ISO/IEC 24775-1:2014
(Main)Information technology — Storage management — Part 1: Overview
Information technology — Storage management — Part 1: Overview
ISO/IEC 24775-1:2014(E) defines an interface for the secure, extensible, and interoperable management of a distributed and heterogeneous storage system. This interface uses an object-oriented, XML-based, messaging-based protocol designed to support the specific requirements of managing devices and subsystems in this storage environment. Using this protocol, this part of ISO/IEC 24775 describes the information available to a WBEM Client from an Information Technology - Storage Management compliant CIM WBEM Server. This International Standard, together with ISO/IEC 24775-2 to ISO/IEC 24775-8, replaces ISO/IEC 24775, second edition, published in 2011, and constitutes a technical revision. The significant technical changes with respect to the previous edition are listed in the INTRODUCTION.
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ISO/IEC 24775-1
Edition 1.0 2014-10
INTERNATIONAL
STANDARD
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Information technology – Storage management –
Part 1: Overview
ISO/IEC 24775-1:2014-10(en)
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ISO/IEC 24775-1
Edition 1.0 2014-10
INTERNATIONAL
STANDARD
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inside
Information technology – Storage management –
Part 1: Overview
INTERNATIONAL
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CONTENTS
FOREWORD .6
INTRODUCTION .8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, symbols, abbreviations, and conventions . 10
4 Typographical conventions . 11
4.1 Maturity model . 11
4.2 Experimental maturity level . 11
4.3 Implemented maturity level . 11
4.4 Stable maturity level . 12
4.5 Finalized maturity level . 12
4.6 Deprecated material . 12
5 Storage management introduction . 14
5.1 Preamble .14
5.2 Business rationale . 14
5.3 Interface definition . 14
5.4 Technology trends . 16
5.5 Management environment . 18
5.6 Architectural objectives . 18
6 Storage management overview . 20
6.1 Base capabilities . 20
6.2 Object oriented classes . 20
6.3 Messaging-based interface . 22
7 Functionality matrix . 24
7.1 Overview .24
7.2 Multi-level model of networked storage management functionality . 24
7.3 FCAPS .25
7.4 Management functionality within each level of the model . 25
7.4.1 (Level 1) Device level functionality . 25
7.4.2 (Level 2) Connectivity level functionality . 25
7.4.3 (Level 3) Block level functionality . 25
7.4.4 (Level 4) File/Record level functionality . 25
7.4.5 (Level 5) Application level functionality . 26
7.5 Referring to levels and capabilities in the multi-level model . 26
7.6 Functionality descriptions in SMI-S profiles . 26
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7.7 Capabilities of this version . 26
7.7.1 Device Level . 26
7.7.2 Connectivity Level . 27
7.7.3 Block Level . 27
7.7.4 File/Record Level . 28
7.7.5 Application Level . 28
8 Operational environment . 29
8.1 General .29
8.2 Using this standard . 30
8.3 Language bindings . 30
Bibliography . 32
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Figure 1 – Experimental maturity level tag . 11
Figure 2 – Implemented maturity level tag . 12
Figure 3 – Stable maturity level tag . 12
Figure 4 – Deprecated tag . 13
Figure 5 – Interface functions. 15
Figure 6 – Large SAN topology . 17
Figure 7 – Example Client Server Distribution in a SAN . 18
Figure 8 – Object model/server relationship. 21
Figure 9 – Canonical inheritance . 22
Figure 10 – Sample CIM-XML message. 23
Figure 11 – Operational environment . 30
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Table 1 – Functionality matrix . 24
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INFORMATION TECHNOLOGY –
STORAGE MANAGEMENT –
Part 1: Overview
FOREWORD
1) ISO (the International Organization 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
respective 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 information technology, ISO and IEC have
established a joint technical committee, ISO/IEC JTC 1.
2) The formal decisions or agreements of IEC and ISO on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested IEC National Committees and ISO member bodies.
