ISO IEC 15307-1997 Information technology - Data interchange on 12 7 mm 128-track magnetic tape cartridges - DLT 4 format《信息技术 在12 7mm宽、128道盒式磁带上的数据交换 DLT4格式》.pdf
《ISO IEC 15307-1997 Information technology - Data interchange on 12 7 mm 128-track magnetic tape cartridges - DLT 4 format《信息技术 在12 7mm宽、128道盒式磁带上的数据交换 DLT4格式》.pdf》由会员分享,可在线阅读,更多相关《ISO IEC 15307-1997 Information technology - Data interchange on 12 7 mm 128-track magnetic tape cartridges - DLT 4 format《信息技术 在12 7mm宽、128道盒式磁带上的数据交换 DLT4格式》.pdf(63页珍藏版)》请在麦多课文档分享上搜索。
1、INTERNATIONAL STANDARD ISOAEC 15307 First edition 1997-l 2-01 Information technology - Data interchange on 12,7 mm 128track magnetic tape cartridges - DLT 4 format Technologies de /information - khange de donnees sur cat-touches de bande magrkfique de 12,7 mm, 728 pistes - format DLT 4 Reference num
2、ber ISO/IEC 15307:1997(E) ISO/IEC 15307: 1997 (E) Contents Page 1 1 Section 1 - General 1 Scope 2 Conformance 2.1 Magnetic tape cartridges 2.2 Generating systems 2.3 Receiving systems 3 Normative references 4 Definitions 4.1 Average Signal Amplitude 4.2 azimuth 4.3 back surface 4.4 Beginning-Of-Tape
3、 marker (BOT) 4.5 byte 4.4 cartridge 4.7 Cyclic Redundancy Check (CRC) character 4.8 Early Warning (EW) 4.9 Error-Detecting Code (EDC) 4.10 End-Of-Tape marker (EOT) 4.11 Entity 4.12 Error-Correcting Code (ECC) 4.13 flux transition position 4.14 flux transition spacing 4.15 Logical Block 4.16 logical
4、 track 4.17 magnetic tape 4.18 Master Standard Reference Tape 4.19 object 4.20 page 4.21 physical block 4.22 physical recording density 4.23 physical track 4.24 Record 4.25 Reference Edge 4.26 Reference Field 4.27 Secondary Standard Reference Tape 4.28 Standard Reference Amplitude (SRA) 4.29 Standar
5、d Reference Current 4.30 Test Recording Current 4.31 Typical Field OlSO/lEC 1997 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 mechanrcal, including photocopying and microfilm, without permission i
6、n writing from the publisher ISO/IEC Copyright Office . Case Postale 56 . CH-1211 Geneve 20 Switzerland Printed in Switzerland ii OISOAEC ISOLIEC 15307:1997(E) 5 Conventions and notations 5.1 Representation of numbers 5.2 Dimensions 5.3 Names 5.4 Acronyms 6 Environment and safety 6.1 Cartridge and t
7、ape testing environment 6.2 Cartridge operating environment 6.3 Cartridge storage environment 6.4 Safety 6.4.1 Safeness 6.4.2 Flammability 6.5 Transportation Section 2 - Requirements for the unrecorded tape 7 Mechanical and electrical requirements 7.1 Material 7.2 Tape length 7.3 Width 7.4 Total thi
8、ckness 7.5 Discontinuity 7.6 Longitudinal curvature 7.6.1 Requirement 7.6.2 Procedure 7.7 Out-of-Plane distortions 7.8 Cupping 7.9 Roughness of the coating surfaces 7.9.1 Roughness of the back coating surface 7.9.2 Roughness of the magnetic coating surface 7.10 Coating adhesion 7.11 Layer-to-layer a
9、dhesion 7.11.1 Requirements 7.11.2 Procedure 7.12 Modulus of elasticity 7.12.1 Requirement 7.12.2 Procedure 7.13 Flexural rigidity 7.13.1 Requirement 7.13.2 Procedure 7.14 Tensile yield force 7.14.1 Procedure 7.15 Electrical resistance 7.15.1 Requirement 7.15.2 Procedure 7.16 Inhibitor tape 7.17 Abr
10、asivity 3 3 3 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 7 7 7 7 7 8 8 8 8 8 8 9 9 III ISO/IEC 15307:1997(E) OISO/IEC 7.17.1 Requirement 7.17.2 Procedure 7.18 Light transmittance of the tape and the leader 7.19 Coefficient of dynamic friction 7.19.1 Requirements 7.19.2 Procedure for t
11、he measurement of the friction between the magnetic surface and the back surface 7.19.3 Procedure for the measurement of the friction between the magnetic surface or the back surface and calcium 9 9 9 9 10 10 titanate ceramic 10 8 Magnetic recording characteristics 8.1 Typical Field 8.2 Signal ampli
