Desktop Management Interface

Last updated
Desktop Management Interface
AbbreviationDMI
StatusSuperseded by CIM
Year started1994;30 years ago (1994)
Organization Distributed Management Task Force
Base standards SMBIOS, WBEM, WS-Management
Domain Desktop management
Website www.dmtf.org/standards/dmi

The Desktop Management Interface (DMI) generates a standard framework for managing and tracking components in a desktop, notebook or server computer, by abstracting these components from the software that manages them. The development of DMI, 2.0 version June 24, 1998, [1] marked the first move by the Distributed Management Task Force (DMTF) into desktop-management standards. [2] Before the introduction of DMI, no standardized source of information could provide details about components in a personal computer.

Contents

Due to the rapid development of DMTF technologies, such as Common Information Model (CIM), the DMTF defined an "End of Life" process for DMI, which ended on March 31, 2005. [3]

From 1999, Microsoft required OEMs and BIOS vendors to support the DMI interface/data-set in order to have Microsoft certification[ citation needed ].

DMI and SMBIOS

DMI exposes system data (including the System Management BIOS (SMBIOS) data) to management software, but the two specifications function independently.

DMI is commonly confused with SMBIOS, which was actually called DMIBIOS in its first revisions.

Optional additional services: MIF data and MIF routines

When software queries a memory-resident agent that resides in the background, it responds by sending data in MIFs (Management Information Format) or activating MIF routines. Static data in a MIF would contain items such as model ID, serial number, memory- and port-addresses. A MIF routine could read memory and report its contents.

DMI and SNMP

DMI can co-exist with SNMP and other management protocols. For example, when an SNMP query arrives, DMI can fill out the SNMP MIB with data from its MIF. A single workstation or server can serve as a proxy agent that would contain the SNMP module and service an entire LAN segment of DMI-capable machines.

See also

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Management Information Format is a format used to describe a hardware or software component. MIF files are used by DMI to report system configuration information. Although MIF is a system-independent format, it is used primarily by Windows systems. To install a new device in a Windows 95 system, the corresponding MIF file is needed.

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dmidecode Command-line utility

dmidecode is a free userspace command-line utility for Linux that can parse the SMBIOS data. The name dmidecode is derived from Desktop Management Interface, a related standard with which dmidecode originally interfaced. SMBIOS was originally named DMIBIOS. The Linux kernel and other modern operating systems such as the BSD family contain an SMBIOS decoder, allowing systems administrators to inspect system hardware configuration and to enable or disable certain workarounds for problems with specific systems, based on the provided SMBIOS information. Information provided by this utility typically includes the system manufacturer, model name, serial number, BIOS version and asset tag, as well other details of varying level of interest and reliability, depending on the system manufacturer. The information often includes usage status for the CPU sockets, expansion slots and memory module slots, and the list of I/O ports. Decoded DMI tables for various computer models are collected in a public GitHub repository.

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CIM Schema is a computer specification, part of Common Information Model standard, and created by the Distributed Management Task Force.

References

  1. "Desktop Management Interface Specification" (PDF). Distributed Management Task Force . 24 June 1998. Archived from the original (PDF) on 20 October 2012. Retrieved 28 September 2018. This document describes the Desktop Management Interface, or DMI, that acts as a layer of abstraction between these two worlds
  2. "Definition of: DMI". PC Magazine Encyclopedia. pcmag.com. Archived from the original on 9 October 2012. Retrieved 2009-09-28. The first desktop management standard from the DMTF.
  3. "DMI | dmtf.org". www.dmtf.org. Retrieved 2021-04-19. Due to the rapid advancement of DMTF technologies, such as CIM, DMTF defined an end of life process for its Desktop Management Interface (DMI), which concluded March 31, 2005.

Further reading