Information technology — Cloud Data Management Interface (CDMI)

ISO/IEC 17826:2012 specifies the interface to access cloud storage and to manage the data stored therein. It is applicable to developers who are implementing or using cloud storage.

Technologies de l'information — Interface de management des données du nuage informatique (CDMI)

General Information

Status
Withdrawn
Publication Date
14-Nov-2012
Withdrawal Date
14-Nov-2012
Current Stage
9599 - Withdrawal of International Standard
Start Date
11-Jul-2016
Completion Date
11-Jul-2016
Ref Project

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ISO/IEC 17826:2012 - Information technology -- Cloud Data Management Interface (CDMI)
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INTERNATIONAL ISO/IEC
STANDARD 17826
First edition
2012-11-15
Information technology — Cloud Data
Management Interface (CDMI)
Technologies de l'information — Interface de management des
données du nuage informatique (CDMI)
Reference number
ISO/IEC 17826:2012(E)
ISO/IEC 2012
---------------------- Page: 1 ----------------------
ISO/IEC 17826:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2012

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 below or

ISO's 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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO/IEC 2012 – All rights reserved
---------------------- Page: 2 ----------------------
International lSO/IEC
Standard
Information Technology -
Cloud Data Management Interface (CDMI™)
Reference Number
ISO/IEC 17826:2012(E)
November 15, 2012
---------------------- Page: 3 ----------------------
ISO/IEC 17826:2012(E)
PATENT STATEMENT

CAUTION: The developers of this international standard have requested that holders of patents that may

be required for the implementation of the standard, disclose such patents to the publisher. However,

neither the developers nor the publisher have undertaken a patent search in order to identify which, if any,

patents may apply to this international standard. As of the date of publication of this international standard,

following calls for the identification of patents that may be required for the implementation of the standard,

no such claims have been made. No further patent search is conducted by the developer or the publisher

in respect to any standard it processes. No representation is made or implied that licenses are not required

to avoid infringement in the use of this international standard.
Copyright Notice

This ISO document is copyright-protected by ISO. While the reproduction of working drafts or committee

drafts in any form for use by participants in the ISO standards development process is permitted without

prior permission from ISO, neither this document nor any extract from it may be reproduced, stored or

transmitted in any form for any other purpose without prior written permission from ISO.

Requests for permission to reproduce this document for the purpose of selling it should be addressed as

shown below or to ISO's member body in the country of the requester:
The Storage Networking Industry Association
425 Market Street, Suite 1020
San Francisco, CA 94105

Reproduction for sales purposes may be subject to royalty payments or a licensing agreement.

Violators may be prosecuted.
CDMI is a trademark of the Storage Networking Industry Association.
2 ©ISO/IEC 2012 – All rights reserved
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ISO/IEC 17826:2012(E)
Contents

Foreword.............................................................................................................................................15

Introduction ........................................................................................................................................16

1 Scope ................................................................................................................................................18

2 Normative References .....................................................................................................................18

3 Terms ................................................................................................................................................20

4 Conventions .....................................................................................................................................23

4.1 Interface Format ........................................................................................................................23

4.2 Typographical Conventions .......................................................................................................23

4.3 Request and Response Body Requirements ............................................................................23

4.4 Key Word Requirements ...........................................................................................................24

5 Overview of Cloud Storage .............................................................................................................25

5.1 Introduction ................................................................................................................................25

5.2 What is Cloud Storage? ............................................................................................................25

5.3 Data Storage as a Service ........................................................................................................25

5.4 Data Management for Cloud Storage ........................................................................................27

5.5 Data and Container Management .............................................................................................27

5.6 Reference Model for Cloud Storage Interfaces .........................................................................28

5.7 Cloud Data Management Interface ...........................................................................................29

5.8 Object Model for CDMI ..............................................................................................................30

5.9 CDMI Metadata .........................................................................................................................31

5.10 Object ID ...................................................................................................................................32

5.11 CDMI Object ID Format .............................................................................................................32

5.12 Security .....................................................................................................................................33

5.13 Required HTTP Support ............................................................................................................34

5.13.1 RFC 2616 Support Requirements ................................................................................34

5.13.2 Content-Type Negotiation ............................................................................................34

5.13.3 Range Support .............................................................................................................34

5.13.4 URI Escaping ...............................................................................................................34

5.13.5 Use of URIs ..................................................................................................................35

5.13.6 Reserved Characters ...................................................................................................35

5.14 Time Representations ...............................................................................................................35

5.15 Backwards Compatibility ...........................................................................................................36

5.15.1 Value Transfer Encoding ..............................................................................................36

5.15.2 Container Export Capabilities .......................................................................................36

6 Common Operations .......................................................................................................................37

6.1 Overview ...................................................................................................................................37

