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BSI 18/30387672 DC:2018 Edition

BSI 18/30387672 DC:2018 Edition

$24.66

BS ISO/IEC 14776-415. Information technology. SCSI Architecture Model. 5 (SAM-5)

Published By Publication Date Number of Pages
BSI 2018 212
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PDF Catalog

PDF Pages PDF Title
16 FOREWORD
17 Introduction
General
SCSI standards family
18 1 Scope
2 Normative references
3 Definitions, symbols, abbreviations, and conventions
3.1 Definitions
additional sense code
19 aggregation
application client
argument
association
attribute
auto contingent allegiance
background operation
20 blocking boundary
byte
class
class diagram
client
client-server
command
command completion
command descriptor block
21 command duration limit
command identifier
command priority
command standard
completed command
confirmation
constraint
copy manager
current command
22 deferred error
dependency
dependent logical unit
device model
device server
device service request
device service response
extended logical unit addressing
faulted I_T nexus
field
23 generalization
hard reset
hierarchical LUN structure
hierarchical logical unit
I_T nexus
I_T nexus loss
I_T nexus loss event
I_T nexus transaction
I_T_L nexus
identifier
24 implicit head of queue
incorrect logical unit number
initiator port identifier
initiator port name
instance
in transit
layer
link
logical unit
25 logical unit inventory
logical unit name
logical unit number
logical unit reset
logical unit reset event
management logical unit
multiplicity
name
nexus
non-faulted I_T nexus
26 object
object diagram
operation
peer entities
power loss expected
power loss expected event
power on
power on event
procedure
27 procedure call
protocol
queue
receiver
reference model
relative port identifier
request-response transaction
reset event
role
SCSI application layer
28 SCSI device
SCSI device name
SCSI domain
SCSI event
SCSI I/O operation
SCSI I/O system
SCSI initiator device
SCSI initiator port
29 SCSI port
SCSI target device
SCSI target port
SCSI transport protocol layer
SCSI transport protocol service confirmation
SCSI transport protocol service indication
SCSI transport protocol service request
SCSI transport protocol service response
SCSI transport protocol specific
sender
30 sense data
sense key
server
server request
server response
service
service delivery failure
service delivery subsystem
service delivery transaction
standard INQUIRY data
target port identifier
31 target port name
task
task attribute
task management function
task management request
task management response
task manager
task router
task set
32 task tag
token
transaction
transport protocol standard
well known logical unit
well known logical unit number
3.2 Symbols and Acronyms
3.2.1 Abbreviations
33 3.2.2 Units
3.3 Keywords
invalid
mandatory
may
may not
34 obsolete
option, optional
prohibited
reserved
restricted
shall
should
vendor specific
35 3.4 Editorial conventions
3.5 Numeric and character conventions
3.5.1 Numeric conventions
36 3.5.2 Byte encoded character strings conventions
3.6 UML notation conventions
3.6.1 Notation conventions overview
37 3.6.2 Constraint and note conventions
38 3.6.3 Class diagram conventions
43 3.6.4 Object diagram conventions
45 3.7 State machine conventions
3.7.1 State machine conventions overview
46 3.7.2 Transitions
3.7.3 Messages, requests, indications, confirmations, responses, and event notifications
47 3.7.4 State machine counters, timers, and variables
