ISO-12142-2001.pdf
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1、 Reference number ISO 12142:2001(E) ISO 2001 INTERNATIONAL STANDARD ISO 12142 First edition 2001-11-15 Electronic imaging Media error monitoring and reporting techniques for verification of stored data on optical digital data disks Imagerie lectronique Mthodes de surveillance et dtablissement de com
2、pte rendu derreurs pour la vrification des donnes stockes sur des disques optiques numriques Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 21:57:58 MDTNo reproduction or
3、networking permitted without license from IHS -,-,- ISO 12142:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and instal
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6、ease inform the Central Secretariat at the address given below. ISO 2001 All rights reserved. Unless otherwise specified, 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 writi
7、ng from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2001 All rights reserved Copyright Inte
8、rnational Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 21:57:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12142:2001(E) ISO 2001 All rights reserved iii Cont
9、ents Page Forewordv Introductionvi 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Requirements.3 5 Conventions.4 6 Capabilities of media error monitoring techniques .4 7 High-level techniques5 7.1 Introduction5 7.2 Functional commands.6 7.2.1 Generic command description.6 7.2.2 Define
10、 Media Error Recovery Procedures (DMERP)6 7.2.3 Read Defect Data List (RDDL) 7 7.2.4 Read Media Error Data (RDMED) .7 7.2.5 Read Log Data (RLD).8 7.2.6 Set Media Error Levels (SMEL) 9 7.2.7 Set Verify Media Error Levels (SVMEL).9 8 SCSI-2 level techniques10 8.1 Introduction10 8.2 The FORMAT UNIT com
11、mand 11 8.2.1 Introduction11 8.2.2 Requirements for media error monitoring and reporting11 8.3 The LOG SELECT command 12 8.3.1 Introduction12 8.3.2 Requirements for media error monitoring and reporting12 8.4 The LOG SENSE command 13 8.4.1 Introduction13 8.4.2 Requirements for media error monitoring
12、and reporting13 8.5 The MODE SELECT command .13 8.5.1 Introduction13 8.5.2 Requirements for media error monitoring and reporting13 8.6 The MODE SENSE command .14 8.6.1 Introduction14 8.6.2 Requirements for media error monitoring and reporting14 8.7 The READ DEFECT DATA command.14 8.7.1 Introduction1
13、4 8.7.2 Requirements for media error monitoring and reporting14 8.8 The READ LONG command16 8.8.1 Introduction16 8.8.2 Requirements for media error monitoring and reporting16 8.9 The REQUEST SENSE command.17 8.9.1 Introduction17 8.9.2 Requirements for media error monitoring and reporting17 8.10 The
14、VERIFY command 19 8.10.1 Introduction19 8.10.2 Requirements for media error monitoring and reporting19 8.11 The WRITE AND VERIFY command.19 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Res
15、ale, 04/04/2007 21:57:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12142:2001(E) iv ISO 2001 All rights reserved 8.11.1 Introduction19 8.11.2 Requirements for media error monitoring and reporting19 8.12 Parameters for optical disk devices 20 8.12.1 Media error mon
16、itoring and reporting associated parameters.20 8.12.2 Mode parameters.20 8.12.3 Log parameters22 Annex A (informative) Recommendations on Verify Media Error Levels for early warning and Media Error Levels for sector retirement32 A.1 Introduction32 A.2 Sector retirement guidelines according to ISO/IE
17、C 1008932 A.3 Sector retirement guidelines according to ISO/IEC 1340332 Annex B (informative) Guidelines for use of media error monitoring and reporting techniques for the verification of stored data on optical digital data disks 33 B.1 Introduction33 B.2 Media error monitoring tools provided by thi
18、s International Standard .34 B.2.1 Introduction34 B.2.2 Interpreting media error reports.35 B.3 Deciding what to test.36 B.3.1 Introduction36 B.3.2 Sampling methods.37 B.3.3 Estimation from sampling methods.38 B.3.4 Using baseline media error parameters40 B.4 Analysing media error reports provided b
19、y optical disk subsystems or devices complying to this International Standard, or similar media error reports 40 B.4.1 Introduction40 B.4.2 Automating media testing.40 B.4.3 Media error testing and log maintenance .40 B.4.4 Sample graphs of media error reports specified in this International Standar
20、d 41 B.5 Using error distributions and statistical models to evaluate data integrity56 B.5.1 Introduction56 B.5.2 Error distributions and burst lengths56 B.5.3 The uniform random error model.58 B.5.4 Gilbert models of burst length distributions 59 Annex C (informative) Modified Gilbert Model .61 Ann
21、ex D (informative) Uniform, random error distributions.63 D.1 General description.63 D.2 Sector distribution of bytes in error 63 D.3 Maximum number of bytes in error per codeword per sector 63 D.4 Distribution of the number of bytes in error per codeword per sector64 D.4.1 General64 D.4.2 Maximum n
22、umber of bytes in error per codeword per sector, first approach64 D.4.3 Maximum number of bytes in error per codeword per sector, second approach 64 Bibliography66 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=
23、Wing, Bernie Not for Resale, 04/04/2007 21:57:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12142:2001(E) ISO 2001 All rights reserved v Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO me
24、mber bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governme
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