM-Resident Bugcheck and Event Logs.......................................C-1
Appendix D: Updating the Firmware..........................................................................D-1
Appendix E: Running the No Trouble Found (NTF) Test Via the Library Port.......... E-1
Appendix F: Visual Inspection Procedure for DLTtape Cartridges............................. F-1

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xii Quantum DLT 8000 Tape System

Table of Contents
Quantum DLT 8000 Tape System xiii
FIGURES
Figure 2–1 Location of SCSI ID Connector Block....................................................2-4
Figure 2–2 Jumper Installed on Pin Pair 3 / 4 Enables Termination Power (TERM
PWR)......................................................................................................2-6
Figure 2–3 Jumper Installed on Pin Pair 1 / 2 Disables Parity Checking...................2-7
Figure 2–4 Locations and Dimensions for Mounting Holes......................................2-9
Figure 2–5 Connectors for SCSI Bus Cable and Power Cable.................................2-10
Figure 2–6 Loader Connector Block.......................................................................2-13
Figure 2–7 DLT 8000 Tabletop Tape System Rear Panel .......................................2-16
Figure 2–8 Location of SCSI Bus Connectors on Rear Panel (Tabletop Version)...2-17
Figure 2–9 AC Power Cord Plug End......................................................................2-19
Figure 2–10 Location of AC Power Cord Connector on Rear Panel (Tabletop
Version)...............................................................................................2-20
Figure 2-11 Write-Protect Switch on Tape Cartridge................................................2-25
Figure 2–12 Front Panel of Tape System..................................................................2-27
Figure 4–1Extended Message — Data Format..........................................................4-4
Figure 4–2IDENTIFY Message — Data Format .......................................................4-7
Figure 4–3 IGNORE WIDE RESIDUE Message — Data Format..............................4-8
Figure 4–4 Synchronous Data Transfer Request Message — Data Format.............4-12
Figure 4–5 Wide Data Transfer Request Message — Data Format..........................4-13
Figure 5–1Typical Command Descriptor Block — Data Format...............................5-4
Figure 5–2Command Descriptor Block Control Field — Data Format......................5-6
Figure 5–3 ERASE Command Descriptor Block — Data Format.............................5-15
Figure 5–4 INQUIRY Command Descriptor Block — Data Format.........................5-17
Figure 5–5 Standard Inquiry Data Page — Data Format .........................................5-19
Figure 5–6 INQUIRY Vendor Unique Bytes Definitions..........................................5-22
Figure 5–7 Supported Vital Product Data Pages Page — Data Format....................5-24
Figure 5–8 Unit Serial Number Page — Data Format..............................................5-25
Figure 5–9 Firmware Build Information Page — Data Format.................................5-26
Figure 5–10 Subsystem Components Revision Page — Data Format.......................5-27
Figure 5–11 LOAD UNLOAD Command Descriptor Block — Data Format............5-30

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xiv Quantum DLT 8000 Tape System
Figure 5–12 LOCATE Command Descriptor Block — Data Format........................5-33
Figure 5–13 LOG SELECT Command Descriptor Block — Data Format ................5-35
Figure 5–14 Log Page Header Format......................................................................5-38
Figure 5–15 Log Parameters Format........................................................................5-39
Figure 5–16 LOG SENSE Command Descriptor Block — Data Format ..................5-43
Figure 5–17 Supported Pages Page — Data Format.................................................5-47
Figure 5–18 READ / WRITE Error LOG SENSE Header Format ............................5-48
Figure 5–19 Log Parameters Format for READ / WRITE Error LOG SENSE Page .5-49
Figure 5–20 Last n Error Events LOG SENSE Header Format................................5-52
Figure 5–21 Log Parameters Format for LAST n ERROR EVENTS LOG SENSE
Page......................................................................................................5-53
Figure 5–22 TapeAlert LOG SENSE Header Format...............................................5-54
Figure 5–23 Log Parameters Format for TapeAlert Page..........................................5-55
Figure 5–24 READ / WRITE COMPRESSION RATIO LOG SENSE Header
Format..................................................................................................5-58
Figure 5–25 Log Parameters Format for READ / WRITE COMPRESSION RATIO
LOG SENSE Page (Parameter Codes 00h and 01h).............................5-59
Figure 5–26 Log Parameters Format for READ / WRITE COMPRESSION RATIO
LOG SENSE Page (Parameter Codes 02h through 09h) ......................5-60
Figure 5–27 DEVICE WELLNESS LOG SENSE Header Format ............................5-62
Figure 5–28 Log Parameters Format for DEVICE WELLNESS LOG SENSE Page .5-63
Figure 5–29 DEVICE STATUS LOG SENSE Header Format..................................5-65
Figure 5–30 Log Parameters Format for DEVICE STATUS LOG SENSE Page ......5-66
Figure 5–31 Log Parameters Format for DEVICE STATUS LOG SENSE Page
Parameter 0001h (Cleaning Related) ...................................................5-67
Figure 5–32 MODE SELECT (6) and (10) Command Descriptor Blocks —
Data Format.........................................................................................5-70
Figure 5–33 MODE SELECT Mode Parameter List — Data Format........................5-71
Figure 5–34 Mode Parameter Header — Data Format .............................................5-72
Figure 5–35 Mode Parameter Block Descriptor — Data Format ..............................5-74
Figure 5–36 MODE SELECT Page Descriptor — Data Format................................5-76
Figure 5–37 READ/WRITE Error Recovery Page — Data Format............................5-77

