1、Information technology Digitally recorded media for information interchange and storage Test method for the estimation of lifetime of optical disks for long-term data storageTechnologies de linformation Supports pour lchange dinformations et le stockage enregistrs numriquement Mthode dessai pour les
2、timation de la dure de vie de disques optiques pour le stockage long terme ISO/IEC 2015INTERNATIONAL STANDARDISO/IEC16963Second edition2015-03-15Reference numberISO/IEC 16963:2015(E)ISO/IEC 16963:2015(E)ii ISO/IEC 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015All rights reserved.
3、Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at t
4、he address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandISO/IEC 16963:2015(E) ISO/IEC 2015 All rights reserved iiiContents PageFo
5、reword ivIntroduction v1 Scope . 12 Conformance . 13 Normative references 24 Terms and definitions . 35 Conventions and notations 45.1 Representation of numbers . 45.2 Variables . 45.3 Names . 46 List of acronyms 47 Measurements . 57.1 Summary 57.2 Test specimen . 77.3 Recording conditions . 87.4 Pl
6、ayback conditions 87.5 Disk testing locations 98 Accelerated stress test 98.1 General . 98.2 Stress conditions . 98.3 Measuring-time intervals 128.4 Design of stress conditions 128.5 Disk orientation 139 Lifetime estimation.139.1 Time-to-failure . 139.2 Accelerated-aging test methods 149.3 Data anal
7、ysis and judgment of effectiveness .149.4 Result of estimated disk life 15Annex A (normative) Outline of Disk-life estimation method and data-analysis steps .16Annex B (normative) Disk-life estimation for Controlled storage-condition (Eyring method) .24Annex C (normative) Disk-life estimation for Ha
8、rsh storage-condition (Arrhenius method) 39Annex D (normative) Alternative non destructive stress condition .44Annex E (informative) Interval estimation for B5Life using maximum likelihood 46Annex F (informative) RSER measurement of BD disks.52Bibliography .53ISO/IEC 16963:2015(E)ForewordISO (the In
9、ternational Organization for Standardization) and IEC (the 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 through technical committees estab
10、lished by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the
11、 field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed
12、for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. I
13、SO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in t
14、his document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers
15、to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 23, Digitally recorded media for information interchange and storage.This second edition cancels and replaces the first edition (ISO/IEC
16、16963:2011), which has been technically revised.iv ISO/IEC 2015 All rights reservedISO/IEC 16963:2015(E)IntroductionMarkets and industry have developed a common understanding that the property referred to as the lifetime of data recorded to optical disks plays an increasingly important role in many
17、applications. Disparate standardized test methodologies exist for Magneto-Optical disks vs recordable compact disks and DVD systems. The first edition of this International Standard provided a common methodology applicable for various purposes that included lifetime testing of then available writabl
18、e CD and DVD optical disks.ISO/IEC JTC 1/SC 23/JWG 1, which is a Joint working group comprising ISO/TC 42, ISO/TC 171/SC 1 and ISO/IEC JTC 1/SC 23, initiated work on this subject and developed initial drafts with assistance from Ecma International TC 31.After the issuance of the first edition of thi
19、s International Standard, ISO/IEC standards for the physical formats of BD Recordable and Rewritable disks were published. Accordingly, ISO/IEC JTC 1/SC 23/JWG 1 started work again to include testing of writable BD optical disks in this second edition of the International Standard. Additional detail
20、s for lifetime estimation are also incorporated. ISO/IEC 2015 All rights reserved vInformation technology Digitally recorded media for information interchange and storage Test method for the estimation of lifetime of optical disks for long-term data storage1 ScopeThis International Standard specifie
