ISO-14417-1999.pdf
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1、B C Reference number ISO/IEC 14417:1999(E) INTERNATIONAL STANDARD ISO/IEC 14417 First edition 1999-03-15 Information technology Data recording format DD-1 for magnetic tape cassette conforming to ISO/IEC 1016 Technologies de linformation Format denregistrement des donnes DD-1 pour cassette bande mag
2、ntique conforme lISO/CEI 1016 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 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 144
3、17:1999(E) ISO/IEC 1999 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 writing from the publisher. ISO/IEC Copyright Office C
4、ase postale 56 CH-1211 Genve 20 Switzerland Printed in Switzerland ii Contents 1 Scope.1 1.1 Purpose.1 2 Conformance.1 2.1 Magnetic tape cassettes1 2.2 Generating systems1 2.3 Receiving systems1 3 Normative References1 4 Definitions1 4.1 Auxiliary data.1 4.2 Annotation record2 4.3 Annotation tracks.
5、2 4.4 Average Signal Amplitude (ASA).2 4.5 azimuth.2 4.6 block.2 4.7 byte.2 4.8 Codeword Digital Sum (CDS).2 4.9 Data area2 4.10 Data area reference line.2 4.11 Data area reference point.2 4.12 Data field2 4.13 Digital Sum Variation (DSV)2 4.14 Dropout2 4.15 Erase.2 4.16 Erasing field.2 4.17 Equival
6、ent reference edge2 4.18 flux transition spacing3 4.19 Helical (data) record3 4.20 Helical track.3 4.21 Home track ID.3 4.22 Inner code 3 4.23 Leader3 4.24 Logical volume3 4.25 magnetic tape.3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IH
7、S Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISO/IEC 14417:1999(E) iii 4.26 Master Standard Reference Tape.3 4.27 Outer code3 4.28 physical recording density .3 4.29 Postamble.3 4.30 Pr
8、eamble.3 4.31 reference edge3 4.32 reference field.3 4.33 Resolution3 4.34 Secondary Standard Reference Tape.4 4.35 Sector4 4.36 Sector recording tolerance.4 4.37 Standard Reference Amplitude4 4.38 Standard Reference Current.4 4.39 Sync pattern4 4.40 Tape mark4 4.41 Tolerance zones .4 4.42 track4 4.
9、43 track angle4 4.44 Track Set4 4.45 Track Set ID (TSID)4 4.46 Volume set .4 5 Conventions and notations.5 5.1 Representation of numbers.5 5.2 Names.5 5.3 Acronyms.5 6 Environmental and safety6 6.1 Testing environment.6 6.2 Operating environment 6 6.3 Cassette conditioning.6 6.4 Storage environment6
10、 6.5 Safety6 7 Cassette.7 7.1 General description7 7.2 Dimensions.7 7.3 Identification holes.7 8 Tape mechanical and electrical properties.8 8.1 Materials.8 8.2 Tape width and tolerance.8 8.3 Delta width.8 8.4 Reference edge straightness.8 8.5 Tape thickness8 Copyright International Organization for
11、 Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 14417:1999(E) ISO/IEC iv 8.6 Magnetic recording surface coating thickness
12、.8 8.7 Tape length 8 8.8 Discontinuity9 8.9 Longitudinal curvature.9 8.10 Out-of-plane distortions.9 8.11 Leaders, trailers and splices.9 8.12 Tape wind 9 8.13 Tensile yield force .9 8.14 Inhibitor tape9 8.15 Electrical resistance of the magnetic coating and back surface 10 8.16 Layer-to-layer adhes
13、ion.11 8.17 Coating adhesion12 8.18 Residual elongation12 8.19 Tape cupping.12 8.20 Light transmittance of the tape and the leader.13 9 Magnetic properties13 9.1 Magnetic coating13 9.2 Ease of erasure.13 9.3 Average signal amplitude13 9.4 Resolution13 9.5 Typical field.13 9.6 Tape quality.13 10 Form
14、at for helical tracks .14 10.1 General description of the write data path (figure 4) 14 10.2 Formation of a Logical Track Set16 10.3 Data structuring16 10.4 Track types.18 10.5 Subcode generation23 10.6 Information processing24 10.7 Error protection of data25 11 Formation of a sector .32 11.1 Overvi
15、ew32 11.2 Sector details33 11.3 Recording method35 11.4 Record optimization.35 11.5 Helical tracks.35 11.6 Longitudinal tracks38 11.7 Recorded information41 11.8 Write retry sequence44 11.9 Append file operation45 Copyright International Organization for Standardization Provided by IHS under license
16、 with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISO/IEC 14417:1999(E) v Annexes AMeasurement of light transmittance46 BTables.49 CAppend file and file termination.57 D
17、Examples of subcode data fields in sequences of track type63 ERecommendations for transportation65 FError management systems.66 GSecondary reference tape user procedure.74 HExample of data record termination76 IPhysical to logical data structure mapping.77 Bibliography.78 Copyright International Org
18、anization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 14417:1999(E) ISO/IEC vi Foreword ISO (the International Org
19、anization 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 established by the r
20、espective 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 field of infor
21、mation technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national
22、 bodies casting a vote. International Standard ISO/IEC 14417 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 11, Flexible magnetic media for digital data interchange. Annexes A to C form an integral part of this International Standard. Annexes D to I
23、are for information only. 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 02:04:01 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL S
24、TANDARD ISO/IECISO/IEC 14417:1999(E) 1 Information technology - Data recording format DD-1 for magnetic tape cassette conforming to IEC 61016 1Scope This International Standard specifies the media characteristics, the recorded tape format and file structure requirements to enable information interch
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