Information technology — Storage management — Part 7: Host elements

The host-base storage portion of the Storage Management Technical Specification defines management profiles for autonomous, component and abstract profiles for management of host-based storage devices. The autonomous profiles describe the management of a stand-alone host-based storage entity. The component profiles describe management of aspects of host-based storage entities that may be used by other autonomous profiles. Finally, this section describes abstract profiles that may be used as a basis for creating additional Host-based autonomous profiles. This version of the Host-based Storage portion of the Storage Management Technical Specification includes autonomous profiles: "The Host Discovered Resources Profile This profile defines the model for the storage devices presented to an operating system running on a host computer system. In addition, this profile describes the map of storage associated to a host-computer system that a client application can discover. "The Fibre Channel HBA Profile This profile defines the model and functions of a Fibre Channel HBA that exports block storage to a host computer system from a SAN device (Fibre Channel switch, array, tape library, etc.). iSCSI Initiator Profile This profile defines the model and functions necessary to manage an iSCSI initiator. Component profiles used by autonomous profiles to describe aspects of host-based storage elements and services. The component profiles defined in this version of the specification include: Host Hardware RAID Controller Profile This profile defines the model and functions of a host-based RAID controller that exports block storage to a host computer system from locally attached storage devices (internal hard drives, JBODs, etc.) Storage HBA Profile This profile defines the model and functions of a SAS, SATA, SPI, or Fibre Channel HBA that exports storage to a host computer system from a SAN device (Fibre Channel switch, array, tape library, etc.). Disk Partition Profile The Disk Partition profile models partition (or slice) configuration services provided by operating systems on some platforms. SB Multipath Management Profile The SB Multipath Management Profile models paths (connections between host controllers and device ports) for environments supporting the SB (Single Byte) command protocol. SCSI Multipath Management Profile The SCSI Multipath Management profile models paths (connections between host controllers, device ports, and logical units) for environments supporting the SCSI command protocol.

Technologie de l'information — Management du stockage — Partie 7: Titre manque

General Information

Status
Published
Publication Date
06-Apr-2021
Current Stage
9092 - International Standard to be revised
Start Date
27-Jun-2025
Completion Date
28-Jun-2025
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INTERNATIONAL ISO/IEC
STANDARD 24775-7
Second edition
2021-03
Information technology — Storage
management —
Part 7:
Host elements
Reference number
©
ISO/IEC 2021
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved

Foreword
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of document should be noted (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details
of any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC list of patent
declarations received (see http://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT),
see www.iso.org/iso/foreword.html.
This document was prepared by SNIA (as Storage Management Technical Specification, Part 7 Host
Elements, Version 1.8.0, Revision 5) and drafted in accordance with its editorial rules. It was adopted,
under the JTC 1 PAS procedure, by Joint Technical Committee ISO/IEC JTC 1, Information technology.
This second edition cancels and replaces the first edition (ISO/IEC 24775-7:2014), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— USAGE text was revised to address code (now included in the front matter for all SNIA specifications)
— All recipes and their references were deleted.
— Instances of subprofile were changed to profile. In the annex, instances of subprofile were changed
to component profile (TSG meeting voice vote).
— Profile versions and related text were updated. (TSG meeting voice vote).
— Indications have been replaced by DMTF Indications, and all affected clauses updated. (TSG meeting
voice vote).
— Instances of Experimental within profiles already labeled as Experimental were removed to avoid
confusion and redundancy. (Editorial change)
— CIM/XML was changed to CIM-XML (Response to ballot comments).
© ISO/IEC 2021 – All rights reserved iii