3) IEC, ISO and ISO/IEC Publications have the form of recommendations for international use and are accepted by
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8) Attention is drawn to the normative references cited in this publication. Use of the referenced publications is indispensable
for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this ISO/IEC publication may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 24775-1 was prepared by subcommittee 25: Interconnection of
information technology equipment, of ISO/IEC joint technical committee 1: Information
technology.
This International Standard, together with ISO/IEC 24775-2 to ISO/IEC 24775-8, replaces ISO/
IEC 24775, second edition, published in 2011, and constitutes a technical revision.
The significant technical changes with respect to the previous edition are listed in the
INTRODUCTION.
The list of all currently available parts of the ISO/IEC 24775 series, under the general title
Information technology – Storage management, can be found on the IEC web site.
This International Standard is to be used in conjunction with all other parts of this series of
standards.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this publication using a
colour printer.
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INTRODUCTION
The Overview part of the Storage Management International Standard contains informative
clauses that provide an overview of how SMI-S works. It is a useful base for understanding the
details of the standard. While the normative information of the ISO/IEC 24775 series of
standards is contained in other parts, ISO/IEC 24775-1 provides high-level introductory
material on key concepts.
ISO/IEC 24775 is subdivided into the following parts:
• Information technology – Storage management – Part 1: Overview
• Information technology – Storage management – Part 2: Common architecture
• Information technology – Storage management – Part 3: Common profiles
• Information technology – Storage management – Part 4: Block devices
• Information technology – Storage management – Part 5: Filesystems
• Information technology – Storage management – Part 6: Fabric
• Information technology – Storage management – Part 7: Host elements
• Information technology – Storage management – Part 8: Media libraries
The significant changes with respect to the second edition of ISO/IEC 24775 are listed below.
• Improved organization. The International Standard has been reorganized into eight parts
to provide more information more easily. The parts are:
• Part 1 Overview: The overview book provides a high level overview of the ISO/IEC
24775 series of standards.
• Part 2 Common Architecture: This part covers general information about the interface,
such as security and protocols.
• Part 3 Common Profiles: This part covers component profiles that extend profiles in
other books, such as target ports and job control.
• Part 4 Block Devices: This part covers storage profiles that support various forms of
disk storage.
• Part 5 Filesystems: This part covers profiles that support filesystems, such as NAS
(Network Attached Storage).
• Part 6 Fabric: This part covers profiles that deal with interconnection of host servers
and storage devices, such as switches.
• Part 7 Host Elements: This part covers profiles for storage software on host servers,
such as disk partitioning and Host Hardware RAID controllers.
• Part 8 Media Libraries: This part covers profiles that deal with removable media such as
tape libraries.
• Maturity identification. As material is added to the standard it goes through various
stages of maturity. The initial stage is Experimental, which is material that has not yet been
implemented and is subject to change. The other stages indicate the degree of
implementations. The stages are:
• Experimental: Full design review, no commercial implementations.
• Implemented: Initial implementations available, may be removed at minor revision.
• Stable: Three or more vendors have implemented the identified material, backward
compatibility assured, removed only at major revision.
• Finalized: Relies solely on Finalized content, deprecated only at major revision.
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• Deprecated: Obsolete material, may be removed in future revisions.
For a more detailed explanation of each maturity level and its typographical indication, see
Clause 4 Typographical conventions.
• Expanded scope. The range of SAN components modeled by the profiles defined in the
parts has been greatly expanded.
• New profiles include:
• Part 3 Common Profiles: Serial Attached SCSI (SAS) Target Port, Serial ATA (SATA)
Target Ports, SB Target Port, SAS Initiator Ports, ATA Initiator Ports, FC-SB-x
Initiator Ports, FCoE Initiator Ports, Power Supply, Fan, Sensors, Base Server,
Media Access Device, Storage Enclosure, Software Inventory, Profile Registration,
Proxy Server System Management, Operational Power.
• Part 4 Block Devices: Block Storage Views, CKD Block Services, Erasure, Storage
Server Asymmetry, Volume Composition, Storage Element Protection, Replication
Services, Pools from Volumes, Group Masking and Mapping, Thin Provisioning.
