What Your Ls20 Type 8850 Blade Server Offers - IBM LS20 - BladeCenter - 8850 Installation And User Manual

What your LS20 Type 8850 blade server offers

The design of the blade server takes advantage of advancements in memory
management and data storage. The blade server uses the following features and
technologies:
v Disk drive support
v IBM Director
v Impressive performance using the latest microprocessor technology
v Integrated network support
v I/O expansion
v Large system memory
v Light path diagnostics
v Power throttling
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AMD Opteron LS20 Type 8850 for IBM BladeCenter: Installation and User's Guide
The blade server supports up to two 2.5 inch SCSI disk drives. For the
BladeCenter T unit, the SCSI controller is able to interface to the solid-state flash
hard disk drives.
IBM Director is a workgroup-hardware-management tool that you can use to
centrally manage servers. For more information, see the IBM Director
documentation on the IBM Director CD.
The blade server supports up to two AMD Opteron microprocessors. Depending
on the model, the blade server comes with either one or two microprocessors
installed. For models equipped with one factory-installed microprocessor, an
optional microprocessor can be added.
The blade server comes with two integrated dual Gigabit Ethernet controllers.
Each Ethernet controller has an interface for connecting to 10/100/1000-Mbps
networks through an Ethernet-compatible switch module on the BladeCenter unit.
The blade server automatically selects between 10BASE-T and
100/1000BASE-TX environments. Each controller provides full-duplex (FDX)
capability, which enables simultaneous transmission and reception of data on the
Ethernet local area network (LAN). The controllers support Wake on LAN
technology.
The blade server comes with connectors on the system board for an optional
expansion card, such as the Fibre Channel expansion card, for adding more
network communication capabilities to the blade server.
As of the date of this publication, the memory bus in the blade server supports
up to 8 GB of system memory, typically 4 GB per microprocessor. The memory
controller provides support for up to four industry-standard 2.6 V, 184-pin,
double-data-rate (DDR1), PC3200, very low profile (VLP), registered synchronous
dynamic random-access memory (SDRAM) with error correcting code (ECC)
DIMMs. For the most current list of supported DIMMs, see the ServerProven
at http://www.ibm.com/servers/eserver/serverproven/compat/us/.
The light path diagnostics feature provides light-emitting diodes (LEDs) to assist
in isolating problems with the blade server. An LED on the blade server control
panel is lit if an unusual condition or a problem occurs. If this happens, you can
look at the LEDs on the system board to locate the source of the problem.
Each blade server is powered by two BladeCenter redundant power-supply
modules. By enforcing a power policy known as power domain oversubscription,
the BladeCenter unit can share the power load between two power modules to
ensure efficient power for each device in the BladeCenter unit. This policy is
enforced when the initial power is applied to the BladeCenter unit or when a
blade server is inserted into the BladeCenter unit.
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