1、American National StandardDeveloped byfor Information Technology Serial Attached SCSI - 1.1(SAS-1.1)ANSI INCITS 417-2006ANSIINCITS417-2006Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from
2、 IHS-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSIINCITS 417-2006American National Standardfor Information Technology Serial Attached SCSI - 1.1(SAS-1.1)SecretariatIn
3、formation Technology Industry CouncilApproved June 12, 2006 American National Standards Institute, Inc.AbstractThis standard specifies the functional requirements for the Serial Attached SCSI (SAS) physical interconnect, which is compatible with the Serial ATA physical interconnect. It also specifie
4、s three transport protocols, one to transport SCSI commands, another to transport Serial ATA commands to multiple SATA devices, and a third to support interface management. This standard is intended to be used in conjunction with SCSI and ATA command set standards.Copyright American National Standar
5、ds Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other criteria for approval havebeen met by t
6、he standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority, but not necessarily unanimity. Consensus requ
7、ires that allviews and objections be considered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedthe standards or not, from manufacturing, market
8、ing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no person shall have the right or authority
9、to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTION NOTICE: This American National Standard may b
10、e revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current information on all standards by calling or writing the A
11、mericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2006 by Information Technology Industry Council (ITI)All rights reserved.No part of this publication may be reproduced in anyform, in
12、an electronic retrieval system or otherwise,without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of AmericaCAUTION: The developers of this standard have requested that holders of patents that may be re-quired for the implementation of the st
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16、any standard it processes. No representation ismade or implied that this is the only license that may be required to avoid infringement in the use ofthis standard.Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permi
17、tted without license from IHS-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ContentsPageForeword .xlIntroduction . xlii1 Scope 12 Normative references 32.1 Normative refer
18、ences 32.2 Approved references. 32.3 References under development 42.4 Other references. 43 Definitions, symbols, abbreviations, keywords, and conventions . 63.1 Definitions . 63.2 Symbols and abbreviations. 193.3 Keywords 223.4 Editorial conventions. 233.5 Class diagram and object diagram conventio
19、ns . 243.6 State machine conventions. 293.6.1 State machine conventions overview 293.6.2 Transitions 293.6.3 Messages, requests, indications, confirmations, responses, and event notifications 303.6.4 State machine counters, timers, and variables. 303.6.5 State machine arguments. 303.7 Bit and byte o
20、rdering. 313.8 Notation for procedures and functions 314 General . 324.1 Architecture. 324.1.1 Architecture overview 324.1.2 Physical links and phys. 334.1.3 Ports (narrow ports and wide ports) 374.1.4 SAS devices 404.1.5 Expander devices (edge expander devices and fanout expander devices) 414.1.6 S
21、ervice delivery subsystem 434.1.7 Domains 444.1.8 Expander device topologies 464.1.8.1 Expander device topology overview . 464.1.8.2 Edge expander device set 464.1.8.3 Expander device topologies 474.1.9 Pathways 504.1.10 Connections 51i4.2 Names and identifiers . 534.2.1 Names and identifiers overvi
22、ew 53Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHSPage4.2.2 SAS address. 544.2.3 Hashed SAS address . 554.2.4 Device names . 554.2.5 Port names . 554.2.6 Port identifiers. 554.2.7
