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1、 INTERNATIONAL STANDARD ISO/IEC 14776-351 First edition 2007-01 Information technology Small computer system interface-3 (SCSI-3) Part 351: Medium changer commands (SMC) Reference number ISO/IEC 14776-351:2007(E) Copyright International Organization for Standardization Provided by IHS under license
2、with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/111111100
3、1, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO/IEC 14776-351 First edition 2007-01 Information technology Small computer system interface-3 (SCSI-3) Part 351: Medium changer commands (SMC)
4、PRICE CODE Copyright 2007 ISO/IEC, Geneva All rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commis
5、sion, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch T For price, see current catalogue Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IH
6、S Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 14776-351 ISO/IEC:2007(E) CONTENTS FOREWORD.5 INTRODUCTION.6 1 Scope.8 2 Normative References 8 3 Definitions, symbols and abbreviations8 3.1 Defi
7、nitions .8 3.2 Symbols and abbreviations 13 3.3 Keywords.13 3.4 Conventions 14 4 Overview 14 5 Medium changer models .16 5.1 Independent medium changer16 5.2 Attached medium changer .16 5.3 Medium changer elements .16 5.4 Medium transport element17 5.5 Storage element 18 5.6 Import/export element18
8、5.7 Data transfer element 18 5.8 Element status maintenance requirements.18 5.9 Volume tag information19 5.10 Primary and alternate volume tag information.19 5.11 Volume tag information format .19 6 Commands for medium changer logical units 21 6.1 Commands for independent medium changers.21 6.2 Comm
9、ands for attached medium changers.22 6.3 EXCHANGE MEDIUM command22 6.4 INITIALIZE ELEMENT STATUS command .24 6.5 MOVE MEDIUM command.25 6.6 POSITION TO ELEMENT command.26 6.7 READ ELEMENT STATUS command.27 6.7.0 General .27 6.7.1 Element status data .28 6.7.2 Element status page 29 6.7.3 Medium tran
10、sport element descriptor30 6.7.4 Storage element descriptor 32 6.7.5 Import/export element descriptor33 6.7.6 Data transfer element descriptor 35 6.7.7 Identification descriptor36 6.8 RELEASE ELEMENT (6) command37 6.8.0 General .37 6.8.1 Logical unit release (mandatory) 37 6.8.2 Element release (opt
11、ional) .37 6.9 RELEASE ELEMENT (10) command37 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -
12、,-,- 14776-351 ISO/IEC:2007(E) 3 6.9.1 RELEASE ELEMENT (10) overview37 6.9.2 Third-party release (Mandatory) .38 6.10 REQUEST VOLUME ELEMENT ADDRESS command39 6.11 RESERVE ELEMENT (6) command .41 6.11.0 General .41 6.11.1 Logical unit reservation (mandatory).42 6.11.2 Element reservation (optional)4
13、2 6.12 RESERVE ELEMENT (10) command .43 6.12.0 General .43 6.12.1 Third-party reservation (mandatory) .44 6.12.2 Superseding reservations.44 6.13 SEND VOLUME TAG command .45 7 Parameters.48 7.0 General .48 7.1 Diagnostic parameters.48 7.2 Log parameters .48 7.3 Mode parameters.48 7.3.0 General .48 7
14、.3.1 Device capabilities page.49 7.3.2 Element address assignment page.51 7.3.3 Transport geometry parameters page.52 Bibliography54 Figure 1 General structure of SCSI standards.6 Figure 2 Example independent medium changer device15 Copyright International Organization for Standardization Provided b
15、y IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 14776-351 ISO/IEC:2007(E) Table 1 Volume tag information format .20 Table 2 Commands for independent mediu
16、m changers .21 Table 3 Commands for attached medium changers.22 Table 4 EXCHANGE MEDIUM command 23 Table 5 INITIALIZE ELEMENT STATUS command .24 Table 6 MOVE MEDIUM command .25 Table 7 POSITION TO ELEMENT command.26 Table 8 READ ELEMENT STATUS command .27 Table 9 Element type code .28 Table 10 Eleme
17、nt status data .28 Table 11 Element status page 29 Table 12 Medium transport element descriptor30 Table 13 Storage element descriptor 32 Table 14 Import/export element descriptor33 Table 15 Data transfer element descriptor 35 Table 16 Identification descriptor fields.36 Table 17 RELEASE ELEMENT (6)
