2
IBM
Eserver
xSeries 455 Planning and Installation Guide
1.1 Features
The following are the key features of the x455:
One-way or two-way Intel Itanium 2 models, upgradable to 4-way in a single
node and 16-way in a 4-node partition.
64 MB XceL4 Server Accelerator Cache providing an extra level of cache,
upgradeable to 256 MB in a 4-node partition.
1 GB or 2 GB RAM standard, upgradeable to 56 GB in a single node and 224
GB in a 4-node partition. Available options are 512 MB, 1 GB, and 2 GB ECC
DDR SDRAM RDIMMs.
Memory enhancement such as memory mirroring, Chipkill™, Memory
ProteXion, and hot swap.
Dual channel Ultra320 SCSI/RAID controller.
Six 64-bit Active PCI-X slots: Two 133 MHz, two 100 MHz, and two 66 MHz,
upgradeable to 24 x 64-bit PCI-X slots in a four-node partition.
Scalable system partitioning in two-node and four-node configurations via
three scalability ports.
Connectivity to an RXE-100 external enclosure for an additional 12 PCI-X
slots, upgradeable to 24 additional PCI-X slots in a 4-node partition.
Two hot-swap 1-inch drive bays, upgradeable to eight in a four-node partition.
Support for major storage subsystems, including SCSI and Fibre Channel.
Light path diagnostics for troubleshooting.
Remote Supervisor Adapter (RSA) for systems management and remote
diagnostics.
Integrated dual 10/100/1000 Mbps Ethernet controller.
Integrated ATI Rage XL with 8 MB video RAM.
Three USB ports and one serial port.
Two 1050 W hot swap power supply.
24x combination DVD/CD-RW drive.
4U x 26” rack drawer design.
1.1.1 Comparing the x455 with the x450
The x455 builds on the proven and popular x450 and brings a number of
enhancements. Table 1-1 on page 3 summarizes the differences and
enhancements between the two servers.
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