Uefi; Integrated Management Module - IBM x3850 X6 Planning And Implementation Manual

For more information, see the following reference:
The Benefits of IBM FlashCache Storage Accelerator in the Enterprise Solutions,
REDP5080
http://www.redbooks.ibm.com/abstracts/redp5080.html?Open

2.7 UEFI

The Unified Extensible Firmware Interface (UEFI) is a pre-boot environment that provides an
interface between server firmware and operating system. It replaces BIOS as the software
that manages the interface between server firmware, operating system and hardware
initialization, and eliminates the 16-bit, real-mode limitation that BIOS had.
The main advantages of UEFI are as follows:
It uses 64-bit code architecture, with no restrictions for code size.
It offers a modular design; adapter vendors can add any functions in ROM.
An adapter configuration can move into F1 Setup.
There are no beep codes; all errors are covered by light path diagnostics.
There are human readable Event logs in F1 Setup.
UEFI Settings can be accessed Out of Band via the IBM Advanced Setup Utility (ASU)
through the IMM web interface.
UEFI Code Updates can be performed in band through the operating system, and out of
band through the IMM web interface.
You can obtain more information about UEFI at the following web site:
http://www.uefi.org/home/

2.8 Integrated Management Module

The Integrated Management Module II (IMM2) is the next generation of the IMM service
processor, which provides advanced control and monitoring features to manage an x3850 X6
server. IMM2 enables easy console redirection with text and graphics, and keyboard and
mouse support over the system management LAN connections.
This feature allows the user to display server activities from power-on to full operation
remotely, with remote user interaction, at virtually any time.
IMM2 monitors the following components:
System voltages
System temperatures
Fan speed control
Fan tachometer monitor
Good Power signal monitor
System ID and planar version detection
System power and reset control
Non-maskable interrupt (NMI) detection (system interrupts)
SMI detection and generation (system interrupts)
Serial port text console redirection
System LED control (power, HDD, activity, alerts, and heartbeat)
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IBM System x3850 X6 and x3950 X6 Planning and Implementation Guide