18、command 37 Table 18 RELEASE ELEMENT (10) command 38 Table 19 RELEASE ELEMENT (10) parameter list 39 Table 20 REQUEST VOLUME ELEMENT ADDRESS command 40 Table 21 Volume element address header 41 Table 22 RESERVE ELEMENT (6) command41 Table 23 Data format of element list descriptors .43 Table 24 RESERV
19、E ELEMENT (10) command43 Table 25 RESERVE ELEMENT (10) ID and elements parameter list45 Table 26 SEND VOLUME TAG command .45 Table 27 Send action codes .46 Table 28 Send volume tag parameters format.47 Table 29 Diagnostic page codes.48 Table 30 Log page codes .48 Table 31 Mode page codes.49 Table 32
20、 Device capabilities page.50 Table 33 Element address assignment page.51 Table 34 Transport geometry parameters page.52 Table 35 Transport geometry descriptor53 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Win
21、g, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- 14776-351 ISO/IEC:2007(E) 5 INFORMATION TECHNOLOGY SMALL COMPUTER SYSTEM INTERFACE-3 (SCSI-3) Part 351: Medium changer commands (SMC) FOREWORD 1) ISO (International Organization fo
22、r Standardization) and IEC (International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards. Their preparation is entrusted to technical committees; any ISO
23、and IEC member body interested in the subject dealt with may participate in this preparatory work. International governmental and non-governmental organizations liaising with ISO and IEC also participate in this preparation. 2) In the field of information technology, ISO and IEC have established a j
24、oint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. 3) The formal decisions or
25、agreements of IEC and ISO on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC and ISO member bodies. 4) IEC, ISO and ISO/IEC Publications have the form of recomme
26、ndations for international use and are accepted by IEC and ISO member bodies in that sense. While all reasonable efforts are made to ensure that the technical content of IEC, ISO and ISO/IEC Publications is accurate, IEC or ISO cannot be held responsible for the way in which they are used or for any
27、 misinterpretation by any end user. 5) In order to promote international uniformity, IEC and ISO member bodies undertake to apply IEC, ISO and ISO/IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any ISO/IEC Publication
28、 and the corresponding national or regional publication should be clearly indicated in the latter. 6) ISO and IEC provide no marking procedure to indicate their approval and cannot be rendered responsible for any equipment declared to be in conformity with an ISO/IEC Publication. 7) All users should
29、 ensure that they have the latest edition of this publication. 8) No liability shall attach to IEC or ISO or its directors, employees, servants or agents including individual experts and members of their technical committees and IEC or ISO member bodies for any personal injury, property damage or ot
30、her damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication of, use of, or reliance upon, this ISO/IEC publication or any other IEC, ISO or ISO/IEC publications. 9) Attention is drawn to the normative references cit
31、ed in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 10) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO and IEC shall not be held responsib
32、le for identifying any or all such patent rights. International Standard ISO/IEC 14776-351 was prepared by subcommittee 25: Interconnection of information technology equipment, of ISO/IEC joint technical committee 1: Information technology. The list of all parts of ISO/IEC 14776 series, under the ge
33、neral title Information technology Small computer system interface (SCSI), can be found on the IEC web site. This International Standard has been approved by vote of the member bodies, and the voting results may be obtained from the address given on the title page. This publication has been drafted
34、in accordance with the ISO/IEC Directives, Part 2. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from
