ANSI-INCITS-408-2005.pdf
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1、American National Standard Developed by for Information Technology SCSI Primary Commands - 3 (SPC-3) ANSI INCITS 408-2005 ANSI INCITS 408-2005 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resa
2、le, 04/29/2007 05:31:28 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 05:31:28 MDTNo reproduction or
3、 networking permitted without license from IHS -,-,- ANSI INCITS 408-2005 American National Standard for Information Technology SCSI Primary Commands - 3 (SPC-3) Secretariat Information Technology Industry Council Approved October 25, 2005 American National Standards Institute, Inc. Abstract This st
4、andard defines the device model for all SCSI devices. This standard defines the SCSI commands that are basic to every device model and the SCSI commands that may apply to any device model. Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/
5、1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 05:31:28 MDTNo reproduction or networking permitted without license from IHS -,-,- Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have bee
6、n met by the standards developer. Consensus is established when, in the judgement of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity.
7、Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from ma
8、nufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have
9、the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This Amer
10、ican National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all stand
11、ards by calling or writing the American National Standards Institute. American National Standard Published by American National Standards Institute, Inc. 25 West 43rd Street, New York, NY 10036 Copyright 2005 by Information Technology Industry Council (ITI) All rights reserved. No part of this publi
12、cation may be reproduced in any form, in 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 America CAUTION: The developers of this standard have requested that holders of patents that may be
13、 re- quired for the implementation of the standard disclose such patents to the publisher. However, nei- ther the developers nor the publisher have undertaken a patent search in order to identify which, if any, patents may apply to this standard. As of the date of publication of this standard, follo
14、wing calls for the identification of patents that may be required for the implementation of the standard, notice of one or more such claims has been received. By publication of this standard, no position is taken with respect to the validity of this claim or of any rights in connection therewith. Th
15、e known patent holder(s) has (have), however, filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to ob- tain such a license. Details may be obtained from the publisher. No further patent search is con
16、- ducted by the developer or publisher in respect to any standard it processes. No representation is made or implied that this is the only license that may be required to avoid infringement in the use of this standard. Copyright American National Standards Institute Provided by IHS under license wit
17、h ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 05:31:28 MDTNo reproduction or networking permitted without license from IHS -,-,- i Contents Page Foreword .xxiv Introduction .xxvi 1Scope. 1 2Normative references. 4 2.1General 4 2.2Approved references 5 2.3
18、References under development. 6 2.4IETF References 6 3Definitions, symbols, abbreviations, and conventions . 8 3.1Definitions 8 3.2Acronyms. 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 N
19、otation 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 for
20、mats 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 4.3.4.7Control . 29 4.4 Data field requirements
21、 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 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=I
22、HS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 05:31:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ii Page 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
23、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 4.5.2.4.3 Actual retry count sense key specific data. 36 4.5.2.4.4 Progress indication sense key specif
24、ic data 36 4.5.2.4.5 Segment pointer sense key specific data 37 4.5.2.5 Field replaceable unit sense data descriptor . 37 4.5.2.6 Vendor specific sense data descriptors. 38 4.5.3 Fixed format sense data 38 4.5.4 Current errors 39 4.5.5 Deferred errors 39 4.5.6 Sense key and sense code definitions 41
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