— Annex: SMI-S Information Model.
— The CIM schema version was changed to 2.51 for V1.8.0 Rev3.
— Disk Partition Profile
— Added descriptions of the references in CIM_BasedOn (Partition to Extent), CIM_BasedOn
(Partition to Partition), CIM_LogicalDiskBasedOnPartition (LogicalDisk to Partition) and
CIM_SystemDevice (System to LogicalDisk).
— Made CIM_LogicalDiskBasedOnPartition (LogicalDisk to Partition) and CIM_SystemDevice
(System to LogicalDisk) Conditional (rather than Optional), since CIM_LogicalDisk is Optional.
Storage HBA Profile (SMI TWG Reviews).
— Fixed the version numbers on the Related Profiles to match what the profiles claim.
— Added Descriptions to the references in CIM_ProductElementComponent, CIM_Realizes and
CIM_SystemDevice.
— FC HBA Profile
— Removed the profile content and added text re it being Deprecated. (CORE-SMIS-SCR-000).
— Host Discovered Resources Profile
— Promoted the maturity level from DRAFT to EXPERIMENTAL for update to remove SNIA_
classes and use DMTF CIM_ classes.
— Added the related profiles table to the spec.
— Moved NameFormat from LogicalDevice to LogicalDisk to match the mof.
— Moved NameNamespace from LogicalDevice to LogicalDisk to match the mof.
— Added descriptions on the References for CIM_HostedAccessPoint and CIM_SystemDevice.
— Marked the SB Multipath Management Related Profile as Deprecated (SMIS-180-Errata-
SCR00002).
— Host Hardware RAID Controller Profile
— Fixed the version numbers on the Related Profiles to match what the profiles claim.
— Added two ElementSoftwareIdentity associations to cover the 3 SoftwareIdentity classes (one
Mandatory and one Optional).
— Added descriptions on the References for CIM_AssociatedAlarm,
CIM_ProductPhysicalComponent,
CIM_ProtocolControllerForUnit (Extent or MediaAccessDevice), CIM_Realizes (Associates
PhysicalPackage to PortController) and CIM_SAPAvailableForElement.
— Fixed the description of Dependent in CIM_ControlledBy.
— Added Key properties to the CIM_SoftwareIdentity CIM Element tables.
— Changed the version of the profile to 1.7.0.
— iSCSI Initiator
— Removed all occurrences of “(Host Hardware RAID Controller)” (CORE-SMIS-SCR-000).
— Removed MATURITY="Draft" from the Launch In Context supported profile.
— Added Descriptions for References in 2 CIM_BindsTo associations, CIM_ControlledBy, 2
CIM_DeviceSAPImplementations and CIM_ElementSoftwareIdentity.
— Added Descriptions for References in 2 CIM_EndpointOfNetworkPipes,
CIM_NetworkPipeComposition, CIM_ProductPhysicalComponent and CIM_Realizes.
iv © ISO/IEC 2021 – All rights reserved

— Added Descriptions for references in CIM_SAPAvailableForElement.
— Added Keys to CIM_PhysicalPackage.
— Changed the Central Class from PortController to CIM_ComputerSystem (TSG-SMIS-
SCR00333).
— Memory Configuration Profile
— Updated due to class and property name changes in DMTF Multi-type Memory profile (SMIS-
170-Draft-SCR00006).
— Introduced staged request concept.
— Added use cases.
— Addressed comments from internal and partner reviews.
— Changed diagrams approved in Core TWG 3/23/15.
— Changed SystemCreateClassName in class CIM_MemoryConfigurationService to
SystemCreationClassName.
— Changed RemainingCapacity in class CIM_ResourcePool to CurrentlyConsumedResource.
— Changed ChangeableType in class CIM_MemoryAllocationSettingData to ResourceType.
— Fixed the description of Replication in class CIM_MemoryAllocationSettingData.
— Added a description for ChannelCount in class CIM_MemoryAllocationSettingData.
— Persistent Memory Configuration Profile
— Added new material (most of profile content) to manage NVDIMMs (SMIS-170-Draft-
SCR00006).
— Changed diagrams approved in Core TWG 3/23/15- Changed RemainingCapacity in class
CIM_ResourcePool to Reserved.
— Changed SecurityFeatues in class CIM_PersistentMemoryCapabilities to SecurityFeatures.
— Removed ChannelCount in class CIM_PersistentMemoryNamespaceSettingData, since it is not
in the mof and not referenced anywhere in the profile text.
— Added three methods to CIM_PersistentMemoryService to support the profile text.
— Fixed the ManagedElement reference in CIM_ElementConformsToProfile.
— Fixed the references in CIM_SystemDevice.
— Fixed the references in CIM_BasedOn.
— SB Multipath Management Profile
— Promoted the maturity level from DRAFT to EXPERIMENTAL for update to remove SNIA_
classes and use DMTF CIM_ classes (TSG-SMIS-SCR00315.001).
— Added reference to SMI-S Version 1.6.1 Revision 5. No content in this deprecated profile SB
Multipath.
— SCSI Multipath Management Profile
— Added keys to CIM_SCSIMultipathConfigurationCapabilities and CIM_SCSIMultipathSettings
(SMIS-170-Draft-SCR00006).
— Annex A (informative) SMI-S Information Model
— DMTF’s CIM schema version changed to 2.45.0.
— References
© ISO/IEC 2021 – All rights reserved v