21、s an accelerated aging test method for estimating the lifetime of the retrievability of information stored on recordable or rewritable optical disks.The method is based on the theoretical assumption that the lifetime of data recorded on an optical disk has a lognormal distribution.Detailed testing i
22、s specified for the following formats: DVD-R/RW/RAM disks, +R/+RW disks, CD-R/RW disks and BD recordable / rewritable disks. The testing can be applied to additional optical-disk formats with substitution of the appropriate specifications and can also be updated by committee in the future as require
23、d.This International Standard includes: stress conditions Basic and Rigorous stress-conditions for testing and subsequent analysis using both the Eyring and Arrhenius methods; ambient storage conditions in which the lifetime of data stored on optical disk is estimated a Controlled storage-condition,
24、 25 C and 50 % RH, representing full-time air conditioning. The Eyring method is used to estimate the lifetime under this storage condition; a Harsh storage-condition, 30 C and 80 % RH, representing the most severe conditions in which users handle and store optical disks. The Arrhenius method is use
25、d to estimate the lifetime under this storage condition; a description of the evaluation system; procedures for specimen preparation and data acquisition; definitions and methods used in testing specific disk types; analysis of test results to determine the lifetime of stored data; a format for repo
26、rting the estimated lifetime of stored data.The methodology includes only the effects of temperature and relative humidity. It does not attempt to model degradation due to complex failure mechanism kinetics, nor does it test for exposure to light, corrosive gases, contaminants, handling, or variatio
27、ns in playback subsystems. Disks exposed to these additional sources of stress or higher levels of temperature and relative humidity are expected to experience shorter usable lifetimes.2 ConformanceA disk tested by this methodology shall conform to all normative references specific to that disk form
28、at.INTERNATIONAL STANDARD ISO/IEC 16963:2015(E) ISO/IEC 2015 All rights reserved 1ISO/IEC 16963:2015(E)3 Normative referencesThe following referenced documents in whole or in part, are normatively referenced in this document and are indispensable for the application of this document For dated refere
29、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/IEC 10149, Information technology Data interchange on read-only 120 mm optical data disks (CD-ROM)ISO/IEC 16448, Information technology 120 mm DVD Read-o
30、nly diskISO/IEC 16449, Information technology 80 mm DVD Read-only diskISO/IEC 17592, Information technology 120 mm (4,7 Gbytes per side) and 80 mm (1,46 Gbytes per side) DVD rewritable disk (DVD-RAM)ISO/IEC 17342, Information technology 80 mm (1,46 Gbytes per side) and 120 mm (4,70 Gbytes per side)
31、DVD re-recordable disk (DVD-RW)ISO/IEC 23912, Information technology 80 mm (1,46 Gbytes per side) and 120 mm (4,70 Gbytes per side) DVD Recordable Disk (DVD-R)ISO/IEC 12862, Information technology 120 mm (8,54 Gbytes per side) and 80 mm (2,66 Gbytes per side) DVD recordable disk for dual layer (DVD-
32、R for DL)ISO/IEC 13170, Information technology 120 mm (8,54 Gbytes per side) and 80 mm (2,66 Gbytes per side) DVD re-recordable disk for dual layer (DVD-RW for DL)ISO/IEC 25434, Information technology Data interchange on 120 mm and 80 mm optical disk using +R DL format Capacity: 8,55 Gbytes and 2,66
33、 Gbytes per side (recording speed up to 16X)ISO/IEC 17344, Information technology Data interchange on 120 mm and 80 mm optical disk using +R format Capacity: 4,7 Gbytes and 1,46 Gbytes per side (recording speed up to 16X)ISO/IEC 17341, Information technology Data interchange on 120 mm and 80 mm opti
34、cal disk using +RW format Capacity: 4,7 Gbytes and 1,46 Gbytes per side (recording speed up to 4X)ISO/IEC 26925, Information technology Data interchange on 120 mm and 80 mm optical disk using +RW HS format Capacity: 4,7 Gbytes and 1,46 Gbytes per side (recording speed 8X)ISO/IEC 29642, Information t
35、echnology Data interchange on 120 mm and 80 mm optical disk using +RW DL format Capacity: 8,55 Gbytes and 2,66 Gbytes per side (recording speed 2,4X)ISO/IEC 30190, Information technology Digitally recorded media for information interchange and storage 120 mm Single Layer (25,0 Gbytes per disk) and D
