Quantum 818120201 User Manual

SDLT 600 Fibre Channel Interface Guide

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SDLT 600 Fibre Channel Interface Guide

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SDLT 600 Fibre Channel Interface Guide

Revision History

All revisions made to this document are listed below in chronological order.

Document Release Date Summary of Changes

A01 October 10,

2003

A02 July 9, 2004 Maintenance release. All functions and features of the V25

Initial release.

firmware release are described.

iii

SDLT 600 Fibre Channel Interface Guide

SDLT 600 Fibre Channel Interface Guide SCSI Commands

81-81202-01 REV A02

Ta ble of Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Purpose and Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Referenced Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Structure of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

For More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Reader Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Fibre Channel Protocol and SCSI . . . . . . . . . . . . . . . . . . . . . . . 2-1

Background Information About Fibre Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Fibre Channel Interface Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Relationship Between Fibre Channel and SCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

World-wide Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Implementation Details for SDLT 600 Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Task Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Persistent Reservations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Link Service and Unsolicited Control Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Basic Link Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Extended Link Service Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Extended Link Service Loop Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

FC-4 Link Service Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Unsolicited Control / Name Server Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

3 SCSI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Overview of SCSI Command and Status Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Unit Attention Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

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Table of Contents SDLT 600 Fibre Channel Interface Guide

Behavior at Power-On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Data Cache and Tape Write Interaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

SCSI Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

ERASE Command (19h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

INQUIRY Command (12h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Standard Inquiry Data Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Vendor Specific Inquiry Data Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Vital Product Data Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Supported Vital Product Data Page (00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Unit Serial Number Page (80h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Device Identification Page (83h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Firmware Build Information Page (C0h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Subsystem Components Revision Page (C1h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

LOAD UNLOAD Command (1Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

LOCATE Command (2Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

LOG SELECT Command (4Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Overview: LOG SELECT Command Descriptor Block Errors . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Operation of LOG SELECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

LOG SELECT Log Page Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Error Detection Summary in LOG SELECT Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

LOG SENSE Command (4Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Error Summary in LOG SENSE Command Descriptor Block . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Supported Pages Log Page (Page 00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Read (Page 03h) / Write (Page 02h) Error Log Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

LAST n ERROR EVENTS Log Page (07h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Sequential Access Device Log Page (0Ch). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

Temperature Log Page (0Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49

TapeAlert Log Page (2Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Read / Write Compression Log Page (32h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55

Device Wellness Log Page (33h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

Device Status Log Page (3Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62

MODE SELECT (6) / (10) Command (15h / 55h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65

Mode Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67

Mode Parameter Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Mode Parameter Block Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Mode Page Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73

Read / Write Error Recovery Page (01h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74

Disconnect / Reconnect Page (02h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Control Mode Page (0Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78

Data Compression Page (0Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

vi July 2004 81-81202-01 REV A02

SDLT 600 Fibre Channel Interface Guide Table of Contents

Device Configuration Page (10h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Medium Partition Page (11h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-85

Fibre Channel Logical Unit Control Page (18h). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-87

Fibre Channel Port Control Page (19h). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88

TapeAlert Page (1Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-90

Vendor Specific Configuration Page (25h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93

Disaster Recovery Control Page (3Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-95

EEPROM Vendor Specific Page (3Eh). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96

Changeable Parameters Within MODE SELECT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103

MODE SENSE (6) / (10) Command (1Ah / 5Ah). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105

MODE SENSE Data Headers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-107

MODE SENSE Block Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-109

MODE SENSE Mode Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111

Read / Write Error Recovery Page (01h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112

Disconnect / Reconnect Page (02h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-114

Control Mode Page (0Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-116

Data Compression Page (0Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-118

Device Configuration Page (10h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-120

Medium Partition Page (11h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-123

Fibre Channel Logical Unit Control Page (18h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-124

Fibre Channel Port Control Page (19h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-125

TapeAlert Page (1Ch). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-127

Vendor Specific Configuration Control Page (25h). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129

Disaster Recovery Control Page (3Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-131

EEPROM Vendor Specific Page (3Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132

PERSISTENT RESERVE IN Command (5Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-133

PERSISTENT RESERVE OUT Command (5Fh). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-140

PREVENT / ALLOW MEDIUM REMOVAL Command (1Eh) . . . . . . . . . . . . . . . . . . . . . . . . . 3-150

READ Command (08h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-151

Filemark and End-of-Data Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152

End-of-Medium/Partition Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-153

READ ATTRIBUTE Command (8Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-154

Error Summary for the READ ATTRIBUTE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-155

READ ATTRIBUTE Service Action Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-156

ATTRIBUTE VALUES Service Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-157

ATTRIBUTE LIST Service Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-158

VOLUME LIST Service Action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-159

PARTITION LIST Service Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-160

Enhanced Medium Auxiliary Memory (EMAM) Attributes . . . . . . . . . . . . . . . . . . . . . . . . . 3-161

Attribute Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-161

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Table of Contents SDLT 600 Fibre Channel Interface Guide

Attribute Identifier Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163

Unique Features of the SDLT Tape Drive Implementation of Read / Write Attributes . . . . . 3-177

A Comparison of MAM and EMAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-177

READ BLOCK LIMITS Command (05h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-179

READ BUFFER Command (3Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-181

Retrieving Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-183

Read Data from the Saved Buffer (A1h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-183

Read Data from the Live Buffer (A2h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-183

Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-184

Combined Header and Data Mode (00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-184

Data Mode (02h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-185

Descriptor Mode (03h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-185

Read Data from Echo Buffer (0Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-185

Echo Buffer Descriptor Mode (0Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-186

READ POSITION Command (34h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-187

Read Position Data — Short Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-188

Read Position Data — Long Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-190

RECEIVE DIAGNOSTIC RESULTS Command (1Ch). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-192

REPORT DENSITY SUPPORT Command (44h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-194

REPORT DEVICE IDENTIFIER Command (A3h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-199

REPORT LUNS Command (A0h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-201