• Part 5 Filesystems: File Export, File Server Manipulation, File Storage, Filesystem,
Filesystem Copy Services, Filesystem Performance, Filesystem Quotas, NAS
Network Port, Host Filesystem, Filesystem Remote Copy Services.
• Part 6 Fabric: Fibre Channel Security, Fabric Views, Virtual Fabrics, Switch
Partitioning, SAS Expander, N Port Virtualizer, Inter Fabric Routing.
• Part 7 Host Elements: Storage HBA, Host Hardware RAID Controller.
• Part 8 Media Libraries: Partitioned Tape Library, Virtual Tape Library, Virtual Tape
Library Copy and Library Views.
• The following experimental profiles were removed from the International Standard:
• Part 3 Common Profiles: Security, 3rd Party Authentication, Authorization,
Credential Management, Identity Management, Security Role Based Access Control
and Security Resource Ownership.
• Part 4 Block Devices: Pool Management Policy.
• The following profiles are deprecated:
• Part 3 Common Profiles: Cascading (replaced by direct use of cascading classes).
• Part 4 Block Devices: Volume Management (not replaced).
• Part 6 Fabric: Router (not replaced).
• Part 7 Host Elements: FC HBA (replaced by Storage HBA), SB Multipath
Management (not replaced).
• Part 8 Media Libraries: InterLibraryPort Connection (not replaced).
• In addition, many of the existing profiles have been enhanced.
This International Standard was prepared by the SNIA (Storage Networking Industry
1
Association) . The standard is often referred to as SMI-S (Storage Management Initiative
Specification).
1. Storage Networking Industry Association, 425 Market Street, Suite 1020, San Francisco, CA 94105, U.S.A.,
http://www.snia.org
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INFORMATION TECHNOLOGY –
STORAGE MANAGEMENT –
Part 1: Overview
1 Scope
This part of ISO/IEC 24775 defines an interface for the secure, extensible, and interoperable
management of a distributed and heterogeneous storage system. This interface uses an
object-oriented, XML-based, messaging-based protocol designed to support the specific
requirements of managing devices and subsystems in this storage environment. Using this
protocol, this part of ISO/IEC 24775 describes the information available to a WBEM Client from
an Information Technology – Storage Management compliant CIM WBEM Server.
2 Normative references
The following documents, in whole or in part, are normatively referenced in the document and
are indispensible for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document, including any amendments,
applies.
ISO/IEC 24775-2, Information technology – Storage management – Part 2: Common
architecture
ISO/IEC 24775-3, Information technology – Storage management – Part 3: Common profile
3 Terms, definitions, symbols, abbreviations, and conventions
For the purposes of this document, the terms, definitions, symbols, abbreviations, and
conventions given in ISO/IEC 24775-2:2014 apply.
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4 Typographical conventions
4.1 Maturity model
In addition to informative and normative content, this International Standard includes guidance
about the maturity of emerging material that has completed a rigorous design review but has
limited implementation in commercial products. This material is clearly delineated as described
in Clause 4. The typographical convention is intended to provide a sense of the maturity of the
affected material, without altering its normative content. By recognizing the relative maturity of
different sections of the International Standard, an implementer should be able to make more
informed decisions about the adoption and deployment of different portions of the International
Standard in a commercial product.
This International Standard has been structured to convey both the formal requirements and
assumptions of the Information Technology – Storage Management API and its emerging
implementation and deployment lifecycle. Over time, the intent is that all content in the
International Standard will represent a mature and stable design, be verified by extensive
implementation experience, assure consistent support for backward compatibility, and rely
solely on content material that has reached a similar level of maturity. Unless explicitly labeled
with one of the subordinate maturity levels defined for this International Standard, content is
assumed to satisfy these requirements and is referred to as “Finalized”. Since much of the
evolving International Standard content in any given release will not have matured to that level,
this International Standard defines three subordinate levels of implementation maturity that
identify important aspects of the content’s increasing maturity and stability. Each subordinate
maturity level is defined by its level of implementation experience, its stability and its reliance
on other emerging standards. Each subordinate maturity level is identified by a unique
typographical tagging convention that clearly distinguishes content at one maturity model from
content at another level.
