The IBM eServer pSeries 655 (7039-651) is the latest in a family of products within IBM's UNIX, 64-bit, symmetric multiprocessing (SMP) servers. The pSeries 655 offers a super-dense package (up to 128 processors in a single frame), ideal for many high-performance computing and business intelligence applications.

Based on IBM's leadership POWER4 Technology, the p655 is designed for medium to large customers whose workloads are best managed with a clustered server solution.

Packaged in scalable, single multi-chip module (MCM)-based thin nodes, within a half-drawer, 4U form factor, up to sixteen p655s can be installed within a frame, capable of delivering over 1/2 peak TFlop of clustered performance within that single frame.

With PSSP, over 10 years of cluster management technology is delivered to the p655. You benefit from leadership administration at lower costs.

The p655 server can be interconnected to the SP Switch2 fabric using the SP Switch2 PCI-X adapter as a stand-alone cluster, or as an additional building block of the IBM eServer Cluster 1600.

The p655 can be partitioned into four Logical Partitions (LPARs), either switched or non-switched for greater flexibility.

Within the 7040-W42 frame for the p655, the 7040-61D I/O drawer offers expansion of up to 20 blind-swap PCI bus slots and up to 16 additional Ultra3 SCSI disks per server that can be hot-plugged.

The IBM eServer Cluster 1600 is enhanced to include the p655 server within the available cluster building blocks. This new server is now available as both an initial option and a field addition to the IBM eServer Cluster 1600.