3.8 Bit and byte ordering
49 3.9 Notation for procedure calls
50 4 SCSI architecture model
4.1 Introduction
4.2 Compliance requirements
52 4.3 The SCSI distributed service model
53 4.4 The SCSI client-server model
4.4.1 SCSI client-server model overview
54 4.4.2 Synchronizing client and server changes
4.4.3 Server request/response ordering
55 4.5 The SCSI structural model
56 4.6 SCSI classes
4.6.1 SCSI classes overview
57 4.6.2 SCSI Domain class
58 4.6.3 Service Delivery Subsystem class
4.6.4 SCSI Device class
4.6.4.1 SCSI Device class overview
59 4.6.4.2 SCSI Device Name attribute
60 4.6.5 SCSI Port class
4.6.5.1 SCSI Port class overview
61 4.6.5.2 Relative Port Identifier attribute
4.6.6 SCSI Target Port class
4.6.6.1 SCSI Target Port class overview
4.6.6.2 Target Port Identifier attribute
62 4.6.6.3 Target Port Name attribute
4.6.6.4 Send Data-In operation
4.6.6.5 Receive Data-Out operation
4.6.6.6 Terminate Data Transfer operation
4.6.6.7 Send Command Complete operation
4.6.6.8 Task Management Function Executed operation
4.6.7 Task Router class
4.6.7.1 Task Router class overview
63 4.6.7.2 Route Command operation
4.6.7.3 Route Task Management Function operation
64 4.6.7.4 Reroute Conglomerate Command operation
4.6.7.5 Reroute Conglomerate Task Management Functions operation
65 4.6.7.6 Stop Conglomerate Task Management Functions Rerouting operation
4.6.8 SCSI Initiator Port class
4.6.8.1 SCSI Initiator Port class overview
66 4.6.8.2 Initiator Port Identifier attribute
4.6.8.3 Initiator Port Name attribute
4.6.8.4 Send SCSI Command operation
4.6.8.5 Send Task Management Request operation
4.6.8.6 Get Initiator Port Identifier operation
4.6.8.7 Get Initiator Port Name operation
67 4.6.9 SCSI Target Device class
68 4.6.10 Logical Unit Conglomerate class
69 4.6.11 Level 1 Hierarchical Logical Unit class
70 4.6.12 Level 2 Hierarchical Logical Unit class
71 4.6.13 Level 3 Hierarchical Logical Unit class
4.6.14 Level 4 Hierarchical Logical Unit class
4.6.15 Hierarchical Logical Unit class
4.6.16 Management Logical Unit class
72 4.6.17 Well Known Logical Unit class
4.6.18 Logical Unit class
4.6.18.1 Logical Unit class overview
74 4.6.18.2 LUN attribute
4.6.18.3 Logical Unit Name attribute
75 4.6.18.4 Dependent Logical Unit attribute
4.6.18.5 Device Type attribute
4.6.19 Device Server class
4.6.19.1 Device Server class overview
4.6.19.2 Data-In Delivered operation
4.6.19.3 Data-Out Received operation
76 4.6.19.4 Data Transfer Terminated operation
4.6.20 Copy Manager class
4.6.20.1 Copy Manager class overview
4.6.20.2 Create ROD Token operation
4.6.20.3 Process ROD Token operation
4.6.21 Task Manager class
4.6.21.1 Task Manager class overview
4.6.21.2 SCSI Command Received operation
77 4.6.21.3 Task Management Request Received operation
4.6.21.4 Data Transfer Terminated operation
4.6.21.5 Nexus Loss operation
4.6.21.6 Transport Reset operation
4.6.21.7 Power Loss Expected operation
4.6.22 Task Set class
4.6.23 Command class
4.6.23.1 Command class overview
4.6.23.2 I_T_L Nexus attribute
78 4.6.23.3 Command Identifier attribute
4.6.23.4 Task Attribute attribute
4.6.23.5 CDB attribute
4.6.23.6 CRN attribute
4.6.23.7 Command Priority attribute
4.6.23.8 Status attribute
4.6.23.9 Sense Data attribute
4.6.23.10 Sense Data Length attribute
4.6.23.11 Service Response attribute
4.6.23.12 Status Qualifier attribute
4.6.23.13 First Burst Enabled attribute
4.6.23.14 Device Server Buffer attribute
79 4.6.23.15 Application Client Buffer Offset attribute
4.6.23.16 Request Byte Count attribute
