CAN CSA-ISO IEC 14776-342-2002 Information technology – Small Computer System Interface – Part 342 Controller Commands-2 (SCC-2).pdf

1、 Information technology Small Computer System Interface Part 342:Controller Commands-2 (SCC-2)Reference numberISO/IEC 14776-342:2000(E)National Standard of CanadaCAN/CSA-ISO/IEC 14776-342:02(ISO/IEC 14776-342:2000)International Standard ISO/IEC 14776-342:2000 (first edition, 2000-06) has been adopte

2、d withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 14776-342:02, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55324-892-9 December 2002The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices th

3、is National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a federation of independent, autonomousthe Standards Council of Canada to the National organizations working towards the furtherStandards system in 1973. It is a not-fo

4、r-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national interest.engaged in standards development and certification The principal objects of the Council are to foster activities. and promote voluntary standardization as a means

5、 CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufacturers, health, safety, and welfare of the public, assisting consumers, retailers, unions and professional and protecting the consumer, facilitating domestic organizat

6、ions, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the field of standards.and often adopted by municipal, provincial, and A National Standard of Canada is a standard whichfederal governments in t

7、heir regulations, particularly has been approved by the Standards Council ofin the fields of health, safety, building and Canada and one which reflects a reasonableconstruction, and the environment. agreement among the views of a number of capableIndividuals, companies, and associations across indiv

8、iduals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance ofdevelopment by volunteering their time and skills to representation of producers, users, consumers, andCSA Committee work and supporting the Associations others wi

9、th relevant interests, as may be appropriateobjectives through sustaining memberships. The to the subject in hand. It normally is a standardmore than 7000 committee volunteers and the 2000 which is capable of making a significant and timelysustaining memberships together form CSAs total contribution

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11、lished by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in support of and as an extension to its technical content of the standard; this remains thestandards development activities. To ensure the continuing responsibility of t

12、he accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Those who have a need to apply standards arethat bear the CSA Mark. encouraged to use National Standards of CanadaIn addition to its head off

13、ice and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to periodic review; therefore, users are cautioned centres across Canada and inspection and testing to obtain the latest edition from the organizationagencies in eight co

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15、Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanational and international needs.For further information on CSA services, w

16、rite toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular

17、purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 14776-342:02 Part 342: Controller Commands-2 (SCC-2)Information technology Small Computer System Interface December 2002 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 14776-342:02Information technology SmallComputer

18、 System Interface Part 342: Controller Commands-2(SCC-2)CSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Commi

19、ttee (CAC) on ISO/IEC Joint Technical Committee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada pa

20、rticipates in the International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is a

21、vailable on request from the CSA Project Manager.) From time to time,ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approvaland publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representat

22、ive. This Standard has been formally approved, without modification, bythe Technical Committee and has been approved as a National Standard of Canada by the StandardsCouncil of Canada.December 2002 Canadian Standards Association 2002All rights reserved. No part of this publication may be reproduced

23、in any form whatsoever without the prior permissionof the publisher. ISO/IEC material is reprinted with permission. Where the words “this International Standard” appearin the text, they should be interpreted as “this National Standard of Canada”. Inquiries regarding this National Standard of Canada

24、should be addressed to Canadian Standards Association 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044www.csa.caINTERNATIONALSTANDARDISO/IEC14776-342First edition2000-06Information technology Small Computer System Interface Part 342:Controller Commands-2

25、 (SCC-2)Reference numberISO/IEC 14776-342:2000(E)PATENT STATEMENTThe International Organization for Standardization (ISO) andInternational Electrotechnical Commission (IEC) draw attention to thefact that it is claimed that compliance with this International Standardmay involve the use of patents con

26、cerning SCC-2.The ISO and IEC take no position concerning the evidence, validityand scope of the patent rights. The holder of the putative patent rightshas assured the ISO and IEC that they are willing to negociatelicences under reasonable and non-discriminatory terms andconditions with applicants t

27、hroughout the world. In this respect, thestatement of the holder of the putative patent rights is registered withthe ISO and IEC. Information my be obtained from:IBM CorporationIntellectual Property Licensing5600 Cottle RoadSan Jose, CA 95153Attention is drawn to the possibility that some of the ele

