Using the integrated management moduleThe integrated management module (IMM) is a second generation of the functionsthat were formerly provided by the baseboard management controller hardware. Itcombines service processor functions, video controller, and (when an optionalvirtual media key 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, fanfailure, and power supply failure.v Light path 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 theassociated 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 A virtual media key, which enables remote presence support (remote video,remote keyboard/mouse, and remote storage).v Automatic microprocessor disable on failure and restart in a two-microprocessorconfiguration when one microprocessor signals an internal error. When one of themicroprocessors fail, the server will disable the failing microprocessor and restartwith the other microprocessor.v Nonmaskable interrupt (NMI) detection and reporting.v Automatic Server Restart (ASR) when POST is not complete or the operatingsystem hangs and the operating system watchdog timer times-out. The IMMmight be configured to watch for the operating system watchdog timer and rebootthe system after a timeout, if the ASR feature is enabled. Otherwise, the IMMallows the administrator to generate a nonmaskable interrupt (NMI) by pressingan NMI button on the light path diagnostics panel for an operating-systemmemory dump. ASR is supported by IPMI.v Intelligent Platform Management Interface (IPMI) Specification V2.0 andIntelligent 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.Chapter 3. Configuring the server 117
