ISO/IEC 14776-415:2019

Information technology - Small Computer System Interface (SCSI) - Part 415: SCSI Architecture Model - 5 (SAM-5)

ISO/IEC 14776-415:2019 defines a reference model that specifies common behaviors for SCSI devices, and an abstract structure that is generic to all SCSI I/O system implementations.The set of Small Computer System Interface (SCSI) specifies the interfaces, functions, and operations necessary to ensure interoperability between conforming SCSI implementations. This document is a functional description. Conforming implementations employ any design technique that does not violate interoperability.
The following concepts from previous versions of the SAM standard are made obsolete by this version:
a) support for the SPI-5 SCSI transport protocol;
b) Contingent Allegiance;
c) the TARGET RESET task management function;
d) basic task management model;
e) untagged tasks; and
f) linked command function.

General Information

• Status: Published
• Publication Date: 12-Dec-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: WG 4 - ISO/IEC JTC 1/SC 25/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 18-Dec-2019
• Completion Date: 13-Dec-2019

Standards Content (Sample)

ISO/IEC 14776-415
Edition 1.0 2019-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Small Computer System Interface (SCSI) –
Part 415: SCSI Architecture Model - 5 (SAM-5)

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ISO/IEC 14776-415
Edition 1.0 2019-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Small Computer System Interface (SCSI) –

Part 415: SCSI Architecture Model - 5 (SAM-5)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-7662-4

ISO/IEC
14776-415
Information technology -
Small Computer System Interface (SCSI) -
Part 415: SCSI Architecture Model - 5 (SAM-5)
Reference number
Printed Wednesday, October 30, 2019 4:56 pm

- 2 - ISO/IEC 14776-415:2019 © ISO/IEC 2019
1 Scope. 15
2 Normative references. 15
3 Terms, definitions, symbols, abbreviations, and conventions. 15
3.1 Terms and definitions . 15
3.2 Symbols and Abbreviations. 30
3.2.1 Abbreviations . 30
3.2.2 Units. 30
3.3 Keywords. 30
3.4 Editorial conventions . 32
3.5 Numeric and character conventions. 33
3.5.1 Numeric conventions . 33
3.5.2 Byte encoded character strings conventions . 34
3.6 UML notation conventions. 34
3.6.1 Notation conventions overview . 34
3.6.2 Constraint and note conventions . 34
3.6.3 Class diagram conventions. 35
3.6.4 Object diagram conventions . 40
3.7 State machine conventions . 42
3.7.1 State machine conventions overview. 42
3.7.2 Transitions . 43
3.7.3 Messages, requests, indications, confirmations, responses, and event notifications. 43
3.7.4 State machine counters, timers, and variables. 44
3.8 Bit and byte ordering . 44
3.9 Notation for procedure calls. 46
4 SCSI architecture model . 47
4.1 Overview. 47
4.2 Compliance requirements. 47
4.3 The SCSI distributed service model . 49
4.4 The SCSI client-server model. 50
4.4.1 SCSI client-server model overview. 50
4.4.2 Synchronizing client and server changes . 51
4.4.3 Server request/response ordering . 51
4.5 The SCSI structural model . 52
4.6 SCSI classes . 53
4.6.1 SCSI classes overview . 53
4.6.2 SCSI Domain class. 54
4.6.3 Service Delivery Subsystem class. 55
4.6.4 SCSI Device class . 55
4.6.4.1 SCSI Device class overview. 55
4.6.4.2 SCSI Device Name attribute . 56
4.6.5 SCSI Port class. 57
4.6.5.1 SCSI Port class overview. 57
4.6.5.2 Relative Port Identifier attribute. 58
4.6.6 SCSI Target Port class . 58
4.6.6.1 SCSI Target Port class overview. 58
4.6.6.2 Target Port Identifier attribute. 58
4.6.6.3 Target Port Name attribute. 59
4.6.6.4 Send Data-In operation . 59
4.6.6.5 Receive Data-Out operation. 59
4.6.6.6 Terminate Data Transfer operation . 59
4.6.6.7 Send Command Complete operation. 59
4.6.6.8 Task Management Function Executed operation. 59
4.6.7 Task Router class . 59
4.6.7.1 Task Router class overview . 59
4.6.7.2 Route Command operation . 60

4.6.7.3 Route Task Management Function operation . 60
4.6.7.4 Reroute Conglomerate Command operation . 61
4.6.7.5 Reroute Conglomerate Task Management Functions operation. 61
4.6.7.6 Stop Conglomerate Task Management Functions Rerouting operation . 62
4.6.8 SCSI Initiator Port class. 62
4.6.8.1 SCSI Initiator Port class overview . 62
4.6.8.2 Initiator Port Identifier attribute . 63
4.6.8.3 Initiator Port Name attribute . 63
4.6.8.4 Send SCSI Command operation. 63
4.6.8.5 Send Task Management Request operation. 63
4.6.8.6 Get Initiator Port Identifier operation . 63
4.6.8.7 Get Initiator Port Name operation. 63
4.6.9 SCSI Target Device class. 64
4.6.10 Logical Unit Conglomerate class . 65
4.6.11 Level 1 Hierarchical Logical Unit class . 66
4.6.12 Level 2 Hierarchical Logical Unit class . 67
4.6.13 Level 3 Hierarchical Logical Unit class . 68
4.6.14 Level 4 Hierarchical Logical Unit class . 68
4.6.15 Hierarchical Logical Unit class. 68
4.6.16 Management Logical Unit class. 68
4.6.17 Well Known Logical Unit class. 69
4.6.18 Logical Unit class. 69
4.6.18.1 Logical Unit class overview .
...