6.2 Discover the Capabilities of a Cloud Storage Provider .............................................................37

6.3 Create a New Container ............................................................................................................38

6.4 Create a Data Object in a Container .........................................................................................38

6.5 List the Contents of a Container ................................................................................................39

6.6 Read the Contents of a Data Object .........................................................................................39

6.7 Read Only the Value of a Data Object ......................................................................................40

6.8 Delete a Data Object .................................................................................................................40

7 Interface Standard ...........................................................................................................................41

7.1 HTTP Status Codes ..................................................................................................................41

7.2 Object References .....................................................................................................................41

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ISO/IEC 17826:2012(E)

8 Data Object Resource Operations .................................................................................................43

8.1 Overview ...................................................................................................................................43

8.1.1 Data Object Metadata ..................................................................................................44

8.1.2 Data Object Consistency ..............................................................................................44

8.1.3 Data Object Representations .......................................................................................44

8.2 Create a Data Object Using CDMI Content Type ......................................................................44

8.2.1 Synopsis .......................................................................................................................44

8.2.2 Delayed Completion of Create .....................................................................................45

8.2.3 Capabilities ...................................................................................................................45

8.2.4 Request Headers .........................................................................................................46

8.2.5 Request Message Body ...............................................................................................46

8.2.6 Response Headers .......................................................................................................48

8.2.7 Response Message Body ............................................................................................49

8.2.8 Response Status ..........................................................................................................50

8.2.9 Examples ......................................................................................................................50

8.3 Create a Data Object using a Non-CDMI Content Type ...........................................................51

8.3.1 Synopsis .......................................................................................................................51

8.3.2 Capability ......................................................................................................................51

8.3.3 Request Headers .........................................................................................................52

8.3.4 Request Message Body ...............................................................................................52

8.3.5 Response Headers .......................................................................................................52

8.3.6 Response Message Body ............................................................................................52

8.3.7 Response Status ..........................................................................................................52

8.3.8 Example .......................................................................................................................53

8.4 Read a Data Object using CDMI Content Type ........................................................................53

8.4.1 Synopsis .......................................................................................................................53

8.4.2 Capabilities ...................................................................................................................53

8.4.3 Request Headers .........................................................................................................54

8.4.4 Request Message Body ...............................................................................................54

8.4.5 Response Headers .......................................................................................................54

8.4.6 Response Message Body ............................................................................................54

8.4.7 Response Status ..........................................................................................................57

8.4.8 Examples ......................................................................................................................57

8.5 Read a Data Object using a Non-CDMI Content Type ..............................................................59

8.5.1 Synopsis .......................................................................................................................59

8.5.2 Capabilities ...................................................................................................................59

8.5.3 Request Header ...........................................................................................................59

8.5.4 Request Message Body ...............................................................................................59

8.5.5 Response Headers .......................................................................................................59

8.5.6 Response Message Body ............................................................................................60

8.5.7 Response Status ..........................................................................................................60

8.5.8 Examples ......................................................................................................................60

8.6 Update a Data Object using CDMI Content Type .....................................................................61

8.6.1 Synopsis .......................................................................................................................61

8.6.2 Capabilities ...................................................................................................................61

8.6.3 Request Headers .........................................................................................................62

8.6.4 Request Message Body ...............................................................................................62

8.6.5 Response Header ........................................................................................................64

8.6.6 Response Message Body ............................................................................................64

8.6.7 Response Status ..........................................................................................................64

8.6.8 Examples ......................................................................................................................65

8.7 Update a Data Object using a Non-CDMI Content Type ...........................................................66

8.7.1 Synopsis .......................................................................................................................66

8.7.2 Capabilities ...................................................................................................................67

8.7.3 Request Headers .........................................................................................................67

8.7.4 Request Message Body ...............................................................................................67

8.7.5 Response Header ........................................................................................................67

8.7.6 Response Message Body ............................................................................................68

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ISO/IEC 17826:2012(E)

8.7.7 Response Status ..........................................................................................................68

8.7.8 Examples ......................................................................................................................68

8.8 Delete a Data Object using CDMI Content Type .......................................................................69

8.8.1 Synopsis .......................................................................................................................69

8.8.2 Capability ......................................................................................................................69

8.8.3 Request Header ...........................................................................................................69

8.8.4 Request Message Body ...............................................................................................69

8.8.5 Response Headers .......................................................................................................69

8.8.6 Response Message Body ............................................................................................69

8.8.7 Response Status ..........................................................................................................70

8.8.8 Example .......................................................................................................................70

8.9 Delete a Data Object using a Non-CDMI Content Type ............................................................70

8.9.1 Synopsis .......................................................................................................................70

8.9.2 Capability ......................................................................................................................70

