HP B160L Manual do Utilizador descarregar pdf (Página 66)

PA-RISC Chipsets Cell

Features

 Two system buses 133MHz, each 2.1GB/s peak — aggregate 4.3GB/s (these system buses are

Itanium/Merced system buses)

 Up to four memory buses, each 2.1GB/s peak — aggregate 8.6GB/s bandwidth to the memory (on

the rp7400)

 DEW port converters for attachment of PA-8x00 processors with Runway to the Merced system

bus — up to four DEWs were found in actual systems

 I/O controllers attach to the system bus

 Multiple I/O channel conﬁgurations from the IKE I/O controller(s) supported — each 133MHz

256MB/s with eight, twelve or 22 links found in actual systems (2.1GB/s, 3.2GB/s or 6.4GB/s

aggregate max bandwidth)

References

 hp server rp7400 whitepaper, Hewlett-Packard Company (February 2002, product number 5981-

0154EN) [did not ﬁnd an appropriate URL for this PDF document — Ed.]

 rp7400 Hardware Manual

(PDF) Hewlett-Packard Company (May 2002)

 hp server rp5400 series entry-level UNIX servers technical whitepaper, Hewlett-Packard Com-

pany (August 2002) [did not ﬁnd an appropriate URL for this PDF document — Ed.]

2.4.14 Cell

Used in

 N4000 (rp7405, rp7410)

 Superdome

The Superdome and various smaller systems from HP used a cell-based system architecture or “Central

Electronics Complex” (CEC) which was based on interconnecting individual system/processor cells via

central crossbars. The cell boards were seated in the backplane of the system, which provided the

cell-to-cell links and I/O functionality.

1. Cell controller (CC): the central chipset and crossbar of these systems. One sits at the centre of

each cell board for a maximum of two in the complete system. The CCs provide links for:

 Up to four Processors (8.0GB/s)

 Up to two Memory “banks” (4.0GB/s peak)

 I/O via SBA (cell to I/O communication is 2.0GB/s peak)

 PDH (processor dependent hardware) and ﬁrmware/ﬂash etc.

 Second cell via XBC (cell-to-cell communication is 8.0GB/s peak)

http://docs.hp.com/en/3687/rp7400_customer_hardwaremanual.pdf

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HP B160L Manual do Utilizador Página 66