REPORT SUPPORTED OPERATION CODES Command (A3h) . . . . . . . . . . . . . . . . . . . . . . . . 3-203

All_commands Parameter Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-205

One_command Parameter Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-207

REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS Command (A3h) . . . . . . . . . . 3-209

REQUEST SENSE Command (03h). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-211

REWIND Command (01h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-223

SEND DIAGNOSTIC Command (1Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-224

Level 1 Test: Electronics Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-225

Level 2 Test: Write / Read Functionality Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-225

SET DEVICE IDENTIFIER Command (A4h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-228

SPACE Command (11h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-230

TEST UNIT READY Command (00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-232

VERIFY Command (13h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-233

WRITE Command (0Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-234

WRITE ATTRIBUTE Command (8Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-236

Error Summary for the WRITE ATTRIBUTE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-238

WRITE BUFFER Command (3Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-240

Write Combined Header and Data Mode (00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-241

Write Data Mode (02h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-241

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Table of Contents SDLT 600 Fibre Channel Interface Guide

Download Microcode Mode (04h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-242

Download Microcode and Save Mode (05h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-242

Write Data to Echo Buffer Mode (0Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-242

WRITE FILEMARKS Command (10h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-243

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81-81202-01 REV A02

List of Tables

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Table 1-1. Typographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 Fibre Channel Protocol and SCSI . . . . . . . . . . . . . . . . . . . . . . . 2-1

Table 2-1. Supported Task Management Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Table 2-2. Supported Basic Link Service Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-3. Supported Extended Link Service Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Table 2-4. Supported Extended Link Service Loop Initialization Commands. . . . . . . . . . . . . . . . . 2-7

Table 2-5. Supported FC-4 Link Service Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Table 2-6. Supported Name Server Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

3 SCSI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Table 3-1. SCSI Commands Supported by SDLT Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Table 3-2. Fields Common to Many SCSI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 3-3. ERASE Command Descriptor Block — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . 3-7

Table 3-4. INQUIRY Command Descriptor Block — Field Descriptions. . . . . . . . . . . . . . . . . . . . 3-9

Table 3-5. Standard Inquiry Data Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Table 3-6. Vendor Specific Inquiry Data Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-15

Table 3-7. Unit Serial Number Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Table 3-8. Device Identification Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Table 3-9. Vendor-unique Logical Unit Identifier — Field Descriptions. . . . . . . . . . . . . . . . . . . . 3-19

Table 3-10. Logical Unit NAA Identifier — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Table 3-11. Port NAA Identifier — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Table 3-12. Firmware Build Information Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-23

Table 3-13. Subsystem Components Revision Page — Field Descriptions. . . . . . . . . . . . . . . . . . 3-25

Table 3-14. LOAD UNLOAD Command Descriptor Block — Field Descriptions . . . . . . . . . . . 3-26

Table 3-15. LOCATE Command Descriptor Block — Field Descriptions . . . . . . . . . . . . . . . . . . 3-28

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List of Tables SDLT 600 Fibre Channel Interface Guide

Table 3-16. LOG SELECT Command Descriptor Block — Field Descriptions . . . . . . . . . . . . . . 3-30

Table 3-17. LOG SELECT Page-clearing Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Table 3-18. LOG SELECT Log Page Header — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . 3-32

Table 3-19. LOG SELECT Log Parameters — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Table 3-20. LOG SENSE Command Descriptor Block — Field Descriptions . . . . . . . . . . . . . . . 3-38

Table 3-21. Read / Write Error LOG SENSE Header — Field Descriptions . . . . . . . . . . . . . . . . . 3-41

Table 3-22. Log Parameters for Read / Write Error LOG SENSE Page —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Table 3-23. Last n Error Events LOG SENSE Header — Field Descriptions . . . . . . . . . . . . . . . . 3-46

Table 3-24. Log Parameters for Last n Error Events LOG SENSE Page — Field Descriptions . . 3-46

Table 3-25. Sequential Access Device LOG SENSE Header — Field Descriptions. . . . . . . . . . . 3-47

Table 3-26. Sequential Access Device LOG SENSE Page Parameters — Field Descriptions . . . 3-48

Table 3-27. Temperature LOG SENSE Header — Field Descriptions . . . . . . . . . . . . . . . . . . . . . 3-49

Table 3-28. Temperature LOG SENSE Parameters — Field Descriptions . . . . . . . . . . . . . . . . . . 3-50

Table 3-29. TapeAlert Page LOG SENSE Header — Field Descriptions . . . . . . . . . . . . . . . . . . . 3-51

Table 3-30. TapeAlert Page LOG SENSE Parameters — Field Descriptions . . . . . . . . . . . . . . . . 3-52

Table 3-31. TapeAlert Flags, Severity Levels, and Meanings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53

Table 3-32. Read / Write Compression Ratio LOG SENSE Header — Field Descriptions. . . . . . 3-55

Table 3-33. Log Parameters for Read / Write Compression Ratio LOG SENSE Page —

Field Descriptions (Parameter Codes 00h and 01h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56

Table 3-34. Log Parameters for Read / Write Compression Ratio LOG SENSE Page —

Field Descriptions (Parameter Codes 02h through 09h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57

Table 3-35. Device Wellness LOG SENSE Header — Field Descriptions . . . . . . . . . . . . . . . . . . 3-59

Table 3-36. Log Parameters for Device Wellness LOG SENSE Page — Field Descriptions . . . . 3-61

Table 3-37. Device Status LOG SENSE Header — Field Descriptions. . . . . . . . . . . . . . . . . . . . . 3-62

Table 3-38. Log Parameters for Device Status LOG SENSE Page — Field Descriptions . . . . . . 3-63

Table 3-39. Log Parameters for Device Status LOG SENSE Parameter 0001h

(Cleaning-Related) — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-64

Table 3-40. MODE SELECT (6)/(10) Command Descriptor Block — Field Descriptions. . . . . . 3-67

Table 3-41. MODE SELECT Mode Parameter List — Field Descriptions . . . . . . . . . . . . . . . . . . 3-68

