4 May 2005 T10/1416-D Revision 23
dpANS SCSI Primary Commands - 3 (SPC-3) v
Contents
Page
Foreword ............................................................................................................................................................... xxiv
Introduction ........................................................................................................................................................... xxvi
1 Scope..................................................................................................................................................................... 1
2 Normative references............................................................................................................................................. 4
2.1 Normative references ................................................................................................................................... 4
2.2 Approved references .................................................................................................................................... 5
2.3 References under development ................................................................................................................... 6
2.4 IETF References .......................................................................................................................................... 6
3 Definitions, symbols, abbreviations, and conventions ............................................................................................ 8
3.1 Definitions..................................................................................................................................................... 8
3.2 Acronyms.................................................................................................................................................... 15
3.3 Keywords.................................................................................................................................................... 17
3.4 Conventions................................................................................................................................................ 18
3.5 Bit and byte ordering .................................................................................................................................. 19
3.6 Notation conventions .................................................................................................................................. 19
3.6.1 Notation for byte encoded character strings............................................................................................ 19
3.6.2 Notation for procedure calls..................................................................................................................... 20
3.6.3 Notation for state diagrams ..................................................................................................................... 21
3.6.4 Notation for binary power multipliers ....................................................................................................... 21
4 General Concepts ................................................................................................................................................ 22
4.1 Introduction................................................................................................................................................. 22
4.2 The request-response model...................................................................................................................... 22
4.3 The Command Descriptor Block (CDB)...................................................................................................... 22
4.3.1 CDB usage and structure ........................................................................................................................ 22
4.3.2 The fixed length CDB formats ................................................................................................................. 23
4.3.3 The variable length CDB formats ............................................................................................................ 26
4.3.4 Common CDB fields ................................................................................................................................ 27
4.3.4.1 Operation code ..................................................................................................................................... 27
4.3.4.2 Service action ....................................................................................................................................... 28
4.3.4.3 Logical block address ........................................................................................................................... 28
4.3.4.4 Transfer length ..................................................................................................................................... 28
4.3.4.5 Parameter list length............................................................................................................................. 29
4.3.4.6 Allocation length ................................................................................................................................... 29
4.3.4.7 Control .................................................................................................................................................. 29
4.4 Data field requirements .............................................................................................................................. 29
4.4.1 ASCII data field requirements.................................................................................................................. 29
4.4.2 Null data field termination and zero padding requirements ..................................................................... 29
4.5 Sense data ................................................................................................................................................. 30
4.5.1 Sense data introduction........................................................................................................................... 30
4.5.2 Descriptor format sense data .................................................................................................................. 31
4.5.2.1 Descriptor format sense data overview ................................................................................................ 31
4.5.2.2 Information sense data descriptor ........................................................................................................ 33
4.5.2.3 Command-specific information sense data descriptor.......................................................................... 33
4.5.2.4 Sense key specific sense data descriptor ............................................................................................ 34
4.5.2.4.1 Sense key specific sense data descriptor introduction...................................................................... 34
4.5.2.4.2 Field pointer sense key specific data................................................................................................. 35
