Specifications
HP 9000 rp8440 Server architecture
The HP 9000 rp8440 Server architecture builds on that of the HP 9000 rp7440 Server with the
addition of a crossbar backplane and two more cell boards. The crossbar backplane provides a non-
blocking connection between up to four cells, plus a connection to the external I/O resources in the
HP SEU-2. Similarly to the HP 9000 rp7440 Server, the HP 9000 rp8440 Server can be configured
as one 1- to 16-processors system, or it can be divided into smaller independent nPars. The HP 9000
rp8440 Server can be divided into four hardware-isolated partitions when connected to the SEU-2.
Figure 5. Architecture block diagram of the HP 9000 rp8440 Server, showing the modularity of the system
All hot- plug
8 PCI-X I/O s lots
I/O controller
I/O controller
8 PCI-X I/O s lots
PCI Backplane
System crossbar
backplane
Core I/O
Core I/O
Core I/O
Core I/O
Core I/O
Core I/O
disks
P eripheral bay
Bulk
power
supply
Processor
Mem ory
Cell board
Cell
controller
Processor
Processor Processor
ProcessorProcessor
Mem ory
Mem ory
Cell board
Cell
controller
Cell
controller
Processor Processor
Processor Processor Processor Processor
Crossbar chips
Processor
Mem ory
Cell board
Cell
controller
Processor
Processor Processor
Processor Processor
Mem ory
Mem ory
Cell board
Cell
controller
Cell
controller
Processor Processor
Processor Processor Processor Processor
Processor
Mem ory
Cell board
Cell
controller
Processor
Processor Processor
ProcessorProcessor
Mem ory
Mem ory
Cell board
Cell
controller
Cell
controller
Processor Processor
Processor Processor Processor Processor
Processor
Mem ory
Cell board
Cell
controller
Processor
ProcessorProcessor
Processor Processor
Mem ory
Mem ory
Cell board
Cell
controller
Cell
controller
Processor Processor
ProcessorProcessorProcessor Processor
Out to S E U
HP Super-Scalable Processor Chipset sx2000
The HP sx2000 is the HP enterprise class chipset that provides more than twice the memory
bandwidth and over four times the I/O and fabric bandwidths of the sx1000 chipset, along with
significant reductions in systems latencies. This increased capabilities of the HP sx2000 in
combination with the Dual-Core PA-8900 processors delivers significantly greater performance for
your applications. All sx2000 systems use error correcting and self-healing technologies throughout to
reduce hardware outages. Unique technologies include Double Chip Spare (DCS), which immediately
restores chip-spare protection after a DRAM has failed and protects against the majority of memory
buffer and data bus failures, and link self-healing, which recovers from any connector, backplane, or
cable failure without loss of performance.
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