— Added DMTF DSP1054 v1.2.2, Indications Profile (and changed version to 1.2.2 throughout
book).
— Updated DSP 1071, Multi-type System Memory Profile reference here and in profiles.
— Added reference to DSP 1119, 1.0.0b Diagnostics Job Control Profile.
— Removed reference to DSP 1119\.
— Removed 2.3.
A list of all parts in the ISO/IEC 24775 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
vi © ISO/IEC 2021 – All rights reserved

1 INTENDED AUDIENCE
2 This document is intended for use by individuals and companies engaged in developing, deploying, and
3 promoting interoperable multi-vendor SANs through the Storage Networking Industry Association (SNIA)
4 organization.
5 CHANGES TO THE SPECIFICATION
6 Each publication of this specification is uniquely identified by a three-level identifier, comprised of a
7 version number, a release number and an update number. The current identifier for this specification is
8 version 1.8.0. Future publications of this specification are subject to specific constraints on the scope of
9 change that is permissible from one publication to the next and the degree of interoperability and
10 backward compatibility that should be assumed between products designed to different publications of
this standard. The SNIA has defined three levels of change to a specification:
• Major Revision: A major revision of the specification represents a substantial change to the underlying scope
or architecture of the SMI-S API. A major revision results in an increase in the version number of the version
identifier (e.g., from version 1.x.x to version 2.x.x). There is no assurance of interoperability or backward
compatibility between releases with different version numbers.
• Minor Revision: A minor revision of the specification represents a technical change to existing content or an
adjustment to the scope of the SMI-S API. A minor revision results in an increase in the release number of
the specification’s identifier (e.g., from x.1.x to x.2.x). Minor revisions with the same version number preserve
interoperability and backward compatibility.
• Update: An update to the specification is limited to minor corrections or clarifications of existing specification
content. An update will result in an increase in the third component of the release identifier (e.g., from x.x.1 to
x.x.2). Updates with the same version and minor release levels preserve interoperability and backward
compatibility.
TYPOGRAPHICAL CONVENTIONS
Maturity Level
In addition to informative and normative content, this specification 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 the following sections. The
typographical convention is intended to provide a sense of the maturity of the affected material, without
29 altering its normative content. By recognizing the relative maturity of different sections of the standard, an
30 implementer should be able to make more informed decisions about the adoption and deployment of
31 different portions of the standard in a commercial product.
This specification has been structured to convey both the formal requirements and assumptions of the
33 SMI-S API and its emerging implementation and deployment lifecycle. Over time, the intent is that all
34 content in the specification will represent a mature and stable design, be verified by extensive
35 implementation experience, assure consistent support for backward compatibility, and rely solely on
36 content material that has reached a similar level of maturity. Unless explicitly labeled with one of the
subordinate maturity levels defined for this specification, content is assumed to satisfy these
37 requirements and is referred to as “Finalized”. Since much of the evolving specification
38 content in any given release will not have matured to that level, this specification 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.
© ISO/IEC 2021 – All rights reserved

46 Experimental Maturity Level
No material is included in this document unless its initial architecture has been completed and reviewed.
Some content included in this document 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 specification. 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 specification. Experimental material can advance to a higher maturity leve
...


INTERNATIONAL ISO/IEC
STANDARD 24775-7
Second edition
2021-03
Information technology — Storage
management —
Part 7:
Host elements
Reference number
©
ISO/IEC 2021
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved

Foreword
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of document should be noted (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details
of any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC list of patent
declarations received (see http://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT),
see www.iso.org/iso/foreword.html.
This document was prepared by SNIA (as Storage Management Technical Specification, Part 7 Host
Elements, Version 1.8.0, Revision 5) and drafted in accordance with its editorial rules. It was adopted,
under the JTC 1 PAS procedure, by Joint Technical Committee ISO/IEC JTC 1, Information technology.
This second edition cancels and replaces the first edition (ISO/IEC 24775-7:2014), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— USAGE text was revised to address code (now included in the front matter for all SNIA specifications)
— All recipes and their references were deleted.
— Instances of subprofile were changed to profile. In the annex, instances of subprofile were changed
to component profile (TSG meeting voice vote).
— Profile versions and related text were updated. (TSG meeting voice vote).
— Indications have been replaced by DMTF Indications, and all affected clauses updated. (TSG meeting
voice vote).
— Instances of Experimental within profiles already labeled as Experimental were removed to avoid
confusion and redundancy. (Editorial change)
— CIM/XML was changed to CIM-XML (Response to ballot comments).
© ISO/IEC 2021 – All rights reserved iii