23、 Phy identifiers . 564.3 State machines . 574.3.1 State machine overview 574.3.2 Transmit data path 594.3.3 Receive data path. 634.3.4 State machines and SAS device, SAS port, and SAS phy classes 664.4 Resets. 674.4.1 Reset overview . 674.4.2 Hard reset . 694.4.2.1 Hard reset overview 694.4.2.2 Addi
24、tional hard reset processing by SAS ports 694.4.2.3 Additional hard reset processing by expander ports. 694.5 I_T nexus loss. 694.6 Expander device model 704.6.1 Expander device model overview . 704.6.2 Expander ports . 714.6.3 Expander connection manager (ECM) . 724.6.4 Expander connection router (
25、ECR). 724.6.5 Broadcast primitive processor (BPP) 724.6.6 Expander device interfaces 724.6.6.1 Expander device interface overview . 724.6.6.2 Expander device interfaces detail. 744.6.6.3 ECM interface . 754.6.6.4 ECR interface . 774.6.6.5 BPP interface 794.6.7 Expander device routing . 794.6.7.1 Rou
26、ting attributes and routing methods 794.6.7.2 Connection request routing. 804.6.7.3 Expander route table 814.7 Discover process 814.7.1 Discover process overview . 814.7.2 Allowed topologies 834.7.3 Discover process optimization 844.7.4 Expander route index order 854.8 Phy test functions . 925 Physi
27、cal layer 935.1 Physical layer overview 935.2 Passive interconnect. 935.2.1 SATA connectors and cable assemblies 935.2.2 SAS connectors and cables 935.2.3 Connectors . 98ii5.2.3.1 Connectors overview 98-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not f
28、or ResaleNo reproduction or networking permitted without license from IHS-,-,-Page5.2.3.2 SAS internal connectors 995.2.3.2.1 SAS Drive connectors. 995.2.3.2.1.1 SAS Drive plug connector. 995.2.3.2.1.2 SAS Drive cable receptacle connector 995.2.3.2.1.3 SAS Drive backplane receptacle connector 1005.2
29、.3.2.1.4 SAS Drive connector pin assignments 1015.2.3.2.2 SAS 4i connectors. 1035.2.3.2.2.1 SAS 4i cable receptacle connector . 1035.2.3.2.2.2 SAS 4i plug connector. 1035.2.3.2.2.3 SAS 4i connector pin assignments . 1045.2.3.2.3 Mini SAS 4i connectors . 1065.2.3.2.3.1 Mini SAS 4i cable plug connecto
30、r . 1065.2.3.2.3.2 Mini SAS 4i receptacle connector . 1065.2.3.2.3.3 Mini SAS 4i connector pin assignments 1075.2.3.3 SAS external connectors. 1095.2.3.3.1 SAS 4x connectors 1095.2.3.3.1.1 SAS 4x cable plug connector 1095.2.3.3.1.2 SAS 4x receptacle connector 1095.2.3.3.1.3 SAS 4x connector pin assi
31、gnments 1115.2.3.3.2 Mini SAS 4x connectors 1115.2.3.3.2.1 Mini SAS 4x cable plug connector 1115.2.3.3.2.2 Mini SAS 4x receptacle connector 1135.2.3.3.2.3 Mini SAS 4x connector pin assignments. 1165.2.4 Cable assemblies 1165.2.4.1 SAS internal cable assemblies 1165.2.4.1.1 SAS Drive cable assemblies
32、 . 1165.2.4.1.2 SAS internal symmetric cable assemblies 1175.2.4.1.2.1 SAS internal symmetric cable assemblies overview . 1175.2.4.1.2.2 SAS internal symmetric cable assembly - SAS 4i. 1195.2.4.1.2.3 SAS internal symmetric cable assembly - Mini SAS 4i . 1205.2.4.1.2.4 SAS internal symmetric cable as
33、sembly - SAS 4i to Mini SAS 4i 1215.2.4.1.3 SAS internal fanout cable assemblies. 1225.2.4.1.3.1 SAS internal fanout cable assemblies overview . 1225.2.4.1.3.2 SAS internal controller-based fanout cable assemblies 1235.2.4.1.3.3 SAS internal backplane-based fanout cable assemblies 1255.2.4.2 SAS ext
34、ernal cable assemblies. 1265.2.4.2.1 SAS external cable assemblies overview . 1265.2.4.2.2 SAS external cable assembly - SAS 4x 1275.2.4.2.3 SAS external cable assembly - Mini SAS 4x. 1285.2.4.2.4 SAS external cable assembly - SAS 4x to Mini SAS 4x 1305.2.5 Backplanes 1305.2.6 Cable assembly and bac
35、kplane specifications 1315.3 Transmitter and receiver device electrical characteristics. 1365.3.1 Compliance points. 1365.3.2 Test loads 1435.3.2.1 Test loads overview 1435.3.2.2 Zero-length test load 1445.3.2.3 TCTF test load 1455.3.2.4 Low-loss TCTF test load . 147iii5.3.3 General electrical chara
