CAN CSA-ISO IEC 22050-2004 Information technology - Data interchange on 12 7 mm 384-track magnetic tape cartridges - Ultrium-1 format.pdf

1、 Reference numberISO/IEC 22050:2002(E)ISO/IEC 2002Information technology Data interchangeon 12,7 mm, 384-track magnetic tape cartridges Ultrium-1 format Technologies de linformation change de donnes sur cartouches bande magntique 12,7 mm, 384 pistes Format Ultrium-1 National Standard of CanadaCAN/CS

2、A-ISO/IEC 22050:04(ISO/IEC 22050:2002)International Standard ISO/IEC 22050:2002 (first edition, 2002-10-01) has been adopted without modification(IDT) as CSA Standard CAN/CSA-ISO/IEC 22050:04, which has been approved as a National Standard of Canadaby the Standards Council of Canada.ISBN 1-55397-269

3、-4 January 2004The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a federation of independent, autonomousthe Standar

4、ds Council of Canada to the National organizations working towards the furtherStandards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national interest.engaged in standards development and certifi

5、cation The principal objects of the Council are to foster activities. and promote voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufacturers, health, safety, and welfare of the public

6、, assisting consumers, retailers, unions and professional and protecting the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the field of standards.and

7、 often adopted by municipal, provincial, and A National Standard of Canada is a standard whichfederal governments in their regulations, particularly in has been approved by the Standards Council ofthe fields of health, safety, building and construction, Canada and one which reflects a reasonableand

8、the environment. agreement among the views of a number of capableIndividuals, companies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance ofdevelopment by volunteering their time and sk

9、ills to representation of producers, users, consumers, andCSA Committee work and supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The more to the subject in hand. It normally is a standardthan 7000 committee volunteers and th

10、e 2000 which is capable of making a significant and timelysustaining memberships together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National Standard ofSustaining memberships represent a major source of Canada in

11、dicates that a standard conforms to theincome for CSAs standards development activities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in support of and as an extension to its technical c

12、ontent of the standard; this remains thestandards development activities. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Those who have a need t

13、o apply standards arethat bear the CSA Mark. encouraged to use National Standards of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to periodic review; therefore, users are cautioned c

14、entres across Canada and inspection and testing to obtain the latest edition from the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsibility for approving National Standards meet its corporate mission: C

15、SA is an independent of Canada rests with theservice organization whose mission is to provide an Standards Council of Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the use of Ottawa, Ontario, K1P 6N7standards, certif

16、ication and related services to meet Canadanational and international needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application of this Standard is stated in its Scope,

17、 it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 22050:04 384-track magnetic tape cartridges Ultrium-1 formatInformation technology Data interchange on

18、12,7 mm,January 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 22050:04Information technology Datainterchange on 12,7 mm, 384-trackmagnetic tape cartridges Ultrium-1 formatCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards de

19、velopment. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor

20、 of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the S

21、trategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on request from the CSA Project Manager.) From time to time,ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approvaland pu

22、blication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standard has been formally approved, without modification, bythe Technical Committee and has been approved as a National Standard of Canada by the StandardsCouncil

23、of Canada.January 2004 Canadian Standards Association 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Where the words “this International Standard” appear in the

24、text, they should be interpreted as “this National Standard of Canada”. Inquiries regarding this National Standard of Canada should be addressed to Canadian Standards Association 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044www.csa.caReference numberI

25、SO/IEC 22050:2002(E)ISO/IEC 2002INTERNATIONAL STANDARD ISO/IEC22050First edition2002-10-01Information technology Data interchangeon 12,7 mm, 384-track magnetic tape cartridges Ultrium-1 format Technologies de linformation change de donnes sur cartouches bande magntique 12,7 mm, 384 pistes Format Ult

26、rium-1 ISO/IEC 22050:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editin

27、g. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be fo

28、und in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at th

29、e address given below. ISO/IEC 2002 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 either ISO at the address bel

30、ow or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch ii ISO/IEC 2002 All rights reservedISO/IEC 22050:2002(E) ISO/IEC 2002 All rights reserved iiiContents Sect