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Quantum DLT 8000 Tape System xv
Figure 5–38 Disconnect / Reconnect Page — Data Format .....................................5-79
Figure 5–39 Control Mode Page Format Descriptor — Data Format........................5-81
Figure 5–40 Data Compression Page Format Descriptor — Data Format.................5-83
Figure 5–41 Device Configuration Page — Data Format ..........................................5-85
Figure 5–42 Medium Partition Page Format Descriptor — Data Format..................5-88
Figure 5–43 TapeAlert Page Format Descriptor — Data Format ..............................5-90
Figure 5–44 EEPROM Vendor Unique Page — Data Format....................................5-93
Figure 5–45 EEPROM Vendor Unique Page “Vendor ID” Sample — Data
Format................................................................................................5-100
Figure 5–46 EEPROM Vendor Unique Page “Forced Density” Example — Data
Format................................................................................................5-101
Figure 5–47 MODE SENSE (6) Command Descriptor Block — Data Format........5-103
Figure 5–48 MODE SENSE (10) Command Descriptor Block — Data Format......5-104
Figure 5–49 MODE SENSE (6) Data Header — Data Format ..............................5-106
Figure 5–50 MODE SENSE (10) Data Header — Data Format.............................5-107
Figure 5–51 MODE SENSE Block Descriptor — Data Format..............................5-109
Figure 5–52 MODE SENSE Page Descriptor — Data Format ...............................5-112
Figure 5–53 READ / WRITE Error Recovery Page — Data Format.......................5-114
Figure 5–54 Disconnect / Reconnect Page — Data Format ...................................5-116
Figure 5–55 Control Mode Page — Data Format...................................................5-118
Figure 5–56 Data Compression Page — Data Format............................................5-120
Figure 5–57 Device Configuration Page — Data Format ........................................5-122
Figure 5–58 Medium Partition Page — Data Format.............................................5-125
Figure 5–59 TapeAlert Page Format Descriptor — Data Format ............................5-127
Figure 5–60 PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor
Block — Data Format .........................................................................5-131
Figure 5–61 READ Command Descriptor Block — Data Format ...........................5-133
Figure 5–62 READ BLOCK LIMITS Command Descriptor Block — Data Format5-137
Figure 5–63 READ BLOCK LIMITS Data — Data Format....................................5-138
Figure 5–64 READ BUFFER Command Descriptor Block — Data Format ............5-139

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xvi Quantum DLT 8000 Tape System
Figure 5–65 READ BLOCK LIMITS Header — Data Format................................5-141
Figure 5–66 READ BUFFER Descriptor — Data Format.......................................5-142
Figure 5–67 READ POSITION Command Descriptor Block — Data Format........5-143
Figure 5–68 READ POSITION — Data Format.....................................................5-144
Figure 5–69 RECEIVE DIAGNOSTIC RESULTS Command Descriptor Block — Data
Format................................................................................................5-147
Figure 5–70 RECEIVE DIAGNOSTIC RESULTS — Data Format........................5-148
Figure 5–71 RELEASE UNIT Command Descriptor Block — Data Format...........5-149
Figure 5–72 REQUEST SENSE Command Descriptor Block — Data Format .......5-151
Figure 5–73 REQUEST SENSE — Data Format....................................................5-153
Figure 5–74 REQUEST SENSE Command Descriptor Block — Data Format .......5-165
Figure 5–75 REWIND Command Descriptor Block — Data Format......................5-169
Figure 5–76 SEND DIAGNOSTIC Command Descriptor Block — Data Format ..5-171
Figure 5–77 SEND DIAGNOSTIC Parameter List — Data Format.......................5-173
Figure 5–78 SPACE Command Descriptor Block — Data Format .........................5-177
Figure 5–79 TEST UNIT READY Command Descriptor Block — Data Format.....5-179
Figure 5–80 VERIFY Command Descriptor Block — Data Format........................5-181
Figure 5–81 WRITE Command Descriptor Block — Data Format .........................5-183
Figure 5–82 WRITE BUFFER Command Descriptor Block — Data Format ..........5-187
Figure 5–83 WRITE FILEMARKS Command Descriptor Block — Data Format ...5-191
Figure F–1 Location of One of the Two Reel Lock Tabs on the DLTtape..................F-3
Figure F–2 Location of Reel Lock Opening and Spring-Loaded Hub on Bottom of
DLTtape Cartridge..................................................................................F-4
Figure F–3 Opening the Door on a DLTtape Cartridge Showing Tape Leader Loop in
its Correct Position.................................................................................F-5
Figure F–4 Three Examples of Tape Cartridges with Damage Visible During Visual
Inspection...............................................................................................F-6
Figure F–5 Location of Write Protect Switch............................................................F-7