Feb 17, 2021 T10/BSR INCITS 546 Revision 07
Working Draft SCSI Architecture Model - 6 (SAM-6) v
Contents
Page
1 Scope ............................................................................................................................................................. 1
2 Normative references..................................................................................................................................... 1
3 Definitions, symbols, abbreviations, and conventions.................................................................................... 1
3.1 Definitions................................................................................................................................................. 1
3.2 Abbreviations, Symbols, and Acronyms ................................................................................................. 13
3.2.1 Abbreviations .................................................................................................................................... 13
3.2.2 Units.................................................................................................................................................. 14
3.2.3 Mathematical operators .................................................................................................................... 14
3.3 Keywords................................................................................................................................................ 14
3.4 Editorial conventions .............................................................................................................................. 15
3.5 Numeric and character conventions ....................................................................................................... 16
3.5.1 Numeric conventions ........................................................................................................................ 16
3.5.2 Byte encoded character strings conventions .................................................................................... 17
3.6 UML notation conventions ...................................................................................................................... 17
3.6.1 Notation conventions overview ......................................................................................................... 17
3.6.2 Constraint and note conventions ...................................................................................................... 17
3.6.3 Class diagram conventions............................................................................................................... 19
3.6.4 Object diagram conventions ............................................................................................................. 23
3.7 State machine conventions .................................................................................................................... 25
3.7.1 State machine conventions overview................................................................................................ 25
3.7.2 Transitions ........................................................................................................................................ 26
3.7.3 Messages, requests, indications, confirmations, responses, and event notifications ....................... 27
3.7.4 State machine counters, timers, and variables ................................................................................. 27
3.8 Bit and byte ordering .............................................................................................................................. 27
3.9 Notation for procedure calls.................................................................................................................... 29
4 SCSI architecture model .............................................................................................................................. 31
4.1 Introduction............................................................................................................................................. 31
4.2 Compliance requirements....................................................................................................................... 31
4.3 The SCSI distributed service model ....................................................................................................... 33
4.4 The SCSI client-server model................................................................................................................. 34
4.4.1 SCSI client-server model overview ................................................................................................... 34
4.4.2 Synchronizing client and server changes ..................
....................................................................... 35
4.4.3 Server request/response ordering .................................................................................................... 35
4.5 The SCSI structural model ..................................................................................................................... 36
4.6 SCSI classes .......................................................................................................................................... 37
4.6.1 SCSI classes overview ..................................................................................................................... 37
4.6.2 SCSI Domain class ........................................................................................................................... 38
4.6.3 Service Delivery Subsystem class .................................................................................................... 39
4.6.4 SCSI Device class ............................................................................................................................ 39
4.6.4.1 SCSI Device class overview........................................................................................................ 39
4.6.4.2 SCSI Device Name attribute ....................................................................................................... 40
4.6.5 SCSI Port class................................................................................................................................. 41
4.6.5.1 SCSI Port class overview ............................................................................................................ 41
4.6.5.2 Relative Port Identifier attribute ................................................................................................... 42
4.6.6 SCSI Target Port class ..................................................................................................................... 42
4.6.6.1 SCSI Target Port class overview................................................................................................. 42
4.6.6.2 Target Port Identifier attribute...................................................................................................... 42
4.6.6.3 Target Port Name attribute.......................................................................................................... 43
4.6.6.4 Send Data-In operation ............................................................................................................... 43
4.6.6.5 Receive Data-Out operation........................................................................................................ 43
4.6.6.6 Terminate Data Transfer operation ............................................................................................. 43
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