Table 3-42. MODE SELECT Mode Parameter Header — Field Descriptions . . . . . . . . . . . . . . . 3-70

Table 3-43. MODE SELECT Mode Parameter Block Descriptor — Field Descriptions . . . . . . . 3-72

Table 3-44. MODE SELECT Page Descriptor — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-73

Table 3-45. Read / Write Error Recovery MODE SELECT Page — Field Descriptions . . . . . . . 3-75

Table 3-46. Disconnect / Reconnect MODE SELECT Page — Field Descriptions . . . . . . . . . . . 3-77

Table 3-47. Control Mode MODE SELECT Page — Field Descriptions . . . . . . . . . . . . . . . . . . . 3-78

Table 3-48. Data Compression MODE SELECT Page — Field Descriptions. . . . . . . . . . . . . . . . 3-81

Table 3-49. Device Configuration MODE SELECT Page — Field Descriptions . . . . . . . . . . . . . 3-83

Table 3-50. Medium Partition MODE SELECT Page — Field Descriptions . . . . . . . . . . . . . . . . 3-85

Table 3-51. Fibre Channel Logical Unit Control MODE SELECT Page —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-87

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Table 3-52. Fibre Channel Port Control MODE SELECT Page — Field Descriptions. . . . . . . . . 3-88

Table 3-53. TapeAlert MODE SELECT Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-90

Table 3-54. Vendor Specific Configuration MODE SELECT Page — Field Descriptions . . . . . . 3-94

Table 3-55. Disaster Recovery Control MODE SELECT Page — Field Descriptions . . . . . . . . . 3-95

Table 3-56. EEPROM Vendor Specific MODE SELECT Page — Parameter Descriptions . . . . . 3-96

Table 3-57. Changeable Mode Parameters Within MODE SELECT. . . . . . . . . . . . . . . . . . . . . . 3-103

Table 3-58. MODE SENSE Command Descriptor Block — Field Descriptions . . . . . . . . . . . . 3-106

Table 3-59. MODE SENSE Data Header — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 3-108

Table 3-60. MODE SENSE Block Descriptor — Field Descriptions . . . . . . . . . . . . . . . . . . . . . 3-110

Table 3-61. MODE SENSE Page — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111

Table 3-62. Supported MODE SENSE Block Pages and Page Codes . . . . . . . . . . . . . . . . . . . . . 3-111

Table 3-63. Read / Write Error Recovery MODE SENSE Page — Field Descriptions. . . . . . . . 3-113

Table 3-64. Disconnect / Reconnect MODE SENSE Page — Field Descriptions. . . . . . . . . . . . 3-115

Table 3-65. Control Mode MODE SENSE Page — Field Descriptions . . . . . . . . . . . . . . . . . . . 3-116

Table 3-66. Data Compression MODE SENSE Page — Field Descriptions . . . . . . . . . . . . . . . . 3-118

Table 3-67. Device Configuration MODE SENSE Page — Field Descriptions . . . . . . . . . . . . . 3-121

Table 3-68. Medium Partition MODE SENSE Page — Field Descriptions . . . . . . . . . . . . . . . . 3-123

Table 3-69. Fibre Channel Logical Unit Control MODE SENSE Page —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-125

Table 3-70. Fibre Channel Port Control MODE SENSE Page — Field Descriptions . . . . . . . . . 3-126

Table 3-71. TapeAlert MODE SENSE Page — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . 3-127

Table 3-72. Vendor Specific Configuration Control MODE SENSE Page — Field Descriptions3-129

Table 3-73. Disaster Recovery Control MODE SENSE Page — Field Descriptions . . . . . . . . . 3-131

Table 3-74. EEPROM Vendor Specific MODE SENSE Page — Field Descriptions . . . . . . . . . 3-132

Table 3-75. PERSISTENT RESERVE IN Command — Field Descriptions. . . . . . . . . . . . . . . . 3-134

Table 3-76. Read Keys Parameters — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-136

Table 3-77. Read Reservations Parameters — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 3-137

Table 3-78. PERSISTENT RESERVE IN Read Reservations Descriptor — Field Descriptions 3-138

Table 3-79. PERSISTENT RESERVATION IN Type Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-138

Table 3-80. PERSISTENT RESERVE OUT Command — Field Descriptions . . . . . . . . . . . . . . 3-141

Table 3-81. PERSISTENT RESERVE OUT Command’s Service Action Descriptions . . . . . . . 3-142

Table 3-82. PERSISTENT RESERVE OUT Type Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-146

Table 3-83. PERSISTENT RESERVE OUT Parameter List — Field Descriptions . . . . . . . . . . 3-148

Table 3-84. SDLT Tape Drive Interpretation of Service and Scope Value. . . . . . . . . . . . . . . . . . 3-149

Table 3-85. PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-150

Table 3-86. READ Command Descriptor Block — Field Descriptions. . . . . . . . . . . . . . . . . . . . 3-151

Table 3-87. READ ATTRIBUTE Parameter Data — Field Descriptions . . . . . . . . . . . . . . . . . . 3-154

Table 3-88. READ ATTRIBUTE Command Service Action Codes . . . . . . . . . . . . . . . . . . . . . . 3-156

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List of Tables SDLT 600 Fibre Channel Interface Guide

Table 3-89. READ ATTRIBUTE with ATTRIBUTE VALUES Service Action Parameter

Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-157

Table 3-90. READ ATTRIBUTE with ATTRIBUTE LIST Service Action Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-158

Table 3-91. READ ATTRIBUTE with VOLUME LIST Service Action Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-159

Table 3-92. READ ATTRIBUTE with PARTITION LIST Service Action Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-160

Table 3-93. EMAM Attribute Parameter Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . 3-162

Table 3-94. EMAM Attribute Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-162

Table 3-95. EMAM Attribute Identifier Range Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163

Table 3-96. Device Type Attributes (for EMAM) Supported by the SDLT Tape

Drive Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163

Table 3-97. DEVICE VENDOR/SERIAL NUMBER Attribute Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-166

