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Using the integrated management module
The integrated management module (IMM) is a second generation of the functions
that were formerly provided by the baseboard management controller hardware. It
combines service processor functions, video controller, and (when IMM Premium is
installed) remote presence function in a single chip.
The IMM supports the following basic systems-management features:
v Environmental monitor with fan speed control for temperature, voltages, fan
failure, and power supply failure.
v EasyLED diagnostics LEDs indicators to report errors that occur with fans, power
supplies, microprocessor, hard disk drives, and system errors.
v DIMM error assistance. The Unified Extensible Firmware Interface (UEFI)
disables a failing DIMM that is detected during POST, and the IMM lights the
associated system error LED and the failing DIMM error LED.
v System event log (SEL).
v ROM-based IMM firmware flash updates.
v Auto Boot Failure Recovery (ABR).
v IMM Premium, which enables remote presence support (remote video, remote
keyboard/mouse, and remote storage).
v Automatic microprocessor disable on failure and restart in a two-microprocessor
configuration when one microprocessor signals an internal error. When one of the
microprocessors fail, the server will disable the failing microprocessor and restart
with the other microprocessor.
v Nonmaskable interrupt (NMI) detection and reporting.
v Automatic Server Restart (ASR) when POST is not complete or the operating
system hangs and the operating system watchdog timer times-out. The IMM
might be configured to watch for the operating system watchdog timer and reboot
the system after a timeout, if the ASR feature is enabled. Otherwise, the IMM
allows the administrator to generate a nonmaskable interrupt (NMI) by pressing
an NMI button on the system board for an operating-system memory dump. ASR
is supported by IPMI.
v Intelligent Platform Management Interface (IPMI) Specification V2.0 and
Intelligent Platform Management Bus (IPMB) support.
v Invalid system configuration (CNFG) LED support.
v Serial port redirection over telnet or ssh.
v Serial over LAN (SOL).
v Active Energy Manager.
v Query power-supply input power.
v PECI 2 support.
v Power/reset control (power-on, hard and soft shutdown, hard and soft reset,
schedule power control).
v Alerts (in-band and out-of-band alerting, PET traps - IPMI style, SNMP, e-mail).
v Operating-system failure blue screen capture.
v Command-line interface.
v Configuration save and restore.
v PCI configuration data.
v Boot sequence manipulation.
The IMM also provides the following remote server management capabilities:
Chapter 6. Configuring the server 133