35、IHS -,-,- 6 14776-351 ISO/IEC:2007(E) INTRODUCTION This International Standard defines the SCSI commands and model for independent medium changer devices and attached medium changer functions integrated into other SCSI devices. The SCSI-3 Medium Changer Commands (SMC) standard specifies the commands
36、 and external behavioural characteristics of a device server that declares itself a medium changer in the device type field of the INQUIRY command response data. This standard also specifies the behaviour of the attached medium changer commands available when the medium changer MCHNGR bit is set to
37、one in INQUIRY command response data. SMC is specified independent of any service delivery subsystem used to carry commands, command parameter data, command response data and status. The SMC standard conforms to the requirements specified in the SCSI-3 Architecture Model (SAM) standard. This Interna
38、tional Standard forms part of the series of SCSI standards as shown in Figure 1. Common Access Method Device-Type Specific Command Sets Shared Command Set Transport Protocols Physical Interconnects Architecture Model Figure 1 General structure of SCSI standards Figure 1 shows the general structure o
39、f SCSI-3 standards. The figure is not intended to imply a relationship such as a hierarchy, protocol stack or system architecture. At the time this standard was generated examples of the SCSI-3 general structure included: Physical Interconnects Fibre Channel Physical and Signalling Interface SCSI-3
40、Parallel Interface SCSI-3 Fast-20 Parallel Interface SCSI Parallel Interface 2 ISO/IEC 14776-112 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/08/2007 07:18:00 MDTNo reproduction
41、 or networking permitted without license from IHS -,-,- 14776-351 ISO/IEC:2007(E) 7 Transport Protocols SCSI-3 Interlocked Protocol ISO/IEC 14776-211 SCSI-3 Fibre Channel Protocol Version 3 ISO/IEC 14776-223 SCSI Serial Bus Protocol 2 ISO/IEC 14776-232 Shared Command Set SCSI-3 Primary Commands-2 IS
42、O/IEC 14776-452 Device-Type Specific Command Sets SCSI-3 Block Commands ISO/IEC 14776-321 SCSI-3 Enclosure Services ISO/IEC 14776-371 SCSI-3 Stream Commands ISO/IEC 14776-331 SCSI-3 Medium Changer Commands (this standard) SCSI-3 Controller Commands ISO/IEC 14776-341 SCSI-3 Controller Commands 2 ISO/
43、IEC 14776-342 SCSI-3 Multimedia Command Set SCSI-3 Multimedia Command Set 2 ISO/IEC 14776-362 Architecture Model SCSI-3 Architecture Model ISO/IEC 14776-411 Common Access Method SCSI Common Access Method ISO/IEC 9316-2 NOTE See bibliography for full references and availability of the documents. The
44、term SCSI is used wherever it is not necessary to distinguish between the versions of SCSI. The Small Computer System Interface2 ISO/IEC 9316:1995 is referred to herein as SCSI2. The term SCSI-3 in this standard refers to versions of SCSI defined since SCSI2. The SCSI-3 Medium Changer Command Set (S
45、MC) standard is divided into seven clauses and a bibliography, as follows. Clause 1 Scope Clause 2 enumerates the normative references that apply to this standard. Clause 3 describes definitions, symbols, abbreviations and conventions used in this standard. Clause 4 is an overview of this standard.
46、Clause 5 describes the model for this device class. Clause 6 describes the commands and responses. Clause 7 describes the parameters. Bibliography. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not
47、 for Resale, 05/08/2007 07:18:00 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 14776-351 ISO/IEC:2007(E) INFORMATION TECHNOLOGY SMALL COMPUTER SYSTEM INTERFACE-3 (SCSI-3) Part 351: Medium changer commands (SMC) 1 Scope This part of ISO/IEC 14776 defines the command set
48、extensions for operation of SCSI medium changer devices and command set extensions that allow medium changer functions in other types of SCSI devices. This SCSI-3 Medium Changer Commands standard permits an application client to communicate with a logical unit that declares itself to be a medium changer device in the DEVICE TYPE