IBM eserver xSeries 440, User Manual

Page: 17 / 84

Chapter 1. Introducing the IBM xSeries 440
5
What your IBM xSeries 440 offers
The design of your server takes advantage of advancements in memory management
and data storage. Your server includes:
• IBM Enterprise X-Architecture
Enterprise X-Architecture is an IBM design blueprint that takes full advantage of
existing IBM technologies to build the most powerful, scalable, and reliable Intel
processor-based servers. For more information about IBM Enterprise X-
Architecture, refer to
http://www.ibm.com/pc/us/eserver/xseries/xarchitecture/enterprise/index.html
• Active
™
Memory
Memory Mirroring offers even greater memory reliability. With the same amount of
memory in both memory ports and Memory Mirroring enabled in BIOS code, the
data from the first memory port is copied or mirrored in the second, giving you
redundant copies of the information stored in memory.
• Memory ProteXion
™
This is the equivalent of a hot-spare drive in a RAID array. Memory ProteXion is
based in the memory controller, giving your server the ability to sense when a chip
on a DIMM has failed and route the data around the failed chip.
• Large system memory
The memory bus in your server supports up to 32 GB of system memory. The
memory controller provides error code correction (ECC) support for up to 32
industry-standard PC133, 3.3 V, 168-pin, 133 megahertz (MHz), registered,
synchronous dynamic random access memory (SDRAM) dual inline memory
modules (DIMMs).
• XceL4
™
Server Accelerator Cache
With up to 64MB of high-performance level-4 system cache, the xSeries 440
introduces XceL4 cache, designed by IBM specifically to alleviate the memory
bandwidth demands that the new Intel processors place on the memory
subsystem. XceL4 Server Accelerator Cache also enables speedier access to
memory for the PCI-X I/O, Gigabit Ethernet, SCSI and Fibre Channel interfaces,
yielding better overall system utilization, and therefore higher throughput.
• Light Path Diagnostics
The Light Path Diagnostics feature provides LEDs to assist in isolating problems
with the server. A light on the operator information panel is lit if an unusual
condition or a problem occurs. If this happens, you can look at the LEDs inside the
Light Path Diagnostic drawer and those visible through the cover to isolate the
cause. Under some circumstances, you might need to remove the cover and view
LEDs on the printed circuit boards to pinpoint the source of a problem.
• Systems management capabilities
The server comes with a Remote Supervisor Adapter installed in a dedicated
PCI-X slot. This adapter, in conjunction with the systems-management software
provided with the server, enables you to manage the functions of the server both
locally and remotely. The Remote Supervisor Adapter also provides system
monitoring, event recording, and dial-out alert capability.