Intelligent Platform Management Interface

Intelligent Platform Management Interface

The Intelligent Platform Management Interface (IPMI) specification defines a set of common interfaces to a computer system which system administrators can use to monitor system health and manage the system. Several dozen [http://www.intel.com/design/servers/ipmi/adopterlist.htm companies] support IPMI. Dell, HP, Intel Corporation and NEC Corporation announced IPMI v1.0 on 1998-09-16, v1.5 on 2001-03-01, and v2.0 on 2004-02-14.

IPMI operates independently of the operating system (OS) and allows administrators to manage a system remotely even in the absence of the OS or the system management software, or even if the monitored system is not powered on. IPMI can also function when the OS has started, and offers enhanced features when used with the system management software. IPMI gives only the structure and format of the interfaces as a standard; implementation may vary.

An implementation of IPMI version 1.5 and later can send out alerts via a direct serial connection, a local area network (LAN) or a serial over LAN (SOL) connection to a remote client. System administrators can then use IPMI messaging to query platform status, to review hardware logs, or to issue other requests from a remote console through the same connections. The standard also defines an alerting mechanism for the system to send a simple network management protocol (SNMP) platform event trap (PET).

The IPMI consists of a main controller called the Baseboard Management Controller (BMC) and other satellite controllers. The satellite controllers within the same chassis are connected to the BMC via the system interface called IPMB (Intelligent Platform Management Bus/Bridge). IPMB is an enhanced implementation of I²C (Inter-Integrated Circuit). The BMC connects to satellite controllers or another BMC in another chassis via IPMC (Intelligent Platform Management Chassis) bus/bridge. It can be managed through the Remote Management Control Protocol (RMCP), a specialized wire protocol defined by this spec.

A Field Replaceable Unit (FRU) holds the inventory (such as vendor id, manufacturer etc.) of the devices that are replaceable. A Sensor Data Records (SDR) repository provides the properties of the individual sensors present on the board. For example, the board may contain sensors for temperature, fan speed, and voltage.

ee also

*Lights out management (LOM)
*Wired for Management (WfM)

External links

* [http://www.intel.com/design/servers/ipmi/ Intel Website] (includes [http://www.intel.com/design/servers/ipmi/spec.htm specification download] )
* [http://sourceforge.net/projects/openipmi/ OpenIPMI] An IPMI client (open source)
* [http://sourceforge.net/projects/ipmitool/ ipmitool] Command-line interface to IPMI (open source)
* [http://sourceforge.net/projects/ipmiutil/ ipmiutil] IPMI client-side utilities (open source)
* [http://www.gnu.org/software/freeipmi/ GNU Freeipmi] IPMI libraries and tools (open source)

References

*cite web|last=Zhuo|first=Haihong|coauthors=Yin, Jianwen; Rao, Anil V.|title=Remote Management with the Baseboard Management Controller in Eighth-Generation Dell PowerEdge Servers|url=http://www.dell.com/downloads/global/power/ps4q04-20040110-Zhuo.pdf |format=pdf|publisher=Dell|accessdate=2005-06-20


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