Table 3-98. MEDIUM USAGE HISTORY Attribute Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-168

Table 3-99. PARTITION USAGE HISTORY Attribute Parameter Data —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-171

Table 3-100. Medium Type Attributes (for EMAM) Supported by the SDLT Tape

Drive Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-173

Table 3-101. MEDIUM TYPE and MEDIUM TYPE INFORMATION Attributes . . . . . . . . . . 3-175

Table 3-102. Host Type Attributes (for MAM) Supported by the SDLT Tape

Drive Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-175

Table 3-103. TEXT LOCALIZATION IDENTIFIER — Attribute Values . . . . . . . . . . . . . . . . . 3-176

Table 3-104. READ BLOCK LIMITS Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . 3-180

Table 3-105. READ BUFFER Command Descriptor Block — Field Descriptions . . . . . . . . . . 3-182

Table 3-106. READ BUFFER Header — Field Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-184

Table 3-107. ECHO BUFFER Descriptor — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . 3-186

Table 3-108. READ POSITION Command Descriptor Block — Field Descriptions . . . . . . . . . 3-187

Table 3-109. READ POSITION (Short Form) Data — Field Descriptions. . . . . . . . . . . . . . . . . 3-188

Table 3-110. READ POSITION (Long Form) Data — Field Descriptions . . . . . . . . . . . . . . . . . 3-190

Table 3-111. RECEIVE DIAGNOSTIC RESULTS Command Data — Field Descriptions . . . . 3-192

Table 3-112. REPORT DENSITY SUPPORT Command — Field Descriptions. . . . . . . . . . . . . 3-194

Table 3-113. REPORT DENSITY SUPPORT Header — Field Descriptions . . . . . . . . . . . . . . . 3-195

Table 3-114. REPORT DENSITY SUPPORT Data Block Descriptor —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-197

Table 3-115. REPORT DEVICE IDENTIFIER Command Descriptor Block —

Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-199

Table 3-116. REPORT DEVICE IDENTIFIER Parameter Data — Field Descriptions . . . . . . . 3-200

Table 3-117. REPORT LUNS Command Descriptor Block — Field Descriptions . . . . . . . . . . . 3-201

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SDLT 600 Fibre Channel Interface Guide List of Tables

Table 3-118. REPORT SUPPORTED OPERATION CODES Command Descriptor

Block — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-204

Table 3-119. All_commands Parameter Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-205

Table 3-120. All_commands Command Descriptor — Field Descriptions . . . . . . . . . . . . . . . . . 3-206

Table 3-121. One_command Parameter Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 3-208

Table 3-122. REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS Command

Descriptor Block — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-210

Table 3-123. TASK MANAGEMENT FUNCTIONS Command Parameter Data — Field

Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-210

Table 3-124. REQUEST SENSE Command Data — Field Descriptions . . . . . . . . . . . . . . . . . . 3-211

Table 3-125. REQUEST SENSE Data — Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-213

Table 3-126. Supported Sense Keys for REQUEST SENSE Command . . . . . . . . . . . . . . . . . . . 3-215

Table 3-127. Supported ASC / ASCQ (Hex) for REQUEST SENSE Command . . . . . . . . . . . . 3-216

Table 3-128. REWIND Command Data — Field Description. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-223

Table 3-129. SEND DIAGNOSTIC Command Data — Field Descriptions . . . . . . . . . . . . . . . . 3-224

Table 3-130. SEND DIAGNOSTIC CDB Fields — DHC, Selftst, DevOfl, and UnitOfl. . . . . . 3-226

Table 3-131. Sense Keys for SEND DIAGNOSTIC Command . . . . . . . . . . . . . . . . . . . . . . . . . 3-226

Table 3-132. ASC / ASCQ for SEND DIAGNOSTIC Command . . . . . . . . . . . . . . . . . . . . . . . . 3-227

Table 3-133. SET DEVICE IDENTIFIER Command Descriptor Block — Field

Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-229

Table 3-134. SET DEVICE IDENTIFIER Parameter List — Field Description. . . . . . . . . . . . . 3-229

Table 3-135. SPACE Command Data — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-230

Table 3-136. VERIFY Command Data — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-233

Table 3-137. WRITE Command Data — Field Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-235

Table 3-138. WRITE ATTRIBUTE Command Parameter Data — Field Descriptions. . . . . . . . 3-237

Table 3-139. WRITE ATTRIBUTE Command Parameter Data — Field Descriptions. . . . . . . . 3-238

Table 3-140. WRITE BUFFER Command Descriptor Block — Field Descriptions. . . . . . . . . . 3-241

Table 3-141. WRITE FILEMARKS Command — Field Descriptions . . . . . . . . . . . . . . . . . . . . 3-243

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List of Tables SDLT 600 Fibre Channel Interface Guide

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81-81202-01 REV A02

List of Figures

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2 Fibre Channel Protocol and SCSI . . . . . . . . . . . . . . . . . . . . . . . 2-1

3 SCSI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Figure 3-1. ERASE Command Descriptor Block — Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-2. INQUIRY Command Descriptor Block — Data Format. . . . . . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-3. Standard Inquiry Data Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 3-4. Vendor Specific Inquiry Data Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Figure 3-5. Supported Vital Product Data Pages — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Figure 3-6. Unit Serial Number Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Figure 3-7. Device Identification Page — Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Figure 3-8. Vendor-unique Logical Unit Identifier— Data Format . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Figure 3-9. Logical Unit NAA Identifier — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Figure 3-10. Port NAA Identifier — Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Figure 3-11. Firmware Build Information Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Figure 3-12. Subsystem Components Revision Page — Data Format. . . . . . . . . . . . . . . . . . . . . . 3-24

Figure 3-13. LOAD UNLOAD Command Descriptor Block — Data Format . . . . . . . . . . . . . . . 3-26

Figure 3-14. LOCATE Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-15. LOG SELECT Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . 3-29