8.9.3 Request Headers .........................................................................................................70

8.9.4 Request Message Body ...............................................................................................71

8.9.5 Response Headers .......................................................................................................71

8.9.6 Response Message Body ............................................................................................71

8.9.7 Response Status ..........................................................................................................71

8.9.8 Example .......................................................................................................................71

9 Container Object Resource Operations ........................................................................................72

9.1 Overview ...................................................................................................................................72

9.1.1 Container Metadata ......................................................................................................73

9.1.2 Reserved Container Names .........................................................................................73

9.1.3 Container Object Addressing .......................................................................................73

9.1.4 Container Object Representations ...............................................................................73

9.2 Create a Container Object using CDMI Content Type ..............................................................74

9.2.1 Synopsis .......................................................................................................................74

9.2.2 Delayed Completion of Create .....................................................................................74

9.2.3 Capabilities ...................................................................................................................74

9.2.4 Request Headers .........................................................................................................75

9.2.5 Request Message Body ...............................................................................................75

9.2.6 Response Headers .......................................................................................................77

9.2.7 Response Message Body ............................................................................................77

9.2.8 Response Status ..........................................................................................................78

9.2.9 Example .......................................................................................................................79

9.3 Create a Container Object using a Non-CDMI Content Type ...................................................80

9.3.1 Synopsis .......................................................................................................................80

9.3.2 Capability ......................................................................................................................80

9.3.3 Request Headers .........................................................................................................80

9.3.4 Request Message Body ...............................................................................................80

9.3.5 Response Headers .......................................................................................................80

9.3.6 Response Message Body ............................................................................................80

9.3.7 Response Status ..........................................................................................................81

9.3.8 Example .......................................................................................................................81

9.4 Read a Container Object using CDMI Content Type ................................................................81

9.4.1 Synopsis .......................................................................................................................81

9.4.2 Capabilities ...................................................................................................................81

9.4.3 Request Headers .........................................................................................................82

9.4.4 Request Message Body ...............................................................................................82

9.4.5 Response Headers .......................................................................................................82

9.4.6 Response Message Body ............................................................................................83

9.4.7 Response Status ..........................................................................................................84

9.4.8 Examples ......................................................................................................................85

9.5 Update a Container Object using CDMI Content Type .............................................................86

9.5.1 Synopsis .......................................................................................................................86

9.5.2 Delayed Completion of Snapshot .................................................................................87

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ISO/IEC 17826:2012(E)

9.5.3 Capabilities ...................................................................................................................87

9.5.4 Request Headers .........................................................................................................87

9.5.5 Request Message Body ...............................................................................................88

9.5.6 Response Header ........................................................................................................89

9.5.7 Response Message Body ............................................................................................89

9.5.8 Response Status ..........................................................................................................89

9.5.9 Examples ......................................................................................................................90

9.6 Delete a Container Object using CDMI Content Type ...............................................................91

9.6.1 Synopsis .......................................................................................................................91

9.6.2 Capability ......................................................................................................................91

9.6.3 Request Header ...........................................................................................................91

9.6.4 Request Message Body ...............................................................................................91

9.6.5 Response Headers .......................................................................................................91

9.6.6 Response Message Body ............................................................................................91

9.6.7 Response Status ..........................................................................................................92

9.6.8 Example .......................................................................................................................92

9.7 Delete a Container Object using a Non-CDMI Content Type ....................................................92

9.7.1 Synopsis .......................................................................................................................92

9.7.2 Capability ......................................................................................................................92

9.7.3 Request Headers .........................................................................................................92

9.7.4 Request Message Body ...............................................................................................93

9.7.5 Response Headers .......................................................................................................93

9.7.6 Response Message Body ............................................................................................93

9.7.7 Response Status ..........................................................................................................93

9.7.8 Example .......................................................................................................................93

9.8 Create (POST) a New Data Object using CDMI Content Type .................................................93

9.8.1 Synopsis .......................................................................................................................93

9.8.2 Delayed Completion of Create .....................................................................................94

9.8.3 Capabilities ...................................................................................................................94

9.8.4 Request Headers .........................................................................................................95

9.8.5 Request Message Body ...............................................................................................96

9.8.6 Response Headers .......................................................................................................98

9.8.7 Response Message Body ............................................................................................98

9.8.8 Response Status ..........................................................................................................99

9.8.9 Examples ....................................................................................................................100

9.9 Create (POST) a New Data Object using a Non-CDMI Content Type ....................................101

9.9.1 Synopsis .....................................................................................................................101

9.9.2 Capability ....................................................................................................................101

9.9.3 Request Header .........................................................................................................101

9.9.4 Request Message Body .............................................................................................101

9.9.5 Response Header ......................................................................................................102

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