28、ments of thisInternational Standard may be the subject of patent rights other thanthose identified above. ISO and IEC shall not be held responsible foridentifying any or all such patent rights.INTERNATIONALSTANDARDISO/IEC14776-342First edition2000-06Information technology Small Computer System Inter

29、face Part 342:Controller Commands-2 (SCC-2) ISO/IEC 2000All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by anymeans, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publis

30、her.ISO/IEC Copyright Office Case postale 56 CH-1211 Genve 20 SwitzerlandPRICE CODEXDFor price, see current catalogue14776-342 ISO/IEC:2000(E)SCSI Controller Commands-2 iiContentsPageIntroduction x1 Scope 13 Definitions, symbols, abbreviations, and conventions 13.1 Definitions .13.2 Symbols and abbr

31、eviations .43.3 Keywords 43.4 Conventions 54 General .65 Models for systems containing arrays of devices .75.1 Model overview .75.2 System layering model 75.2.1 SACL functions 75.2.2 Protocol conversion layer .85.2.3 Storage array conversion layer (SACL) .95.2.4 Examples of system layering variation

32、s .105.2.5 Branch of generic layers 115.2.6 Software SACL with a branch of SCSI disks 125.2.7 Branch with HBA SACL 135.2.8 Branch with bridge controller SACL .145.2.9 Branch with SACLs in multiple layers 155.3 Model for SCSI storage arrays 155.3.1 SCSI storage array addressing 165.3.1.1 SCSI storage

33、 array LUN_Z address .165.3.1.2 Direct addressing 165.3.1.2.1 Eight byte LUN structure 165.3.1.2.2 Logical unit address method 185.3.1.2.3 Peripheral device address method .185.3.1.2.4 Volume set address method 195.3.1.3 Indirect addressing 205.3.1.3.1 Component device address method 205.3.1.3.2 Log

34、ical unit address method 205.3.1.3.3 Peripheral device address method .205.3.1.3.4 Redundancy group address method 215.3.1.3.5 Spare address method .215.3.1.3.6 Volume set address method 215.3.2 SCSI storage array objects 215.3.2.1 Adding objects .225.3.2.2 Association of objects .225.3.2.3 Attachme

35、nt of objects 225.3.2.4 Covering of objects .225.3.2.5 Exchanging objects .235.3.2.6 Protected objects 235.3.2.7 Removing objects 235.3.2.8 Component device 235.3.2.9 Peripheral device 235.3.2.10 P_extent 245.3.2.11 Ps_extent 245.3.2.12 Redundancy group 245.3.2.12.1 No redundancy method of check dat

36、a mapping .285.3.2.12.2 Copy redundancy method of check data mapping .282 Normative references 1Foreword ix14776-342 ISO/IEC:2000(E)iii SCSI Controller Commands-2 5.3.2.12.3 XOR or P+Q redundancy method of check data mapping .285.3.2.12.4 S redundancy method of check data mapping .285.3.2.12.5 P+S r

37、edundancy method of check data mapping 285.3.2.12.6 Vendor specific redundancy method of check data mapping .295.3.2.13 Spares .295.3.2.14 Volume sets 305.3.3 SCSI storage array operations .355.3.3.1 Deassign LUN_V operation .355.3.3.2 Rebuild operation 355.3.3.3 Recalculate operation .355.3.3.4 Reg

38、enerate operation .355.3.3.5 Verify operation .355.3.4 SCSI storage array states 355.3.5 SCSI storage array configuration options 365.3.5.1 Simple configuration method .365.3.5.2 Basic configuration method .365.3.5.3 General configuration method .375.3.6 SCSI storage array exception conditions .386

39、Commands for SCSI storage array devices .396.1 Op codes for SCSI storage array commands .396.2 Glossary of SCSI storage array service actions 396.2.1 MAINTENANCE (IN) command service actions 396.2.1.11 MAINTENANCE (OUT) command service actions .406.2.1.20 REDUNDANCY GROUP (IN) command service action

40、s 406.2.1.24 REDUNDANCY GROUP (OUT) command service actions 416.2.1.33 SPARE (IN) command service actions .416.2.1.36 SPARE (OUT) command service actions .416.2.1.40 VOLUME SET (IN) command service actions 416.2.1.45 VOLUME SET (OUT) command service actions 416.3 MAINTENANCE(IN) command .436.3.1 MAI