Figure 3-16. LOG SELECT Log Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Figure 3-17. LOG SELECT Log Page — Parameters Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Figure 3-18. LOG SENSE Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . 3-37

Figure 3-19. Supported Pages LOG SENSE Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Figure 3-20. Read / Write Error LOG SENSE Page — Header Format . . . . . . . . . . . . . . . . . . . . 3-41

Figure 3-21. Log Parameters Format for Read / Write Error LOG SENSE Page . . . . . . . . . . . . . 3-42

Figure 3-22. Last n Error Events LOG SENSE Page — Header Format. . . . . . . . . . . . . . . . . . . . 3-45

Figure 3-23. Log Parameters Format for Last n Error Events LOG SENSE Page. . . . . . . . . . . . . 3-46

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List of Figures SDLT 600 Fibre Channel Interface Guide

Figure 3-24. Sequential Access Device LOG SENSE Page — Header Format. . . . . . . . . . . . . . . 3-47

Figure 3-25. Log Parameters Format for Sequential Access Device LOG SENSE Page . . . . . . . 3-47

Figure 3-26. Temperature LOG SENSE Page — Header Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-49

Figure 3-27. Log Parameters Format for Temperature Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49

Figure 3-28. TapeAlert LOG SENSE Page — Header Format . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Figure 3-29. TapeAlert LOG SENSE Page — Parameters Format . . . . . . . . . . . . . . . . . . . . . . . . 3-52

Figure 3-30. Read / Write Compression Ratio LOG SENSE Page — Header Format . . . . . . . . . 3-55

Figure 3-31. Log Parameters Format for Read / Write Compression Ratio LOG SENSE Page

(Parameter Codes 00h and 01h). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55

Figure 3-32. Log Parameters Format for Read / Write Compression Ratio LOG SENSE Page

(Parameter Codes 02h through 09h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56

Figure 3-33. Device Wellness LOG SENSE Page — Header Format . . . . . . . . . . . . . . . . . . . . . . 3-59

Figure 3-34. Log Parameters Format for Device Wellness LOG SENSE Page

(Parameter Codes 0000h – 000Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-60

Figure 3-35. Device Status LOG SENSE Page — Header Format . . . . . . . . . . . . . . . . . . . . . . . . 3-62

Figure 3-36. Log Parameters Format for Device Status LOG SENSE Page . . . . . . . . . . . . . . . . . 3-62

Figure 3-37. Cleaning-Related Log Parameters Format for Device Status LOG SENSE Page. . . 3-64

Figure 3-38. MODE SELECT (6) Command Descriptor Block — Data Format . . . . . . . . . . . . . 3-66

Figure 3-39. MODE SELECT (10) Command Descriptor Block — Data Format . . . . . . . . . . . . 3-66

Figure 3-40. MODE SELECT (6) Mode Parameter List — Data Format . . . . . . . . . . . . . . . . . . . 3-67

Figure 3-41. MODE SELECT (10) Mode Parameter List — Data Format . . . . . . . . . . . . . . . . . . 3-68

Figure 3-42. MODE SELECT (6) Mode Parameter Header — Data Format . . . . . . . . . . . . . . . . 3-69

Figure 3-43. MODE SELECT (10) Mode Parameter Header — Data Format . . . . . . . . . . . . . . . 3-69

Figure 3-44. MODE SELECT Mode Parameter Block Descriptor — Data Format . . . . . . . . . . . 3-71

Figure 3-45. MODE SELECT Page Descriptor — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73

Figure 3-46. Read / Write Error Recovery MODE SELECT Page — Data Format . . . . . . . . . . . 3-74

Figure 3-47. Disconnect / Reconnect MODE SELECT Page — Data Format . . . . . . . . . . . . . . . 3-76

Figure 3-48. Control Mode MODE SELECT Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . 3-78

Figure 3-49. Data Compression MODE SELECT Page — Data Format . . . . . . . . . . . . . . . . . . . 3-80

Figure 3-50. Device Configuration MODE SELECT Page — Data Format . . . . . . . . . . . . . . . . . 3-82

Figure 3-51. Medium Partition MODE SELECT Page — Data Format . . . . . . . . . . . . . . . . . . . . 3-85

Figure 3-52. Fibre Channel Logical Unit Control MODE SELECT Page — Data Format. . . . . . 3-87

Figure 3-53. Fibre Channel Port Control MODE SELECT Page — Data Format . . . . . . . . . . . . 3-88

Figure 3-54. TapeAlert MODE SELECT Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-90

Figure 3-55. Vendor Specific Configuration MODE SELECT Page — Data Format. . . . . . . . . . 3-93

Figure 3-56. Disaster Recovery Control MODE SELECT Page — Data Format . . . . . . . . . . . . . 3-95

Figure 3-57. EEPROM Vendor Specific MODE SELECT Page — Data Format . . . . . . . . . . . . . 3-96

Figure 3-58. EEPROM Vendor Specific Page “Vendor ID” Example — Data Format . . . . . . . . 3-102

Figure 3-59. MODE SENSE (6) Command Descriptor Block — Data Format. . . . . . . . . . . . . . 3-105

Figure 3-60. MODE SENSE (10) Command Descriptor Block — Data Format. . . . . . . . . . . . . 3-106

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SDLT 600 Fibre Channel Interface Guide List of Figures

Figure 3-61. MODE SENSE (6) Data Header — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-107

Figure 3-62. MODE SENSE (10) Data Header — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-108

Figure 3-63. MODE SENSE Block Descriptor — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-109

Figure 3-64. MODE SENSE Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111

Figure 3-65. Read / Write Error Recovery MODE SENSE Page — Data Format . . . . . . . . . . . 3-112

Figure 3-66. Disconnect / Reconnect MODE SENSE Page — Data Format. . . . . . . . . . . . . . . . 3-114

Figure 3-67. Control Mode MODE SENSE Page — Data Format . . . . . . . . . . . . . . . . . . . . . . . 3-116