31、ion 1 General 1 Scope 1 2 Conformance 1 2.1 Magnetic tape cartridge 1 2.2 Generating system 1 2.3 Receiving system 1 3 Normative references 1 4 Terms and definitions 2 4.1 Access Point 2 4.2 algorithm 2 4.3 algorithmically processed data 2 4.4 a.c. erase 2 4.5 Average Signal Amplitude 2 4.6 back sur

32、face 2 4.7 Beginning of Tape (BOT) 2 4.8 Beginning of Wrap (BOW) 2 4.9 bit 2 4.10 bit cell 2 4.11 Broad Band Signal-to-Noise Ratio (BBSNR) 2 4.12 byte 2 4.13 cartridge 2 4.14 Channel bit 3 4.15 Codeword 3 4.16 Codeword Pair 3 4.17 Codeword Quad (CQ) 3 4.18 CQ Set 3 4.19 cyclic redundancy check (CRC)

33、 character 3 4.20 Data Set 3 4.21 Data Set Information Table (DSIT) 3 4.22 End of Data (EOD) 3 4.23 End of Tape (EOT) 3 4.24 End of Wrap (EOW) 3 4.25 Error Correcting Code (ECC) 3 4.26 File Mark 3 4.27 flux transition position 3 4.28 flux transition spacing 3 4.29 forward tape motion 3 4.30 header 3

34、 4.31 Housekeeping Data Set 3 4.32 logical forword 4 4.34 Logical Point 4 4.35 magnetic tape 4 4.36 Master Standard Reference Tape (MSRT) 4 4.37 LTO Cartridge Memory (LTO CM) 4 4.38 Optimum Recording Current 4 ISO/IEC 22050:2002(E) iv ISO/IEC 2002 All rights reserved4.39 physical end of tape 4 4.40

35、physical forward 4 4.41 physical reverse 4 4.42 pre-record condition 4 4.43 processed data 4 4.44 Processed Record 4 4.45 Processing (Compression) 4 4.46 Protected Record 4 4.47 Record 5 4.48 recorded element 5 4.50 Reprocessing (Decompression) 5 4.51 reverse tape motion 5 4.52 run length limited en

36、coding (RLL) 5 4.53 Secondary Standard Reference Tape (SSRT) 5 4.54 servo acquisition region 5 4.55 Standard Reference Amplitude (SRA) 4.56 Symbol 5 4.57 Synchronised Codeword Quad (SCQ) 4.58 Test Recording Density (TRD) 5 4.59 wrap 5 4.60 write equalisation 5 4.61 (1,7) RLL code 5 5 Conventions and

37、 notations 6 5.1 Representation of numbers 6 5.2 Dimensions 6 5.3 Names 6 5.4 Alphanumeric string encoding 6 6 Acronyms 6 7 Environment and safety 6 7.1 Cartridge and tape testing environment 7 7.2 Cartridge operating environment 7 7.3 Cartridge storage environment 7 7.4 Tape tension 7 7.5 Safety 7

38、7.6 Flammability 7 7.7 Transportation 7 Section 2 - Requirements for the Cartridge 8 8 Dimensional and Mechanical Characteristics of the Cartridge 8 8.1 Elements of the cartridge 8 8.2 Reference Planes of the case 8 8.3 Dimensions of the case 8 8.3.1 Overall dimension 8 8.3.2 Reference points for re

39、ference planes 9 8.3.3 Positioning notches 10 8.3.4 Handling notches 10 8.3.5 Mis-insertion protection 11 8.3.6 Stacking features 11 8.3.7 Label area of the rear side 12 8.3.8 Central window 12 8.3.9 Sliding door 12 8.3.10 Case opening 12 8.4 Write-inhibit mechanism 13 ISO/IEC 22050:2002(E) ISO/IEC

40、2002 All rights reserved v8.5 Flexibility of the case 13 8.5.1 Requirements 13 8.5.2 Procedure 13 8.6 Tape reel 13 8.6.1 Locking mechanism 13 8.6.2 Axis of rotation of the reel 14 8.6.3 Reel flanges 14 8.6.4 Metallic insert 14 8.6.5 Toothed rim 15 8.6.6 Hub of the reel 15 8.6.7 Relative positions of