41、NTENANCE(IN) command service actions .436.3.1.1 REPORT ASSIGNED/UNASSIGNED P_EXTENT service action 436.3.1.2 REPORT COMPONENT DEVICE service action .466.3.1.3 REPORT COMPONENT DEVICE ATTACHMENTS service 496.3.1.4 REPORT DEVICE IDENTIFICATION service action 526.3.1.5 REPORT PERIPHERAL DEVICE service

42、action 536.3.1.6 REPORT PERIPHERAL DEVICE ASSOCIATIONS service action 556.3.1.7 REPORT PERIPHERAL DEVICE/COMPONENT DEVICE IDENTIFIER service action 576.3.1.8 REPORT STATES service action .596.3.1.9 REPORT SUPPORTED CONFIGURATION METHOD service action .666.3.1.10 REPORT UNCONFIGURED CAPACITY service

43、action .686.4 MAINTENANCE (OUT) commands 706.4.1 MAINTENANCE (OUT) command service actions 706.4.1.1 ADD PERIPHERAL DEVICE/COMPONENT DEVICE service action .706.4.1.2 ATTACH TO COMPONENT DEVICE service action 716.4.1.3 BREAK PERIPHERIAL DEVICE/COMPONENT DEVICE service action .736.4.1.4 EXCHANGE P_EXT

44、ENT service action .746.4.1.5 EXCHANGE PERIPHERAL DEVICE/COMPONENT DEVICE service action 756.4.1.6 INSTRUCT COMPONENT DEVICE service action 766.4.1.7 REMOVE PERIPHERAL DEVICE/COMPONENT DEVICE service action .776.4.1.8 SET PERIPHERAL DEVICE/COMPONENT DEVICE IDENTIFIER service action 786.5 REDUNDANCY

45、GROUP (IN) command .806.5.1 REDUNDANCY GROUP (IN) command service actions .806.5.1.1 REPORT BASIC REDUNDANCY GROUP service action 806.5.1.2 REPORT REDUNDANCY GROUPS service action .836.5.1.3 REPORT UNASSIGNED REDUNDANCY GROUP SPACE service action 876.6 REDUNDANCY GROUP (OUT) command .906.6.1 REDUNDA

46、NCY GROUP (OUT) command service actions .906.6.1.1 CONTROL GENERATION OF CHECK DATA service action .916.6.1.2 CREATE/MODIFY BASIC REDUNDANCY GROUP service action .9214776-342 ISO/IEC:2000(E)SCSI Controller Commands-2 iv6.6.1.3 CREATE/MODIFY REDUNDANCY GROUP service action .976.6.1.4 DELETE REDUNDANC

47、Y GROUP service action .1016.6.1.5 REBUILD P_EXTENT service action 1026.6.1.6 REBUILD PERIPHERAL DEVICE service action .1056.6.1.7 RECALCULATE CHECK DATA service action .1086.6.1.8 VERIFY CHECK DATA service action 1096.7 VOLUME SET (IN) command .1126.7.1 VOLUME SET (IN) command service actions .1126

48、.7.1.1 REPORT BASIC VOLUME SET service action 1126.7.1.2 REPORT STORAGE ARRAY CONFIGURATION service action .1156.7.1.3 REPORT UNASSIGNED VOLUME SETS service action .1186.7.1.4 REPORT VOLUME SETS service action 1206.8 VOLUME SET (OUT) command .1236.8.1 VOLUME SET (OUT) command service actions .1236.8

49、.1.1 ASSIGN LUN_V service action .1246.8.1.2 CONTROL GENERATION OF CHECK DATA service action .1266.8.1.3 CONTROL WRITE OPERATIONS service action 1276.8.1.4 CREATE/MODIFY BASIC VOLUME SET service action 1286.8.1.5 CREATE/MODIFY STORAGE ARRAY CONFIGURATION service action 1336.8.1.6 CREATE/MODIFY VOLUME SET service action .1386.8.1.7 DEASSIGN LUN_V service action 1426.8.1.8 DELETE VOLUME SET service action .1436.8.1.9 RECALCULATE VOLUME SET CHECK DATA service action .1446.8.1.10 VERIFY VOLUME SET CHECK DATA service action 1466.9 SPARE (IN) command 1496.9