Figure 3-68. Data Compression MODE SENSE Page — Data Format. . . . . . . . . . . . . . . . . . . . 3-118

Figure 3-69. Device Configuration MODE SENSE Page — Data Format . . . . . . . . . . . . . . . . . 3-120

Figure 3-70. Medium Partition MODE SENSE Page — Data Format . . . . . . . . . . . . . . . . . . . . 3-123

Figure 3-71. Fibre Channel Logical Unit Control MODE SENSE Page — Data Format . . . . . . 3-124

Figure 3-72. Fibre Channel Port Control MODE SENSE Page — Data Format. . . . . . . . . . . . . 3-125

Figure 3-73. TapeAlert MODE SENSE Page — Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-127

Figure 3-74. Vendor Specific Configuration Control MODE SENSE Page — Data Format . . . 3-129

Figure 3-75. Disaster Recovery Control MODE SENSE Page — Data Format . . . . . . . . . . . . . 3-131

Figure 3-76. EEPROM Vendor Specific MODE SENSE Page — Data Format . . . . . . . . . . . . . 3-132

Figure 3-77. PERSISTENT RESERVE IN Command Descriptor Block — Data Format . . . . . 3-133

Figure 3-78. PERSISTENT RESERVE IN Read Keys Parameters — Data Format . . . . . . . . . . 3-135

Figure 3-79. PERSISTENT RESERVE IN Read Reservations Parameters — Data Format. . . . 3-136

Figure 3-80. PERSISTENT RESERVE IN Read Reservations Descriptor — Data Format . . . . 3-138

Figure 3-81. PERSISTENT RESERVE OUT Command Descriptor Block — Data Format . . . 3-140

Figure 3-82. PERSISTENT RESERVE OUT Parameter List — Data Format . . . . . . . . . . . . . . 3-147

Figure 3-83. PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block —

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-150

Figure 3-84. READ Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . . . . . 3-151

Figure 3-85. READ ATTRIBUTE Command Descriptor Block — Data Format . . . . . . . . . . . . 3-154

Figure 3-86. READ ATTRIBUTE with ATTRIBUTE VALUES Service Action — Parameter

List Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-157

Figure 3-87. READ ATTRIBUTE with ATTRIBUTE LIST Service Action — Parameter

List Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-158

Figure 3-88. READ ATTRIBUTE with VOLUME LIST Service Action — Parameter

List Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-159

Figure 3-89. READ ATTRIBUTE with PARTITION LIST Service Action — Parameter

List Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-160

Figure 3-90. EMAM Attribute — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-161

Figure 3-91. DEVICE VENDOR/SERIAL NUMBER Attribute — Data Format . . . . . . . . . . . 3-165

Figure 3-92. MEDIUM USAGE HISTORY Attribute — Data Format . . . . . . . . . . . . . . . . . . . . 3-168

Figure 3-93. PARTITION USAGE HISTORY Attribute — Data Format . . . . . . . . . . . . . . . . . . 3-171

Figure 3-94. READ BLOCK LIMITS Command Descriptor Block — Data Format . . . . . . . . . 3-179

Figure 3-95. READ BLOCK LIMITS Data — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-179

Figure 3-96. READ BUFFER Command Descriptor Block — Data Format . . . . . . . . . . . . . . . 3-181

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List of Figures SDLT 600 Fibre Channel Interface Guide

Figure 3-97. READ BUFFER Header — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-184

Figure 3-98. READ BUFFER Descriptor — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-185

Figure 3-99. ECHO BUFFER Descriptor — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-186

Figure 3-100. READ POSITION Command Descriptor Block — Data Format . . . . . . . . . . . . . 3-187

Figure 3-101. READ POSITION (Short Form) — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-188

Figure 3-102. READ POSITION (Long Form) — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-190

Figure 3-103. RECEIVE DIAGNOSTIC RESULTS Command Descriptor Block —

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-192

Figure 3-104. RECEIVE DIAGNOSTIC RESULTS — Data Format . . . . . . . . . . . . . . . . . . . . . 3-193

Figure 3-105. REPORT DENSITY SUPPORT Command Descriptor Block — Data Format . . 3-194

Figure 3-106. REPORT DENSITY SUPPORT Header — Data Format . . . . . . . . . . . . . . . . . . . 3-195

Figure 3-107. REPORT DENSITY SUPPORT Data Block Descriptor — Data Format. . . . . . . 3-196

Figure 3-108. REPORT DEVICE IDENTIFIER Command Descriptor Block — Data Format . 3-199

Figure 3-109. REPORT DEVICE IDENTIFIER — Data Format . . . . . . . . . . . . . . . . . . . . . . . . 3-200

Figure 3-110. REPORT LUNS Command Descriptor Block — Data Format. . . . . . . . . . . . . . . 3-201

Figure 3-111. LUN Reporting Parameter List — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-202

Figure 3-112. REPORT SUPPORTED OPERATION CODES Command Descriptor Block —

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-203

Figure 3-113. All_commands Parameter Data — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-205

Figure 3-114. All_commands Command Descriptor — Data Format . . . . . . . . . . . . . . . . . . . . . 3-206

Figure 3-115. One_command Parameter Data — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . 3-207

Figure 3-116. REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS Command

Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-209

Figure 3-117. TASK MANAGEMENT FUNCTIONS Command Parameter Data —

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-210

Figure 3-118. REQUEST SENSE Command Descriptor Block — Data Format . . . . . . . . . . . . 3-211

Figure 3-119. REQUEST SENSE — Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-212

Figure 3-120. REWIND Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . . 3-223

Figure 3-121. SEND DIAGNOSTIC Command Descriptor Block — Data Format . . . . . . . . . . 3-224

Figure 3-122. SET DEVICE IDENTIFIER Command Descriptor Block — Data Format . . . . . 3-228

Figure 3-123. SET DEVICE IDENTIFIER Parameter List — Data Format. . . . . . . . . . . . . . . . 3-229

Figure 3-124. SPACE Command Descriptor Block — Data Format . . . . . . . . . . . . . . . . . . . . . . 3-230