41、 hub and case 15 8.6.8 Characteristics of the toothed rim 15 8.7 Magnetic tape 16 8.7.1 Tape wind 16 8.7.2 Wind tension 16 8.7.3 Circumference of the tape reel 16 8.7.4 Moment of inertia 16 8.8 Leader pin assembly 17 8.8.1 Leader pin assembly dimensions 17 8.8.2 Leader tape attachment to leader pin

42、assembly 17 8.8.3 Latching the leader pin assembly in the case 8.8.4 Mechanism and tape exit keepout area 18 8.9 LTO CM 18 8.10 Areas reserved for cartridge presence sensing 19 8.11 Handling grips and insertion indicator 8.11.1 Side grips 19 8.11.2 Insertion indicator 19 8.11.3 Top grip 19 8.11.4 Bo

43、ttom grip 20 8.12 Pad Printing Areas 20 8.13 Opacity 20 Section 3 - Requirements for the Unrecorded Tape 35 9 Mechanical, physical and dimensional characteristics of the tape 35 9.1 Materials 35 9.2 Tape length 35 9.2.1 Length of magnetic tape 35 9.2.2 Length of leader tape 35 9.2.3 Length of splici

44、ng tape 35 9.3 Tape Width 35 9.3.1 Width of magnetic tape 35 9.3.2 Width of leader tape 35 9.3.3 Width of splicing tape 35 9.3.4 Procedure 36 9.4 Tape Thickness 36 9.4.1 Procedure 36 9.5 Longitudinal curvature 36 9.5.1 Procedure 36 ISO/IEC 22050:2002(E) vi ISO/IEC 2002 All rights reserved9.6 Edge Qu

45、ality 36 9.6.1 Edge deviation 36 9.7 Tape flatness 37 9.7.1 Cupping 37 9.7.2 Curl/Twist 38 9.8 Coating adhesion 38 9.8.1 Procedure 38 9.9 Layer-to-layer adhesion 38 9.9.1 Requirement 38 9.9.2 Procedure 39 9.10 Coefficient of friction 40 9.10.1 Requirement 40 9.10.2 Procedure for the measurement of t

46、he dynamic friction between the magnetic surface and the back surface 40 9.10.3 Procedure for the measurement of the dynamic friction between the back surface and SS-310 stainless steel 40 9.10.4 Procedure for the measurement of the dynamic friction between the magnetic surface and AlO2/TiC ceramic

47、40 9.11 Surface quality 41 9.11.1 Surface roughness 41 9.12 Abrasivity 41 9.13 Tensile strength 41 9.13.1 Breaking strength 41 9.13.2 Offset yield strength 41 9.14 Longitudinal compliance 41 9.14.1 Procedure 42 9.15 Residual elongation 42 9.15.1 Requirement 42 9.15.2 Procedure 42 9.16 Flexural rigid

48、ity 42 9.16.1 Requirement 42 9.16.2 Procedure 42 9.17 Transverse dimensional stability 42 9.18 Electrical resistance of coated surfaces 42 9.18.1 Requirement 42 9.18.2 Procedure 42 10 Magnetic Recording Characteristics 43 10.1 General 43 10.2 Test conditions 43 10.3 Optimum Recording Current 44 10.4

49、 Signal amplitude 44 10.5 Resolution 44 10.6 Overwrite 44 10.6.1 Requirement 44 ISO/IEC 22050:2002(E) ISO/IEC 2002 All rights reserved vii10.7 Ease of erasure 44 10.8 Broad Band Signal-to-Noise Ratio 44 10.8.1 Requirement 44 10.9 Tape quality 44 10.9.1 Missing pulses 44 10.9.2 Missing pulse zone 45 Section 4 - Requirements for an Interchanged Tape 45 11 Method of recording servo bands 45 11.1 General 45 11.2 Servo bands 45 11.2.1 Servo stripes 46 11.2.2 Servo bursts 46 11.2.3 Servo frames 46 11.2.4 Servo