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v Redundant cooling and power capabilities
The redundant cooling and hot-swap capabilities of the fans in your server
enable continued operation if one of the fans fails. You can also replace a failing
fan without turning off the server.
The server comes with two 370-watt power supplies. You can install additional
370-watt power supplies to ensure redundancy and hot-swap capability for typical
and full configurations.
v Large system memory
The memory bus in your server supports up to 12 GB of system memory. The
memory controller provides error correcting code (ECC) support for up to 12
industry-standard, 2.5 V, 184-pin, 72-bit, 100 MHz, double-data-rate (DDR),
PC1600, registered synchronous dynamic random-access memory (SDRAM)
dual inline memory modules (DIMMs). The memory controller also provides
Chipkill
™
Memory protection. Chipkill Memory protection is a technology that
protects the system from a single chip failure on a DIMM.
Your server supports the Hot Spare Memory feature. For details on how to
enable this feature, see the Core Chipset Control menu choice under the
Advanced Setup menu description in “Choices available from the
Configuration/Setup Utility main menu” on page 14.
v IBM integrated system management processor (ISMP)
The integrated system management processor provides environmental monitoring
for your server. When environmental conditions exceed thresholds or when
system components fail, the ISMP lights the Light Path Diagnostics
™
LEDs to
indicate the location of the problem. Critical errors are also included in the error
log. In addition, the ISMP provides Predictive Failure Analysis
®
(PFA) alerts on
the microprocessors, memory, voltage regulator modules (VRMs), fans, power
supplies, and hard disk drives in the server.
If you have an optional Remote Supervisor Adapter installed on your Advanced
System Management (ASM) interconnect network, you can view the system
health; update the ISMP code; turn on, turn off, and restart the server; view the
error log; view the vital product data (VPD); and send alerts over the ASM
interconnect network. To order an optional Remote Supervisor Adapter, contact
your IBM reseller or IBM marketing representative.
v Integrated network environment support
Your server comes with an Ethernet controller on the system board. This
Ethernet controller has an interface for connecting to 10-Mbps, 100-Mbps, or
1000-Mbps networks. The server automatically selects among 10BASE-T,
100BASE-TX, and 1000BASE-T. The controller provides full-duplex (FDX)
capability, which enables simultaneous transmission and reception of data on the
Ethernet local area network (LAN).
v Redundant network adapter
The addition of an optional redundant network adapter provides a failover
capability to a redundant Ethernet connection. If a problem occurs with the
primary Ethernet connection, all Ethernet traffic associated with this primary
connection is automatically switched to the redundant network adapter. If the
appropriate device drivers are installed, this switching occurs without data loss
and without user intervention.
v IBM ServerGuide CD
The ServerGuide CD that is included with your server provides programs to help
you set up your server and install the network operating system (NOS). The
ServerGuide program detects the installed hardware options and provides the
correct configuration programs and device drivers.
Chapter 1. Introducing the xSeries 255 Type 8685 server 5