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       FreeIPMI - FreeIPMI overview


       FreeIPMI  provides  in-band  and out-of-band IPMI software based on the
       IPMI v1.5/2.0 specification.

What is IPMI?

       The IPMI  specification  defines  a  set  of  interfaces  for  platform
       management   and   is  implemented  by  a  number  vendors  for  system
       management. The features of IPMI that most users will be interested  in
       are  sensor  monitoring,  system  event  monitoring, power control, and
       serial-over-LAN (SOL). The FreeIPMI tools and  libraries  listed  below
       should  provide  users with the ability to access and utilize these and
       many other features of IPMI.

Getting Started with IPMI

       IPMI can be used in-band (i.e. running on a machine locally) or out-of-
       band (i.e. connecting remotely).

       Most  FreeIPMI  tools  can  operate in-band by using one of the in-band
       drivers included. These in-band drivers include a direct KCS  interface
       driver,  a Linux SSIF driver through the SSIF device (i.e. /dev/i2c-0),
       the OpenIPMI Linux kernel driver (i.e. /dev/ipmi0), and the Sun/Solaris
       BMC  driver  (i.e.  /dev/bmc).  If  your  system  requires  the  use of
       installed drivers, those appropriate modules must be installed ahead of
       time.  However,  most  systems  should automatically load these drivers
       when appropriate.

       Under most scenarios, the FreeIPMI tools should automatically  discover
       which  in-band  interface  to use and the proper settings to use. Users
       may execute the tools on the command line to  begin  using  them.  Some
       motherboards  may  require  you  to  determine  driver type, addresses,
       paths, etc. on your own and pass them as command line  options  to  the
       tools.  You  may use ipmi-locate(8) to help determine this information.
       Other tools such as dmidecode(8) may also provide this information.

       To use IPMI out-of-band  with  tools  such  as  ipmipower(8)  or  ipmi-
       sensors(8),  the  remote machine's BMC must first be configured for out
       of band communication. Typically, this  involves  setting  a  username,
       password, IP address, MAC address, and a few other parameters. This can
       be done using the tool bmc-config(8).  Additional information on how to
       configure  with  bmc-config(8)  can  be found in the bmc-config.conf(5)
       manpage. Some vendors may pre-configure their motherboards with default
       values  so  that  bmc-config(8)  can  be used remotely to configure the
       machine. However, most of the time, the BMC must be configured  in-band
       before  out-of-band  access can be allowed (for example, the correct IP
       address and MAC address must be configured).

       In order to remotely connect to a machine, you typically  must  specify
       the  host,  username,  and  password  for the tool in order to connect.
       Depending on  configuration  settings,  a  K_g  key,  privilege  level,
       authentication  type,  cipher suite id, or protocol version may need to
       be specified.

       Some vendors may have not implemented IPMI properly  and  a  workaround
       must  be  specified  into  FreeIPMI  to  ensure  the  tool  can execute
       properly. For example, a fair number of vendors  have  populated  their
       FRU  records  with  invalid  checksums. To properly ignore these set of
       checksums a  skipchecks  workaround  has  been  added  to  ipmi-fru(8).
       Please  see  each  of  the  tool  manpages  to  see a list of available

       Additional information, examples, and general trouble-shooting  can  be
       found in each of the tool manpages.

General Use

       The primary tools that most users of FreeIPMI will be interested in for
       system management are the following:


       A tool to read IPMI sensor readings to aid in system monitoring.


       A tool to read and manage IPMI System Event Log (SEL) records to aid in
       system debugging.


       A tool for remote power control.


       A tool for Serial-over-Lan (SOL) console access.

       Many  other  tools and libraries are listed below that cover additional
       features and areas of IPMI.

       Additional information, examples, and general trouble-shooting  can  be
       found in each of the tool manpages.


       In  order  to  avoid  typing  in a long list of command line options to
       specify IPMI communication requirements everytime a command is executed
       (e.g.  driver  paths,  usernames, passwords, etc.), an alternate set of
       default values can be set for  most  FreeIPMI  tools  in  the  FreeIPMI
       configuration file. See freeipmi.conf(5) for more information.

