ISO INTERNATIONAL STANDARD 18943 First edition 2014-12-01 Imaging materials Magnetic hard drives used for image storage Care and handling Materiaux d'imagerie - Disques durs magnétiques utiliseés pour le stockage d'images - Soins et manipulation Reference number ISO 18943:2014(E) LSO International Organization for Standardization andardization5956617 IS02014 vided by IHS under IS0 18943:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 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. ISO copyrightoffice Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +4122 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland Prganizationfor Standardization I by IHS unde Not for Resale, 2015/3/20 06:47:30 etworking permitted without license from IHS IS0 18943:2014(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Terms and definitions 3 HDD components 3.1 Disks. ..4 3.2 Motor and spindle 3.3 Read/Write head .4 3.4 Servohead 3.5 Controlelectronics. .4 3.6 Interconnections .4 4 Possible physical configurations 4.1 Disk arrays. ..5 4.2 Single HDD ..5 5 Access and usage options ..5 5.1 Online HDDs (connected and powered) .5 5.2 Online but inactive HDDs (connected, not spinning) .5 5.3 Off-line (not connected, not spinning) 6 Reliability .5 7 Dataquality ..6 8 Interoperability/Compatibility .6 9 Migration .6 .6 10 Environmental factors 10.1 Temperature and humidity 10.2 Condensation .7 10.3 Acclimatisation ..7 10.4 Magnetic fields. ..7 11 Possible failure mechanisms .7 11.1 Physical shock. .7 11.2 Plugging/unplugging connectors 1 11.3 Head-to-disk stiction .8 11.4 Heat. .8 11.5 Humidity ..8 11.6 Air quality and particulates. 11.7 Magnetic degradation ..8 11.8 Run time ..8 11.9 Shelf life ..8 12 Obsolescence issues .8 12.1 Software. 12.2 Hardware ..9 13 Transportation and shipping .9 13.1 Freighting. 13.2 Shipping containers. .9 13.3 Time out of storage .9 iii see=Zhejiang Institute of Standardization 5956617 ted withoutlicensefrom IHS Not for Resale, 2015/3/20 06:47:30