— Annex: SMI-S Information Model.
— The CIM schema version was changed to 2.51 for V1.8.0 Rev3.
— Disk Partition Profile
— Added descriptions of the references in CIM_BasedOn (Partition to Extent), CIM_BasedOn
(Partition to Partition), CIM_LogicalDiskBasedOnPartition (LogicalDisk to Partition) and
CIM_SystemDevice (System to LogicalDisk).
— Made CIM_LogicalDiskBasedOnPartition (LogicalDisk to Partition) and CIM_SystemDevice
(System to LogicalDisk) Conditional (rather than Optional), since CIM_LogicalDisk is Optional.
Storage HBA Profile (SMI TWG Reviews).
— Fixed the version numbers on the Related Profiles to match what the profiles claim.
— Added Descriptions to the references in CIM_ProductElementComponent, CIM_Realizes and
CIM_SystemDevice.
— FC HBA Profile
— Removed the profile content and added text re it being Deprecated. (CORE-SMIS-SCR-000).
— Host Discovered Resources Profile
— Promoted the maturity level from DRAFT to EXPERIMENTAL for update to remove SNIA_
classes and use DMTF CIM_ classes.
— Added the related profiles table to the spec.
— Moved NameFormat from LogicalDevice to LogicalDisk to match the mof.
— Moved NameNamespace from LogicalDevice to LogicalDisk to match the mof.
— Added descriptions on the References for CIM_HostedAccessPoint and CIM_SystemDevice.
— Marked the SB Multipath Management Related Profile as Deprecated (SMIS-180-Errata-
SCR00002).
— Host Hardware RAID Controller Profile
— Fixed the version numbers on the Related Profiles to match what the profiles claim.
— Added two ElementSoftwareIdentity associations to cover the 3 SoftwareIdentity classes (one
Mandatory and one Optional).
— Added descriptions on the References for CIM_AssociatedAlarm,
CIM_ProductPhysicalComponent,
CIM_ProtocolControllerForUnit (Extent or MediaAccessDevice), CIM_Realizes (Associates
PhysicalPackage to PortController) and CIM_SAPAvailableForElement.
— Fixed the description of Dependent in CIM_ControlledBy.
— Added Key properties to the CIM_SoftwareIdentity CIM Element tables.
— Changed the version of the profile to 1.7.0.
— iSCSI Initiator
— Removed all occurrences of “(Host Hardware RAID Controller)” (CORE-SMIS-SCR-000).
— Removed MATURITY="Draft" from the Launch In Context supported profile.
— Added Descriptions for References in 2 CIM_BindsTo associations, CIM_ControlledBy, 2
CIM_DeviceSAPImplementations and CIM_ElementSoftwareIdentity.
— Added Descriptions for References in 2 CIM_EndpointOfNetworkPipes,
CIM_NetworkPipeComposition, CIM_ProductPhysicalComponent and CIM_Realizes.
iv © ISO/IEC 2021 – All rights reserved