Figure 3-125. TEST UNIT READY Command Descriptor Block — Data Format . . . . . . . . . . 3-232

Figure 3-126. VERIFY Command Descriptor Block — Data Format. . . . . . . . . . . . . . . . . . . . . 3-233

Figure 3-127. WRITE Command Descriptor Block — Data Format. . . . . . . . . . . . . . . . . . . . . . 3-234

Figure 3-128. WRITE ATTRIBUTE Command Descriptor Block — Data Format . . . . . . . . . . 3-236

Figure 3-129. WRITE ATTRIBUTE — Parameter List Format . . . . . . . . . . . . . . . . . . . . . . . . . 3-237

Figure 3-130. WRITE BUFFER Command Descriptor Block — Data Format . . . . . . . . . . . . . 3-240

Figure 3-131. WRITE FILEMARKS Command Descriptor Block — Data Format. . . . . . . . . . 3-243

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1.1 Purpose and Scope

REV

CHAPTER 1

Introduction

This reference guide is a comprehensive source of information about the Fibre Channel Protocol (FCP) for SCSI used by the Super DLTtape™-generation (SDLT) tape drives. Implementation of the FCP standard enables the transmission of standard SCSI command formats, data, and parameters, and the receipt of SCSI status and sense information across a Fibre Channel network using the standard Fibre Channel frame and sequence formats. The SDLT tape drive implementation of FCP operates with Fibre Channel Class of Service 3 and operates across Fibre Channel fabrics and arbitrated loops.

This document is written for original equipment manufacturers (OEMs) that are integrating the Quantum SDLT tape drive into a system or subsystem. Background knowledge of the SCSI-3, FCP, SAM, SSC, SPC, and SPI standards is assumed.

This document’s primary audience is the OEM technical system integrators who are responsible for the FCP interface. In addition, technically astute end-users can use this manual for installation and operation of the tape drive, although that group is a secondary audience.

1.2 Referenced Documents

• SDLT Interactive Library Interface Specification (6464162-01)

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Related Documents SDLT 600 Fibre Channel Interface Guide

1.3 Related Documents

• SDLT 600 SCSI Interface Guide (81-81200-01)

• SDLT 600 Product Manual (81-81184-01)

• Current standards documents available from www.t10.org:

 Fibre Channel Protocol for SCSI (FCP)

 SCSI Architecture Model (SAM)

 SCSI Primary Commands (SPC)

 SCSI Parallel Interface (SPI)

 SCSI Stream Commands (SSC)

1.4 Structure of this Manual

• Chapter 1, Introduction, is the chapter you are currently reading.

• Chapter 2, Fibre Channel Protocol and SCSI, provides an overview of SDLT tape drive-

specific information about transmitting SCSI commands using the Fibre Channel Protocol (FCP). Background knowledge of the SCSI-3, FCP, SAM, SSC, SPC, and SPI standards is assumed.

• Chapter 3, SCSI Commands, describes in detail each command supported by SDLT tape drives

using FCP. The SCSI command system enables a Fibre Channel port acting as a SCSI initiator to direct an SDLT tape drive located on another Fibre Channel port to perform a wide range of operational and diagnostic functions. This chapter also provides Sense Key and Additional Sense Code information for the REQUEST SENSE and SEND DIAGNOSTIC SCSI commands as well as density codes for the MODE SELECT and MODE SENSE commands.

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SDLT 600 Fibre Channel Interface Guide Chapter 1: SCSI Commands

1.5 Conventions

This manual uses the following conventions to designate specific elements:

Table 1-1. Typographical Conventions

Element Convention Example

Commands Uppercase (unless case-

sensitive)

Hexadecimal Notation Number followed by

lowercase h

Binary Notation Number followed by

lowercase b

Decimal Notation Number without suffix 512

Acronyms Uppercase POST

Abbreviations Lowercase, except where

standard usage requires uppercase

1.6 For More Information

The web site http://www.dlttape.com includes information about the various DLTtape systems available for purchase. To locate specific product-related support information or to register your tape drive, visit http://www.quantum.com/AM/support/. Once you are registered, you can download a variety of useful drivers, software programs, and diagnostic utilities.

TEST UNIT READY

25h

101b

Mb (megabits) MB (megabytes)

For personalized information about Quantum’s reliable data protection products, call 1-800-624-5545 in the U.S.A. and Canada.

81-81202-01 REV A02 July 2004 1-3

Reader Comments SDLT 600 Fibre Channel Interface Guide

1.7 Reader Comments

Quantum is committed to providing the best products and service. We encourage your comments, suggestions, and corrections for this manual. Please send all comments on existing documentation to:

Quantum Technical Publications 4001 Discovery Dr. Suite 1100 Boulder, Colorado USA 80303

or if you prefer, e-mail your comments to:

doc-comments@quantum.com

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SDLT 600 Fibre Channel Interface Guide SCSI Commands

This chapter presents the background information required to use this manual successfully. Specifically, it covers the following topics:

• “Background Information About Fibre Channel” introduces the Fibre Channel architecture.

• “Implementation Details for SDLT 600 Tape Drives” lists the Fibre Channel features that SDLT

600 tape drives implement.

81-81202-01 REV A02

CHAPTER 2

Fibre Channel Protocol and SCSI

2.1 Background Information About Fibre Channel

Fibre Channel is a high-speed serial architecture that allows either optical or electrical connections at data rates of 1 Gb/second or 2 Gb/second. Fibre Channel supports point-to-point, fabric, and arbitrated loop topologies. Implementation of the Fibre Channel Protocol (FCP) standard enables the transmission of SCSI commands, data, and parameters, and the receipt of SCSI status and sense information across the Fibre Channel connection.