36、cteristics 148Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page5.3.4 Transmitter and receiver device transients. 1515.3.5 Eye masks 1515.3.5.1 Eye masks overview . 1515.3.5.2
37、 Transmitter device eye mask 1525.3.5.3 Receiver device eye mask 1525.3.5.4 Receiver device jitter tolerance eye mask 1535.3.6 Transmitter device characteristics 1545.3.6.1 Transmitter device characteristics overview . 1545.3.6.2 Transmitter device signal output characteristics as measured with the
38、zero-length test load . 1555.3.6.3 Transmitter device signal output characteristics as measured with each test load 1555.3.6.4 Transmitter device maximum jitter 1575.3.6.5 Transmitter device signal output levels for OOB signals 1575.3.7 Receiver device characteristics 1575.3.7.1 Receiver device char
39、acteristics overview . 1575.3.7.2 Delivered signal (receiver device signal tolerance) characteristics 1585.3.7.3 Maximum delivered jitter. 1605.3.7.4 Receiver device jitter tolerance. 1605.3.8 Spread spectrum clocking 1615.3.9 Non-tracking clock architecture 1615.4 READY LED signal electrical charac
40、teristics 1616 Phy layer. 1636.1 Phy layer overview 1636.2 8b10b coding 1636.2.1 8b10b coding overview . 1636.2.2 8b10b coding introduction. 1636.2.3 8b10b coding notation conventions 1636.3 Character encoding and decoding 1646.3.1 Introduction . 1646.3.2 Transmission order . 1646.3.3 Data and contr
41、ol characters 1656.3.4 Encoding characters in the transmitter . 1716.3.5 Decoding characters in the receiver . 1726.4 Dwords, primitives, data dwords, and invalid dwords . 1726.5 Bit order 1726.6 Out of band (OOB) signals . 1746.6.1 OOB signals overview 1746.6.2 Transmitting OOB signals. 1756.6.3 Re
42、ceiving OOB signals. 1776.6.4 Transmitting the SATA port selection signal. 1796.7 Phy reset sequences 1796.7.1 Phy reset sequences overview . 1796.7.2 SATA phy reset sequence 1806.7.2.1 SATA OOB sequence. 1806.7.2.2 SATA speed negotiation sequence 181iv6.7.3 SAS to SATA phy reset sequence 181Copyrig
43、ht American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page6.7.4 SAS to SAS phy reset sequence 1826.7.4.1 SAS OOB sequence . 1826.7.4.2 SAS speed negotiation sequence. 1856.7.4.2.1 SAS speed
44、negotiation sequence overview 1856.7.4.2.2 Speed negotiation window 1856.7.4.2.3 SAS speed negotiation sequence. 1866.7.5 Phy reset sequence after devices are attached 1886.8 SP (phy layer) state machine 1896.8.1 SP state machine overview. 1896.8.2 SP transmitter and receiver. 1916.8.3 OOB sequence
45、states. 1926.8.3.1 OOB sequence states overview 1926.8.3.2 SP0:OOB_COMINIT state 1936.8.3.2.1 State description . 1936.8.3.2.2 Transition SP0:OOB_COMINIT to SP1:OOB_AwaitCOMX 1936.8.3.2.3 Transition SP0:OOB_COMINIT to SP3:OOB_AwaitCOMINIT_Sent . 1936.8.3.2.4 Transition SP0:OOB_COMINIT to SP4:OOB_COM
46、SAS 1936.8.3.3 SP1:OOB_AwaitCOMX state 1936.8.3.3.1 State description . 1936.8.3.3.2 Transition SP1:OOB_AwaitCOMX to SP0:OOB_COMINIT 1946.8.3.3.3 Transition SP1:OOB_AwaitCOMX to SP4:OOB_COMSAS 1946.8.3.4 SP2:OOB_NoCOMSASTimeout state 1946.8.3.4.1 State description . 1946.8.3.4.2 Transition SP2:OOB_N
47、oCOMSASTimeout to SP0:OOB_COMINIT . 1946.8.3.4.3 Transition SP2:OOB_NoCOMSASTimeout to SP4:OOB_COMSAS. 1946.8.3.5 SP3:OOB_AwaitCOMINIT_Sent state 1946.8.3.5.1 State description . 1946.8.3.5.2 Transition SP3:OOB_AwaitCOMINIT_Sent to SP4:OOB_COMSAS 1946.8.3.6 SP4:OOB_COMSAS state 1946.8.3.6.1 State de
48、scription . 1946.8.3.6.2 Transition SP4:OOB_COMSAS to SP5:OOB_AwaitCOMSAS_Sent 1956.8.3.6.3 Transition SP4:OOB_COMSAS to SP6:OOB_AwaitNoCOMSAS 1956.8.3.6.4 Transition SP4:OOB_COMSAS to SP7:OOB_AwaitCOMSAS. 1956.8.3.7 SP5:OOB_AwaitCOMSAS_Sent state 1956.8.3.7.1 State description . 1956.8.3.7.2 Transi
49、tion SP5:OOB_AwaitCOMSAS_Sent toSP6:OOB_AwaitNoCOMSAS 1956.8.3.8 SP6:OOB_AwaitNoCOMSAS state. 1956.8.3.8.1 State description . 1956.8.3.8.2 Transition SP6:OOB_AwaitNoCOMSAS to SP0:OOB_COMINIT. 1956.8.3.8.3 Transition SP6:OOB_AwaitNoCOMSAS to SP8:SAS_Start. 1956.8.3.9 SP7:OOB_AwaitCOMSAS state . 1956.8.3.9.