— Added Descriptions for references in CIM_SAPAvailableForElement.
— Added Keys to CIM_PhysicalPackage.
— Changed the Central Class from PortController to CIM_ComputerSystem (TSG-SMIS-
SCR00333).
— Memory Configuration Profile
— Updated due to class and property name changes in DMTF Multi-type Memory profile (SMIS-
170-Draft-SCR00006).
— Introduced staged request concept.
— Added use cases.
— Addressed comments from internal and partner reviews.
— Changed diagrams approved in Core TWG 3/23/15.
— Changed SystemCreateClassName in class CIM_MemoryConfigurationService to
SystemCreationClassName.
— Changed RemainingCapacity in class CIM_ResourcePool to CurrentlyConsumedResource.
— Changed ChangeableType in class CIM_MemoryAllocationSettingData to ResourceType.
— Fixed the description of Replication in class CIM_MemoryAllocationSettingData.
— Added a description for ChannelCount in class CIM_MemoryAllocationSettingData.
— Persistent Memory Configuration Profile
— Added new material (most of profile content) to manage NVDIMMs (SMIS-170-Draft-
SCR00006).
— Changed diagrams approved in Core TWG 3/23/15- Changed RemainingCapacity in class
CIM_ResourcePool to Reserved.
— Changed SecurityFeatues in class CIM_PersistentMemoryCapabilities to SecurityFeatures.
— Removed ChannelCount in class CIM_PersistentMemoryNamespaceSettingData, since it is not
in the mof and not referenced anywhere in the profile text.
— Added three methods to CIM_PersistentMemoryService to support the profile text.
— Fixed the ManagedElement reference in CIM_ElementConformsToProfile.
— Fixed the references in CIM_SystemDevice.
— Fixed the references in CIM_BasedOn.
— SB Multipath Management Profile
— Promoted the maturity level from DRAFT to EXPERIMENTAL for update to remove SNIA_
classes and use DMTF CIM_ classes (TSG-SMIS-SCR00315.001).
— Added reference to SMI-S Version 1.6.1 Revision 5. No content in this deprecated profile SB
Multipath.
— SCSI Multipath Management Profile
— Added keys to CIM_SCSIMultipathConfigurationCapabilities and CIM_SCSIMultipathSettings
(SMIS-170-Draft-SCR00006).
— Annex A (informative) SMI-S Information Model
— DMTF’s CIM schema version changed to 2.45.0.
— References
© ISO/IEC 2021 – All rights reserved v

— Added DMTF DSP1054 v1.2.2, Indications Profile (and changed version to 1.2.2 throughout
book).
— Updated DSP 1071, Multi-type System Memory Profile reference here and in profiles.
— Added reference to DSP 1119, 1.0.0b Diagnostics Job Control Profile.
— Removed reference to DSP 1119\.
— Removed 2.3.
A list of all parts in the ISO/IEC 24775 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
vi © ISO/IEC 2021 – All rights reserved

1 INTENDED AUDIENCE
2 This document is intended for use by individuals and companies engaged in developing, deploying, and
3 promoting interoperable multi-vendor SANs through the Storage Networking Industry Association (SNIA)
4 organization.
5 CHANGES TO THE SPECIFICATION
6 Each publication of this specification is uniquely identified by a three-level identifier, comprised of a
7 version number, a release number and an update number. The current identifier for this specification is
8 version 1.8.0. Future publications of this specification are subject to specific constraints on the scope of
9 change that is permissible from one publication to the next and the degree of interoperability and
10 backward compatibility that should be assumed between products designed to different publications of
this standard. The SNIA has defined three levels of change to a specification:
• Major Revision: A major revision of the specification represents a substantial change to the underlying scope
or architecture of the SMI-S API. A major revision results in an increase in the version number of the version
identifier (e.g., from version 1.x.x to version 2.x.x). There is no assurance of interoperability or backward
compatibility between releases with different version numbers.
• Minor Revision: A minor revision of the specification represents a technical change to existing content or an
adjustment to the scope of the SMI-S API. A minor revision results in an increase in the release number of
the specification’s identifier (e.g., from x.1.x to x.2.x). Minor revisions with the same version number preserve
interoperability and backward compatibility.
• Update: An update to the specification is limited to minor corrections or clarifications of existing specification
content. An update will result in an increase in the third component of the release identifier (e.g., from x.x.1 to
x.x.2). Updates with the same version and minor release levels preserve interoperability and backward
compatibility.
TYPOGRAPHICAL CONVENTIONS
Maturity Level
In addition to informative and normative content, this specification 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 the following sections. The
typographical convention is intended to provide a sense of the maturity of the affected material, without
29 altering its normative content. By recognizing the relative maturity of different sections of the standard, an
30 implementer should be able to make more informed decisions about the adoption and deployment of
31 different portions of the standard in a commercial product.
This specification has been structured to convey both the formal requirements and assumptions of the
33 SMI-S API and its emerging implementation and deployment lifecycle. Over time, the intent is that all
34 content in the specification will represent a mature and stable design, be verified by extensive
35 implementation experience, assure consistent support for backward compatibility, and rely solely on
36 content material that has reached a similar level of maturity. Unless explicitly labeled with one of the
subordinate maturity levels defined for this specification, content is assumed to satisfy these
37 requirements and is referred to as “Finalized”. Since much of the evolving specification
38 content in any given release will not have matured to that level, this specification 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.
© ISO/IEC 2021 – All rights reserved

46 Experimental Maturity Level
No material is included in this document unless its initial architecture has been completed and reviewed.
Some content included in this document 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 specification. 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 specification. Experimental material can advance to a higher maturity leve
...

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