4.6.23.17 Delivery Result attribute
4.6.24 Task Management Function class
4.6.24.1 Task Management Function class overview
4.6.24.2 Function Identifier attribute
4.6.24.3 I_T Nexus attribute
4.6.24.4 I_T_L Nexus attribute
4.6.24.5 Command Identifier attribute
4.6.24.6 Service Response attribute
80 4.6.24.7 Additional Response Information attribute
4.6.25 Administrative Logical Unit class
4.6.25.1 Administrative Logical Unit class overview
4.6.25.2 Rerouted commands and task management functions
4.6.25.2.1 Overview
4.6.25.2.2 Commands rerouted due to incorrect logical unit selection
4.6.25.2.3 Command rerouting in response to an administrative logical unit request
81 4.6.25.2.4 Task management function rerouting in response to an administrative logical unit request
82 4.6.26 Subsidiary Logical Unit class
4.6.26.1 Subsidiary Logical Unit class overview
4.6.26.2 Binding attribute
4.6.26.3 Host Bind Identifier attribute
83 4.6.27 SCSI Initiator Device class
84 4.6.28 Application Client class
4.6.28.1 Application Client class overview
4.6.28.2 Command Complete Received operation
4.6.28.3 Received Task Management Function Executed operation
85 4.6.28.4 Nexus Loss operation
4.6.28.5 Transport Reset operation
4.6.29 Application Client Task Management Function class
4.6.29.1 Application Client Task Management Function class overview
4.6.29.2 Function Identifier attribute
4.6.29.3 I_T Nexus attribute
4.6.29.4 I_T_L Nexus attribute
4.6.29.5 Command Identifier attribute
4.6.29.6 Service Response attribute
4.6.29.7 Additional Response Information attribute
86 4.6.30 Application Client Task Set class
4.6.31 Application Client Command class
4.6.31.1 Application Client Command class overview
4.6.31.2 I_T_L Nexus attribute
4.6.31.3 Command Identifier attribute
87 4.6.31.4 CDB attribute
4.6.31.5 Task Attribute attribute
4.6.31.6 Status attribute
4.6.31.7 Service Response attribute
4.6.31.8 Data-In Buffer attribute
4.6.31.9 Data-In Buffer Size attribute
88 4.6.31.10 Data-Out Buffer attribute
4.6.31.11 Data-Out Buffer Size attribute
4.6.31.12 CRN attribute
4.6.31.13 Command Priority attribute
4.6.31.14 First Burst Enabled attribute
4.6.31.15 Sense Data attribute
4.6.31.16 Sense Data Length attribute
4.6.31.17 Status Qualifier attribute
4.6.32 Discovery class
4.6.32.1 Discovery class overview
89 4.6.32.2 I_T Nexus attribute
4.6.32.3 I_T_L Nexus attribute
4.6.32.4 Return I_T Nexus operation
4.6.32.5 Return I_T_L Nexus operation
4.7 Logical unit number (LUN)
4.7.1 Introduction
90 4.7.2 Logical unit representation format
4.7.3 LUNs overview
4.7.4 Minimum LUN addressing requirements
91 4.7.5 Single level LUN structure
94 4.7.6 Complex LUN structures
4.7.6.1 Complex LUN structures overview
4.7.6.2 Logical unit conglomerate LUN structure
95 4.7.6.3 Hierarchical LUN structure
98 4.7.7 Addressing methods
4.7.7.1 Simple logical unit addressing method
4.7.7.2 Peripheral device addressing method
100 4.7.7.3 Flat space addressing method
101 4.7.7.4 Logical unit addressing method
102 4.7.7.5 Extended logical unit addressing
105 4.7.7.5.1 Well known logical unit addressing
106 4.7.7.5.2 Extended flat space addressing method
4.7.7.5.3 Long extended flat space addressing method
107 4.7.7.5.4 Logical unit not specified addressing
4.8 SCSI ports
4.8.1 SCSI port configurations
108 4.8.2 SCSI devices with multiple SCSI ports
109 4.8.3 SCSI target device with multiple SCSI ports structure
110 4.8.4 SCSI initiator device with multiple SCSI initiator ports structure