HPC Support

       Much   of   FreeIPMI   was  written  with  HPC  support  in  mind.  The
       configuration tools ( bmc-config(8), ipmi-pef-config(8),  ipmi-sensors-
       config(8),  and  ipmi-chassis-config(8)  )  come with file input/output
       support so that configuration can be copied and verified  across  nodes
       in  a cluster. Most tools (like ipmipower(8) and ipmi-sensors(8) ) come
       with hostrange support so  multiple  hosts  can  be  specified  on  the
       command  line  at  the  same  time and IPMI can be executed against the
       hosts in parallel. See tool manpages for more  information.   Also  see
       the document freeipmi-hostrange.txt for detailed usage and explanation.
       The ipmimonitoring(8) tool interprets sensor readings as well  as  just
       reporting  them.  By  mapping sensor readings into NOMINAL, WARNING, or
       CRITICAL states,  it  makes  monitoring  sensors  easier  across  large
       numbers of nodes.


       For  information  on  the  libraries  that  can be used to program IPMI
       applications  with,  please  see   libfreeipmi(3),   libipmiconsole(3),
       libipmimonitoring(3),   and  libipmidetect(3).   Or  see  the  document

Project Tools

       The following tools are distributed and supported by FreeIPMI.


       A tool to read information about a BMC such as device version  numbers,
       device support, and globally unique IDs (guids).


       A  tool  to  configure  general  BMC  and  IPMI  information.  Supports
       configuration  of   usernames,   passwords,   networking   information,
       security, Serial-over-LAN (SOL), and other core fields.


       A tool/daemon to manage a BMC Watchdog. This tool is typically used for
       system timeout management and automatic system restarts in the event of
       a system crash.


       A   tool   to   manage/monitor   a  chassis,  such  as  chassis  power,
       identification (i.e. LED control), and status.


       A tool  to  read  field  replaceable  unit  (FRU)  information  from  a


       A  tool  to  read  and  manage IPMI System Event Log (SEL) records. SEL
       records store system event information and may be useful for  debugging


       A  tool  to  read IPMI sensor readings and sensor data repository (SDR)


       A tool for remote power control.


       A tool for Serial-over-Lan (SOL) console access.


       A tool for sensor monitoring and interpretation. The tool is similar to
       ipmi-sensors, but sensor readings are analyzed and mapped into Nominal,
       Warning, and Critical states.


       A tool that provides hex input/output of IPMI commands.


       A tool that can probe for information  about  the  location  of  a  BMC
       device, such as device addresses.


       A tool to configure IPMI chassis information. Supports configuration of
       boot device, power restore policy, and other chassis related fields.


       A tool to configure Platform Event Filtering (PEF) information.


       A tool to configure IPMI  sensors.  Supports  configuration  of  sensor
       thresholds, sensor events, and other sensor related fields.


       A  tool  to  perform  Data  Center  Manageability Interface (DCMI) IPMI
       extension commands. Supports extensions for asset management and  power
       usage management.


       A tool to perform advanced BMC commands.


       An IPMI ping tool for debugging.


       A RMCP ping tool for debugging.


       An IPMI tool for OEM specific commands.


       A tool and daemon for IPMI node detection.

       Additional  information,  examples, and general trouble-shooting can be
       found in each of the tool manpages.

Project Libraries

       The following libraries are distributed and supported by FreeIPMI.


       A C library that includes KCS, SSIF, OpenIPMI Linux,  and  Solaris  BMC
       drivers,  IPMI  1.5  and  IPMI  2.0  LAN communication interfaces, IPMI
       packet building utilities, IPMI command utilities,  and  utilities  for
       reading/interpreting/managing IPMI.


       A  library for Serial-over-Lan (SOL) console access. SOL console access
       is abstracted into a file descriptor interface, so users may  read  and
       write console data through a file descriptor.


       A  library  for sensor monitoring and interpretation. Sensor monitoring
       and interpretation of those sensors is abstracted into an API  with  an
       iterator interface.


       A library for IPMI node detection.


       Report bugs to <> or <>.


       Copyright © 2003-2010 FreeIPMI Core Team.

       FreeIPMI  is  free  software;  you can redistribute it and/or modify it
       under the terms of the GNU General Public License as published  by  the
       Free  Software Foundation; either version 2 of the License, or (at your
       option) any later version.


       libfreeipmi(3),          libipmiconsole(3),           libipmidetect(3),
       libipmimonitoring(3),  freeipmi.conf(5),  bmc-config(8), bmc-device(8),
       bmc-info(8),  bmc-watchdog(8),  ipmi-chassis(8),   ipmi-fru(8),   ipmi-
       locate(8),  ipmi-oem(8),  ipmi-pef-config(8), ipmi-raw(8), ipmi-sel(8),
       ipmi-sensors(8), ipmi-sensors-config(8), ipmiconsole(8), ipmidetect(8),
       ipmimonitoring(8), ipmiping(8), ipmipower(8), rmcpping(8)