FREEIPMI man page on Oracle
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FREEIPMI(7) Overview FREEIPMI(7)
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NAME
FreeIPMI - FreeIPMI overview
Introduction
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 manage‐
ment and is implemented by a number vendors for system management. The
features of IPMI that most users will be interested in are sensor moni‐
toring, 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 fea‐
tures 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-sen‐
sors(8), the remote machine's BMC must first be configured for out of
band communication. Typically, this involves setting a username, pass‐
word, 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 prop‐
erly. For example, a fair number of vendors have populated their FRU
records with invalid checksums. To properly ignore these set of check‐
sums 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:
Ipmi-sensors
A tool to read IPMI sensor readings to aid in system monitoring.
Ipmi-sel
A tool to read and manage IPMI System Event Log (SEL) records to aid in
system debugging.
Ipmipower
A tool for remote power control.
Ipmiconsole
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.
Configuration
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 con‐
figuration file. See freeipmi.conf(5) for more information.
HPC Support
Much of FreeIPMI was written with HPC support in mind. The configura‐
tion 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 clus‐
ter. Most tools (like ipmipower(8) and ipmi-sensors(8) ) come with hos‐
trange support so multiple hosts can be specified on the command line
at the same time and IPMI can be executed against the hosts in paral‐
lel. See tool manpages for more information. Also see the document
freeipmi-hostrange.txt for detailed usage and explanation. Ipmi-sen‐
sors(8) and the libipmimonitoring(3) library support the ability to
interpret 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.
Development
For information on the libraries that can be used to program IPMI
applications with, please see libfreeipmi(3), libipmiconsole(3), libip‐
mimonitoring(3), and libipmidetect(3). Or see the document freeipmi-
libraries.txt.
Project Tools
The following tools are distributed and supported by FreeIPMI.
Bmc-info
A tool to read information about a BMC such as device version numbers,
device support, and globally unique IDs (guids).
Bmc-config
A tool to configure general BMC and IPMI information. Supports configu‐
ration of usernames, passwords, networking information, security,
Serial-over-LAN (SOL), and other core fields.
Bmc-watchdog
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.
Ipmi-chassis
A tool to manage/monitor a chassis, such as chassis power, identifica‐
tion (i.e. LED control), and status.
Ipmi-fru
A tool to read field replaceable unit (FRU) information from a mother‐
board/machine.
Ipmi-sel
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.
Ipmi-sensors
A tool to read IPMI sensor readings and sensor data repository (SDR)
information.
Ipmipower
A tool for remote power control.
Ipmiconsole
A tool for Serial-over-Lan (SOL) console access.
Ipmi-raw
A tool that provides hex input/output of IPMI commands.
Ipmi-locate
A tool that can probe for information about the location of a BMC
device, such as device addresses.
Ipmi-chassis-config
A tool to configure IPMI chassis information. Supports configuration of
boot device, power restore policy, and other chassis related fields.
Ipmi-pef-config
A tool to configure Platform Event Filtering (PEF) information.
Ipmi-pet
A tool to parse and interpret Platform Event Traps (PET).
Ipmi-sensors-config
A tool to configure IPMI sensors. Supports configuration of sensor
thresholds, sensor events, and other sensor related fields.
Ipmi-dcmi
A tool to perform Data Center Manageability Interface (DCMI) IPMI
extension commands. Supports extensions for asset management and power
usage management.
Bmc-device
A tool to perform advanced BMC commands, such as resetting the BMC,
configuring ACPI, configuring SDR/SEL time, manually generating events,
re-arming sensors, and configuring manufacturer settings.
Ipmiping
An IPMI ping tool for debugging.
Rmcpping
A RMCP ping tool for debugging.
Ipmi-oem
An IPMI tool for OEM specific commands.
Ipmidetect/Ipmidetectd
A tool and daemon for IPMI node detection.
Ipmiseld
A daemon that regularly polls the SEL and stores the events to the
local syslog.
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.
Libfreeipmi
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.
Libipmiconsole
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.
Libipmimonitoring
A library for sensor monitoring that abstracts away most IPMI details.
Libipmidetect
A library for IPMI node detection.
REPORTING BUGS
Report bugs to <freeipmi-users@gnu.org> or <freeipmi-devel@gnu.org>.
COPYRIGHT
Copyright © 2003-2012 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 3 of the License, or (at your
option) any later version.
SEE ALSO
libfreeipmi(3), libipmiconsole(3), libipmidetect(3), libipmimonitor‐
ing(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-pet(8), ipmi-raw(8), ipmi-sel(8),
ipmi-sensors(8), ipmi-sensors-config(8), ipmiconsole(8), ipmidetect(8),
ipmiping(8), ipmipower(8), rmcpping(8)
http://www.gnu.org/software/freeipmi/
FreeIPMI 1.2.9 2014-05-01 FREEIPMI(7)
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