4.8.5 SCSI device with multiple SCSI ports structure
111 4.8.6 SCSI initiator device view of SCSI target device with multiple SCSI target ports
114 4.8.7 SCSI target device view of a SCSI initiator device with multiple SCSI initiator ports
115 4.9 The SCSI model for distributed communications
120 5 SCSI command model
5.1 The Execute Command procedure call
121 5.2 Command descriptor block (CDB)
123 5.3 Status
5.3.1 Status codes
124 5.3.2 Status qualifier
127 5.3.3 Status precedence
5.4 SCSI transport protocol services for SCSI commands
5.4.1 SCSI transport protocol services for SCSI commands overview
128 5.4.2 Command and status SCSI transport protocol services
5.4.2.1 Command and status SCSI transport protocol services overview
5.4.2.2 Send SCSI Command SCSI transport protocol service request
5.4.2.3 SCSI Command Received SCSI transport protocol service indication
129 5.4.2.4 Send Command Complete SCSI transport protocol service response
5.4.2.5 Command Complete Received SCSI transport protocol service confirmation
130 5.4.3 Data transfer SCSI transport protocol services
5.4.3.1 Introduction
132 5.4.3.2 Data-In delivery service
5.4.3.2.1 Send Data-In SCSI transport protocol service request
5.4.3.2.2 Data-In Delivered SCSI transport protocol service confirmation
5.4.3.3 Data-Out delivery service
5.4.3.3.1 Receive Data-Out SCSI transport protocol service request
133 5.4.3.3.2 Data-Out Received SCSI transport protocol service confirmation
5.4.3.4 Terminate Data Transfer service
5.4.3.4.1 Terminate Data Transfer SCSI transport protocol service request
134 5.4.3.4.2 Data Transfer Terminated SCSI transport protocol service confirmation
5.5 Command lifetime
135 5.6 Aborting commands
142 5.7 Command processing example
143 5.8 Commands that complete with CHECK CONDITION status
5.8.1 Overview
5.8.2 Handling commands when ACA is not in effect
5.8.3 Aborting commands terminated with a CHECK CONDITION status without establishing an ACA
144 5.9 Auto contingent allegiance (ACA)
5.9.1 ACA overview
5.9.2 Establishing an ACA
145 5.9.3 Handling new commands received on the faulted I_T nexus when ACA is in effect
5.9.4 Handling new commands received on non-faulted I_T nexuses when ACA is in effect
5.9.4.1 Command processing that is permitted for commands received on a non-faulted I_T nexuses during ACA
5.9.4.2 Handling new commands received on non-faulted I_T nexuses when ACA is in effect
146 5.9.5 Clearing an ACA condition
147 5.10 Overlapped commands
148 5.11 Incorrect logical unit numbers for commands
5.12 Task attribute exception conditions
149 5.13 Sense data
5.13.1 Command terminated sense data or polled sense data
5.13.2 Command completed sense data
5.14 Unit attention conditions
5.14.1 Unit attention conditions that are not coalesced
152 5.14.2 Coalescing unit attention conditions
154 6 SCSI events and event notification model
6.1 SCSI events overview
156 6.2 Establishing a unit attention condition subsequent to detection of an event
157 6.3 Conditions resulting from SCSI events
6.3.1 Power on
158 6.3.2 Hard reset
6.3.3 Logical unit reset
159 6.3.4 I_T nexus loss
6.3.5 Power loss expected
160 6.4 SCSI transport protocol services for event notification
6.4.1 SCSI transport protocol service for event notification overview
6.4.2 Nexus Loss SCSI transport protocol service indication
6.4.3 Transport Reset SCSI transport protocol service indication
6.4.4 Power Loss Expected SCSI transport protocol service indication
162 7 Task management functions
7.1 Task management function procedure calls
