ISO/TR TECHNICAL REPORT 17797 First edition 2014-10-01 Electronic archiving Selection of digital storage media for long term preservation Archivage électronique - Sélection d'un support de stockage numérique pour une preservation a long terme Reference number IS0/TR 17797:2014(E) LSO IS02014 ted without license from IHS Not for Resale IS0/TR 17797:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2014 All rights reserved. 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 the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +4122 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0/TR 17797:2014(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Methodology ..1 5 Choice of storage system/media ..2 6 Hard disk drive ..3 6.1 General .3 6.2 Reasons for failure .3 6.3 Quality indicators. 6.4 Technical arrangements. 6.5 Controltools .8 Magnetic tape. .9 7.1 General 7.2 Reasons for failure 9 7.3 Quality indicators. 10 7.4 Technical arrangements .10 7.5 Controltools .11 8 Solid state drive (SDD), flash memory .11 8.1 General .11 8.2 Reasons for failure .12 8.3 Quality indicators .12 8.4 Technical arrangements. .12 8.5 Controltools ..13 6 Optical discs (recordable and rewritable) .14 9.1 General. .14 9.2 Reasons for failure .14 9.3 Quality indicators .14 9.4 Technical arrangements .15 9.5 Controltools ..16 10 General requirements for long-term preservation ..17 10.1 General. ..17 10.2 Media traceability. .17 10.3 Optimal storage identification .17 10.4 Duplication of storage ..17 10.5 Media stocktaking. .17 10.6 Periodic inspection. .18 11 Selection of media .18 11.1 General .18 11.2 Volume of information .18 11.3 Sizeof individualitems .18 11.4 Retention period of the information .19 11.5 Capacity of the media. ..19 11.6 Technology already in use within the organization ..19 11.7 Retrieval and accessibility requirements. .19 11.8 Exposure to threats to media. 20 11.9 Costs .20 11.10 Records management, regulatory, and discovery. .20 11.11 Technology refresh cycle/software migration .20 iii ed without license from IHS Not for Resale