4.2 Experimental maturity level
No material is included in this International Standard unless its initial architecture has been
completed and reviewed. Some content included in this International Standard has complete
and reviewed design, but lacks implementation experience and the maturity gained through
implementation experience. This content is included in order to gain wider review and to gain
implementation experience. This material is referred to as “Experimental”. It is presented here
as an aid to implementers who are interested in likely future developments within the SMI
International Standards. The contents of an Experimental profile may change as
implementation experience is gained. There is a high likelihood that the changed content will
be included in an upcoming revision of the International Standard. Experimental material can
advance to a higher maturity level as soon as implementations are available. Figure 1 is a
sample of the typographical convention for Experimental content.
EXPERIMENTAL
Experimental content appears here.
EXPERIMENTAL
Figure 1 – Experimental maturity level tag
4.3 Implemented maturity level
Profiles for which initial implementations have been completed are classified as
“Implemented”. This indicates that at least two different vendors have implemented the profile,
including at least one provider implementation. At this maturity level, the underlying
architecture and modeling are stable, and changes in future revisions will be limited to the
correction of deficiencies identified through additional implementation experience. Should the
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material become obsolete in the future, it shall be deprecated in a minor revision of the
International Standard prior to its removal from subsequent releases. Figure 2 is a sample of
the typographical convention for Implemented content.
IMPLEMENTED
Implemented content appears here.
IMPLEMENTED
Figure 2 – Implemented maturity level tag
4.4 Stable maturity level
Once content at the Implemented maturity level has garnered additional implementation
experience, it can be tagged at the Stable maturity level. Material at this maturity level has
been implemented by three different vendors, including both a provider and a client. Should
material that has reached this maturity level become obsolete, it may only be deprecated as
part of a minor revision to the International Standard. Material at this maturity level that has
been deprecated may only be removed from the International Standard as part of a major
revision. A profile that has reached this maturity level is guaranteed to preserve backward
compatibility from one minor International Standard revision to the next. As a result, Profiles at
or above the Stable maturity level shall not rely on any content that is Experimental. Figure 3 is
a sample of the typographical convention for Implemented content.
STABLE
Stable content appears here.
STABLE
Figure 3 – Stable maturity level tag
4.5 Finalized maturity level
Content that has reached the highest maturity level is referred to as “Finalized.” In addition to
satisfying the requirements for the Stable maturity level, content at the Finalized maturity level
shall solely depend upon or refine material that has also reached the Finalized level. If
International Standard content depends upon material that is not under the control of the SNIA,
and therefore not subject to its maturity level definitions, then the external content is evaluated
by the SNIA to assure that it has achieved a comparable level of completion, stability, and
implementation experience. Should material that has reached this maturity level become
obsolete, it may only be deprecated as part of a major revision to the International Standard. A
profile that has reached this maturity level is guaranteed to preserve backward compatibility
from one minor International Standard revision to the next. Over time, it is hoped that all
International Standard content will attain this maturity level. Accordingly, there is no special
typographical convention, as there is with the other, subordinate maturity levels. Unless
content in the International Standard is marked with one of the typographical conventions
defined for the subordinate maturity levels, it should be assumed to have reached the Finalized
maturity level.
4.6 Deprecated material
Non-Experimental material can be deprecated in a subsequent revision of the International
Standard. Sections identified as “Deprecated” contain material that is obsolete and not
recommended for use in new development efforts. Existing and new implementations may still
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use this material, but shall move to the newer approach as soon as possible. The maturity level
of the material being deprecated determines how long it will continue to appear in the
International Standard. Implemented content shall be retained at least until the next revision of
the specialization, while Stable and Finalized material shall be retained until the next major
revision of the International Standard. Providers shall implement the deprecated elements as
long as it appears in the International Standard in order to achieve backward compati
...
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