163 7.2 ABORT TASK
164 7.3 ABORT TASK SET
7.4 CLEAR ACA
165 7.5 CLEAR TASK SET
7.6 I_T NEXUS RESET
166 7.7 LOGICAL UNIT RESET
7.8 QUERY TASK
167 7.9 QUERY TASK SET
7.10 QUERY ASYNCHRONOUS EVENT
169 7.11 Task management function lifetime
170 7.12 SCSI transport protocol services for task management functions
7.12.1 SCSI transport protocol services for task management functions overview
7.12.2 Send Task Management Request SCSI transport protocol service request
7.12.3 Task Management Request Received SCSI transport protocol service indication
171 7.12.4 Task Management Function Executed SCSI transport protocol service response
7.12.5 Received Task Management Function Executed SCSI transport protocol service confirmation
172 7.13 Task management function example
174 8 Task set management
8.1 Task set management overview
8.2 Implicit head of queue
8.3 Command management model
175 8.4 Task attributes
8.4.1 Overview
8.4.2 Commands having the simple task attribute
8.4.3 Commands having the ordered task attribute
8.4.4 Commands having the head of queue task attribute
8.4.5 Commands having the aca task attribute
176 8.5 Command priority
8.6 Command duration limit
8.6.1 Command duration limit overview
177 8.6.2 Command duration scheduling
8.7 LU (logical unit) state machines
8.7.1 LU state machine overview
179 8.7.2 LU_TM (task manager) state machine
8.7.2.1 LU_TM state machine overview
180 8.7.2.2 LU_TM command processing
182 8.7.2.3 LU_TM task management function processing
183 8.7.2.4 LU_TM event processing
185 8.7.2.5 LU_TM terminated command processing
8.7.2.5.1 LU_TM ACA not established
186 8.7.2.5.2 LU_TM ACA established
188 8.7.3 LU_DS (device server) state machine
8.7.3.1 LU_DS state machine overview
8.7.3.2 LU_DS command processing
191 8.7.3.3 LU_DS background processing
192 8.7.4 LU_CS (command state) state machine
8.7.4.1 LU_CS state machine overview
8.7.4.2 LU_CS1:Idle state
8.7.4.2.1 LU_CS1:Idle state description
8.7.4.2.2 Transition LU_CS1:Idle to LU_CS2:Dormant
8.7.4.2.3 Transition LU_CS1:Idle to LU_CS3:Enabled
193 8.7.4.3 LU_CS2:Dormant state
8.7.4.3.1 LU_CS2:Dormant state description
8.7.4.3.2 Transition LU_CS2:Dormant to LU_CS3:Enabled
8.7.4.3.3 Transition LU_CS2:Dormant to LU_CS1:Idle
8.7.4.4 LU_CS3:Enabled state
8.7.4.4.1 LU_CS1:Enabled state description
194 8.7.4.4.2 Transition LU_CS3:Enabled to LU_CS1:Idle
8.7.4.4.3 Transition LU_CS3:Enabled to LU_CS4:Blocked
8.7.4.4.4 Transition LU_CS3:Enabled to LU_CS5:Completed
8.7.4.5 LU_CS4:Blocked state
8.7.4.5.1 LU_CS4:Blocked state description
8.7.4.5.2 Transition LU_CS4:Blocked to LU_CS3:Enabled
195 8.7.4.5.3 Transition LU_CS4:Blocked to LU_CS5:Completed
8.7.4.6 LU_CS5:Completed state
8.7.4.6.1 LU_CS5:Completed state description
8.7.4.6.2 Transition LU_CS5:Completed to LU_CS1:Idle
8.8 Task set management examples
8.8.1 Introduction
196 8.8.2 Commands having the head of queue task attribute
198 8.8.3 Commands having the ordered task attribute
199 8.8.4 Commands having the aca task attribute
200 Annex A
Identifiers and names for objects
A.1 Identifiers and names overview
201 A.2 Identifiers and names
206 Annex B
SCSI Initiator Port attributes and SCSI Target Port attributes supported by SCSI transport protocols
210 Annex C
Terminology mapping
C.1 Terminology mapping to SAM-3
C.2 Terminology mapping to SAM-4
211 Annex D
SCSI transport protocol acronyms
EUI-64 (Extended Unique Identifier, a 64-bit globally unique identifier):
NAA:
SAS SSP:
UTF-8:
212 Annex E
Bibliography
BSI 18/30387672 DC
$24.66