2.1.1 Fibre Channel Interface Type

The SDLT 600 Fibre Channel tape drive supports the following features:

• Automatic speed negotiation, with transfer rates of:

 100 megabytes per second (1 Gb/second)

 200 megabytes per second (2 Gb/second)

• Automatic topology negotiation (the tape drive operates as an NL_Port or N_Port):

 Arbitrated Loop: private loop, NL_Port to NL_Port(s)

 Arbitrated Loop: public loop, NL_Port to NL_Port(s) and one FL_Port

 Fabric attachment: N_Port to F_Port

 Point-to-Point attachment: N_Port to N_Port

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Background Information About Fibre Channel SDLT 600 Fibre Channel Interface Guide

• FCP (SCSI-3 command set) for tape devices

• Class 3 level of service

• Basic and extended link services

• Task retry identification

• Hard assigned port addresses, when attached to a library. The library can assign a hard address to

the tape drive. If the library does not assign a hard address, the tape drive takes a soft address initially.

2.1.2 Relationship Between Fibre Channel and SCSI

Small Computer System Interface (SCSI) is one of the industry’s most widely adopted I/O interfaces; it is widely used in computing platforms from personal computers to mainframes to peripheral devices of all types. Transmitting SCSI command-set information across a Fibre Channel connection makes the large body of SCSI application and tape driver software available for use in the high-performance Fibre Channel environment.

NOTE: Complete FCP and SCSI standards documents are available at

www.t10.org.

SDLT 600 tape drives conform to the SCSI-3 standard, with commands transported using the FCP-2 standard. This manual assumes you are familiar with the FCP, SAM, SPC, FC-FS, and SSC standards.

2.1.3 World-wide Names

Each SDLT 600 tape drive contains two unique, 64-bit world-wide names for Fabric Login: a node name for the drive and one for the drive’s Fibre Channel port. The drive reports the world-wide names to the host through the INQUIRY Command (12h). See “Device Identification Page (83h)” on

page 3-18 for more information.

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2.2 Implementation Details for SDLT 600 Tape Drives

This section introduces the Fibre Channel features SDLT 600 tape drives implement including task management functions, persistent reservations, Basic and Extended Link Service, and unsolicited control support.

2.2.1 Task Management

SDLT 600 tape drives support the following task management functions:

Table 2-1. Supported Task Management Functions

Task Management

Bit

Flag SDLT 600 Tape Drive Action

7 Obsolete None FCP Command Fields

6 Clear ACA None Task Management Function

5 Target Reset The initiator sends this task management

function to reset all logical units. When the drive receives it, the drive clears all I/O processes. The Target Reset task management flag causes the drive to:

Response Code Setting in FCP Response Payload

Invalid

Not Supported

Task Management Function Complete

• Flush the contents of cache to tape

• Execute a soft reset.

The drive creates a Unit Attention condition for all initiators after accepting and processing the Target Reset. The Additional Sense Code is set to DEVICE RESET FUNCTION OCCURRED.

If a WRITE command is in progress and STATUS has not been sent to the initiator when the drive receives this task management function, some or all of the data for this command may be written to the medium.

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Table 2-1. Supported Task Management Functions (Continued)

Task Management

Bit

Flag

SDLT 600 Tape Drive Action

4 Reset LUN This task management function causes the

drive to reset the selected unit.

Response Code Setting in FCP Response Payload

Task Management Function Complete

When the LUN is set to 0 and the drive receives the Reset LUN task management function, the drive is reset as described in Target Reset above.

3 Reserved None FCP Command Fields

Invalid

2 Clear Task Set None Task Management Function

Not Supported

1 Abort Task Set This task management function causes the

drive to clear the current I/O process on the

Task Management Function

Complete selected unit. Buffered (cached) write operations are completed if possible. The current settings of MODE SELECT parameters and reservations are not affected. Commands, data, and status for other initiators are not affected.

This task management function can be sent to a logical unit that is not currently performing an operation for the initiator.

0 Reserved None FCP Command Fields

Invalid

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2.2.2 Persistent Reservations

SDLT 600 tape drives support the PERSISTENT RESERVE OUT and PERSISTENT RESERVE IN commands. The PERSISTENT RESERVE OUT command allows a node connected to the SDLT 600 tape drive port to reserve the drive for data transfers. The node that issued the PERSISTENT RESERVE OUT command must issue another PERSISTENT RESERVE OUT command to release the drive before a different node can initiate a data transfer to the drive. Reservations in effect are not released by reset or power-down conditions. The PERSISTENT RESERVE IN command obtains information about persistent reservations and registrations active on an SDLT 600 tape drive. See

“PERSISTENT RESERVE OUT Command (5Fh)” on page 3-140 and “PERSISTENT RESERVE IN Command (5Eh)” on page 3-133 for more information.

2.2.3 Link Service and Unsolicited Control Support

SDLT 600 tape drives provide Link Service and Unsolicited Control support as described in this section.

Basic Link Service

The following table lists the Basic Link Service requests the drive supports. Refer to the FC-FS specification for details.

Table 2-2. Supported Basic Link Service Commands

R_CTL Abbreviation Description

80h NOP No Operation

81h ABTS Abort Sequence

84h BA_ACC Basic Accept

85h BA_RJT Basic Reject

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Extended Link Service Commands

The following table lists the Extended Link Service (ELS) commands the drive supports. Refer to the FC-FS specification for details.

Table 2-3. Supported Extended Link Service Commands

ELS Command Abbreviation Description

01h LS_RJT Link Service Reject

02h LS_ACC Link Service Accept

03h PLOGI N_Port Login

04h FLOGI F_Port Login

05h LOGO Logout

06h ABTX Abort Exchange

0Eh RTV Read Timeout Value

11h TEST Test (Loop Initialization)

12h RRQ Reinstate Recovery Qualifier

13h REC Read Exchange Concise

20h PRLI Process Login

21h PRLO Process Logout

50h PDISC Discover N_Port Service Parameters

52h ADISC Discover Address

56h RPS Read Port Status Block

57h RPL Read Port List

60h FAN Fabric Address Notification

78h RNID Request Node Identification Data

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