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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

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 workarounds.

       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 freeipmi-libraries.txt.

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 motherboard/machine.


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


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


       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


       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


       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)