36、ual Layer (50,0 Gbytes per disk) BD Recordable diskISO/IEC 30191, Information technology Digitally recorded media for information interchange and storage 120 mm Triple Layer (100,0 Gbytes per disk) and Quadruple Layer (128,0 Gbytes per disk) BD Recordable diskISO/IEC 30192, Information technology Di
37、gitally recorded media for information interchange and storage 120 mm Single Layer (25,0 Gbytes per disk) and Dual Layer (50,0 Gbytes per disk) BD Rewritable diskISO/IEC 30193, Information technology Digitally recorded media for information interchange and storage 120 mm Triple Layer (100,0 Gbytes p
38、er disk) BD Rewritable diskECMA-394, Recordable Compact Disc Systems CD-R Multi-SpeedECMA-395, Recordable Compact Disc Systems CD-RW Ultra-Speed2 ISO/IEC 2015 All rights reservedISO/IEC 16963:2015(E)4 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.4
39、.1Arrhenius methodaccelerated aging model based on the effects of temperature only4.2baselineanalysis of an initial test (e.g. initial data errors) after recording and before exposure to any stress condition, i.e. measurement at stress time t = 0 hours4.3Basic stress-conditionaccelerated-aging condi
40、tions for estimating the lifetime of data stored on optical disks with a reasonable amount of time and labour4.4B5Life5 percentile of the lifetime distribution (i.e. 5 % failure time) or 95 % survival lifetime4.5(B5Life)L95 % lower confidence bound of B5Life4.6B50Life50 percentile of the lifetime di
41、stribution (i.e. 50 % failure time) or 50 % survival lifetime4.7Controlled storage-conditionwell-controlled storage conditions with full-time air conditioning (25 C and 50 % RH) which can extend the lifetime of data stored on optical disks4.8Eyring methodaccelerated-aging model based on the combined
42、 effects of temperature and relative humidity4.9data errormeasured error on a sample disk before error correction is applied4.10Harsh storage-conditionmost-severe conditions in which users handle and store the optical disks (30 C and 80 % RH) under which the lifetime of data stored on optical disks
43、may be reduced4.11incubationprocess of enclosing and maintaining controlled test-sample environments4.12LDC BlockECC Block of BDs using Long-Distance CodeSOURCE: ISO/IEC 30190:2013, 13.6 ISO/IEC 2015 All rights reserved 3ISO/IEC 16963:2015(E)4.13Maximum Data Errormeasured data error anywhere in one
44、of the relevant areas on the diskNote 1 to entry: For BD Recordable SL/DL disks, BD Recordable TL/QL disks, BD Rewritable SL/DL disks, and BD Rewritable TL disks, this is the Maximum RSER; for DVD-R/RW disks and +R/+RW disks, this is the Maximum PI Sum 8; for DVD-RAM disks, this is the Maximum BER a
45、nd for CD-R/RW disks, this is the Maximum C1 Ave 10.4.14retrievabilityability to recover physically-recorded information as recorded4.15Rigorous stress-conditionaccelerated-aging conditions for estimating the lifetime of data stored on optical disks with higher confidence4.16shelf lifemaximum time a
46、n unrecorded disk can be stored under specific conditions and still meet the performance requirements specified4.17shelf timetime spent on the shelf4.18stresstemperature and relative humidity variables to which the sample is exposed during the incubation (4.11) sub-intervals4.19systemcombination of
47、hardware, software, storage medium, and documentation used to record, retrieve, and reproduce information5 Conventions and notations5.1 Representation of numbersA measured value is rounded off to the least significant digit of the corresponding specified value. For instance, it follows that a specif
48、ied value of 1,26 with a positive tolerance of + 0,01 and a negative tolerance of - 0,02 allows a range of measured values from 1,235 to 1,275.5.2 VariablesA variable with “” above the character denotes that its value is obtained by estimation.5.3 NamesThe names of entities having explicitly-defined
49、 meanings for the purpose of this document are capitalized.6 List of acronymsBER Byte Error RateBLER BLock Error Rate4 ISO/IEC 2015 All rights reservedISO/IEC 16963:2015(E)DL Dual LayerECC Error-Correction CodeLDC Long-Distance CodePI Parity (of the) Inner (code)QL Quadruple LayerRH Relative HumidityNOTE The same meaning as “relative humidity” and used for the unit with %.RSER Random Symbol Error RateSER Symbol Error RateSL Single LayerTL Triple Layer7 Measurement
