Storage Management Initiative – Specification

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Storage Management Initiative Specification
Year started2002
Latest version1.6
September 2014
OrganizationStorage Networking Industry Association
Base standardsCIM, WBEM
DomainComputer storage

The Storage Management Initiative Specification, commonly called SMI-S, is a computer data storage standard developed and maintained by the Storage Networking Industry Association (SNIA). It has also been ratified as an ISO standard.[1] SMI is based upon the Common Information Model and the Web-Based Enterprise Management standards defined by the Distributed Management Task Force, which define management functionality via HTTP. The most recent approved version of SMI-S is available at the SNIA.[2]

The main objective of SMI-S is to enable broad interoperable management of heterogeneous storage vendor systems. The current version is SMI-S V1.6.0. Over 75 software products and over 800 hardware products are certified as conformant to SMI-S.[3]

Basic concepts[edit]

SMI-S defines CIM management profiles for storage systems. The complete SMI Specification is categorized in profiles and subprofiles. A profile describes the behavioral aspects of an autonomous, self-contained management domain. SMI includes profiles for Arrays, Switches, Storage Virtualizers, Volume Management and many other domains. In DMTF parlance, a provider is an implementation for a specific profile. A subprofile describes part of the domain, which can be a common part in many profiles.

At a very basic level, SMI-S entities are divided into two categories:

  • Clients are management software applications that can reside virtually anywhere within a network, provided they have a communications link (either within the data path or outside the data path) to providers.
  • Servers are the devices under management. Servers can be disk arrays, virtualization engines, host bus adapters, switches, tape drives, etc.

SMI-S timeline[edit]

  • 2000 – Collection of computer storage industry leaders led by Roger Reich begins building an interoperable management backbone for storage and storage networks (named Bluefin) in a small consortia called the Partner Development Process.
  • 2002 – Bluefin donated by the consortia to the Storage Networking Industry Association (SNIA) and later renamed to Storage Management Initiative – Specification or SMI-S. SMI-S 1.0 publicly announced by the SNIA.
  • 2003 – The Storage Management Initiative launches formal industry wide specification development, interoperability testing and demonstrations programs, as well as conformance testing systems and certifications. Work proceeds in the SMI Technical Steering Committee and related TWGs.
  • 2004 – SMI-S 1.0.2 becomes an ANSI standard. Initial development of SMI-S 1.1.0 started.
  • 2005 – SMI-S 1.0.2 submitted to ISO.
  • 2006 – SMI-S 1.0.3 accepted as an ISO standard. SNIA Technical Position of SMI-S 1.1.0 released. Working Drafts developed for SMI-S 1.2.0.
  • 2007 – SMI-S 1.2.0 published as a SNIA Technical Position. Working Drafts developed for SMI-S 1.3.0 and SMI-S 1.4.0.
  • 2008 – SMI-S 1.1.1 published as an ANSI standard [4] and submitted to ISO for consideration as an ISO standard. SMI-S 1.3.0 published as a SNIA Technical Position.
  • 2009 - SMI-S 1.4.0 published as a SNIA Technical Position. Working Drafts developed for SMI-S 1.5.0.
  • 2010 – SMI-S 1.5.0 published as a SNIA Technical Position. Working Drafts developed for SMI-S 1.6.0.
  • 2011 – SMI-S 1.1.1 published as an ISO standard, ISO/IEC 24775:2011.[1] SMI-S 1.3.0 published as an ANSI standard: INCITS 388-2011.[5] Development continues on SMI-S 1.6.0 and 1.6.1 in SNIA Technical Work Groups. Discussions are being conducted re a possible SMI-S V2.0.
  • 2012 - SMI-S 1.6.0 published as a SNIA Technical Position. Five SMI-Lab Plugfests held.
  • 2013 - Working Drafts developed for SMI-S 1.6.1. First international (in US and China) SMI-Lab Plugfest held—one of five SMI-Lab Plugfests.
  • 2014 - Eight books that comprise SMI-S 1.5.0 published as an ISO standard: Information technology -- Storage management.[6] SMIA-S 1.6.1 Rev 5 [7] was published as a SNIA Technical Position. SMI-S 1.7.0 Rev 1 was an internal Working Draft. Six SMI-Lab Plugfests, including two international Plugfests (US and China).
  • 2015 - Scoping for SMI-S 1.8.0. Working drafts of 1.7.0 . Six SMI-Lab Plugfests in the U.S., one in China.
  • 2016 - SMI-S 1.7.0 Rev. 5 published as a SNIA Technical Position.
  • 2017 - Development is ongoing on the next version of SMI-S.

Open source projects[edit]

  • OpenPegasus.
  • StorageIM SMI-S monitor client for SMI-enabled Arrays, Switches, HBAs and Storage Libraries.
  • SBLIM Umbrella project for a collection of systems management tools to enable WBEM on GNU/Linux.

See also[edit]

  • CIM — Common Information Model
  • WBEM — Web-Based Enterprise Management
  • SNIA — Storage Networking Industry Association
  • SCVMM System Center 2012 - Virtual Machine Manager
  • SMI-S (SNIA SMI-S website)


  1. ^ a b ISO/IEC 24775:2011, ISO.
  2. ^ SMI, Current standards, SNIA.
  3. ^ CTP Test Statistics, Tech programs, SNIA.
  4. ^ INCITS 388-2008, ANSI.
  5. ^ INCITS 388-2011, ANSI.
  6. ^ ISO/IEC 24775-1:2014 through ISO/IEC 24775-8:2014
  7. ^ SMIA-S 1.6.1 Rev 5

External links[edit]