12、tude 8.3 Resolution 8.4 Overwrite 10 11 11 11 11 8.4.1 Requirement 8.5 Peak shift 11 11 8.5.1 Requirement 8.5.2 Procedure 11 11 9 Tape quality 12 9.1 Missing pulses 9.1.1 Requirement 9.2 Missing pulse zone 9.2.1 Requirement 9.3 Tape durability Section 3 - Mechanical specifications of the tape cartri
13、dge 10 General 12 12 12 12 12 10.1 Bottom side and right side 10.2 Back side and left side 10.3 Tape reel 10.4 Tape leader 10.5 Front side 10.6 Operation of the cartridge 10.7 Tape winding 10.8 Moment of inertia 10.9 Material 12 12 13 14 14 15 16 17 17 17 18 Section 4 - Requirements for an interchan
14、ged tape 27 11 Method of recording 27 11.1 Physical recording density 27 11.2 Channel bit cell length 27 11.2.1 Average Channel bit cell length 27 11.2.2 Long-term average Channel bit cell length 27 11.2.3 Short-term average Channel bit cell length 27 11.3 Flux transition spacing 27 11.4 Read signal
15、 amplitude 27 11.5 Azimuth 28 11.6 Channel skew 28 12 Tape format 28 iv OISO/IEC ISO/IEC 15307:1997(E) 12.1 Reference Edge 12.2 Direction of recording 12.3 Tape layout 12.4 Calibration and Directory Area 12.4.1 Scratch Area 12.4.2 Guard Area G 1 12.4.3 Calibration Tracks Area 12.4.4 Guard Area G2 12
16、.4.5 Directory Area 12.4.6 Guard Area G3 12.5 Data Area 12.5.1 Physical tracks 12.5.2 Width of the physical tracks 12.5.3 Logical tracks 12.5.4 Locations of the physical tracks 12.5.5 Layout of tracks in the Data Area 13 Data format 13.1 Data Bytes 13.2 Logical Blocks 13.3 Data Blocks 13.4 Types of
17、Logical Blocks 13.5 Entities 13.6 Logical Block format 13.6.1 Preamble 13.6.2 Sync 30 31 31 31 31 32 32 33 33 33 33 33 33 13.6.3 Data Field 13.6.4 EDC 13.6.5 Control Field 1 (CFI ) 13.6.6 Control Field 2 (CF2) 13.6.7 CRC 13.6.8 Postamble 14 Use of Logical Blocks 14.1 Data Blocks 14.2 Filler Blocks 1
18、4.3 End of Track Blocks (EOTR) 14.4 End of Data Blocks (EOD) 14.5 ECC Blocks 15 Format of Entities 16 Error handling Annexes 34 34 34 36 36 37 38 38 38 38 38 39 39 39 39 39 A - Measurement of light transmittance 40 B - Generation of the Data Block CRCS 43 C - ECC generation 44 D - Generation of page
19、 CRCs 47 E - Format of MAP entries 48 F - Format of Control Field 1 49 G - Format of Control Field 2 50 H - Recommendations for transportation 51 28 28 28 28 29 29 29 30 30 30 V ISO/IEC 15307:1997(E) J - Inhibitor tape K - Recommendations on tape durability L - Handling guidelines QISO/IEC 52 53 54
20、vi OISO/IEC ISO/IEC 15307:1997(E) Foreword IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of Inte
21、rnational Standards through technical committees established by the respective organization to deal with particular fields of technical activity. IS0 and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaiso
22、n with IS0 and IEC, also take part in the work. In the field of information technology, IS0 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 Inte
23、rnational Standard requires approval by at least 75% of the national bodies casting a vote. International Standard ISO/IEC 15307 was prepared by ECMA (as ECMA-231) and was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel
24、 with its approval by national bodies of IS0 and IEC. Annexes A to G form an integral part of this International Standard. Annexes H to L are for information only. vii ISO/IEC 15307:1997(E) OISO/IEC Introduction This International Standard constitutes a further development of the family of DLT-forma
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