Compaq ProLiant 8500 Technology Brief

High-Performance Technologies ..................... ...

2 TC000604TB ................................................................................................................................................................. NOTICE The information in this publication is subject to change without notice and is provided “AS IS” WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK ARISIN ...

3 TC000604TB ................................................................................................................................................................. INTRODUCTION In today’s business environment, enterprise customers require powerful servers with fault-tolerant features to keep their businesses running 24 h ...

4 TC000604TB ................................................................................................................................................................. ProLiant 8500 Architecture The system architecture is the key to the high level of performance offered by the ProLiant 8500 server. Compaq worked closely with ...

5 TC000604TB ................................................................................................................................................................. Profusion Chipset At the heart of the 8-way architecture is the Profusion chipset. The chipset uses a five-point crossbar switch (Figure 2) to connect processo ...

6 TC000604TB ................................................................................................................................................................. Processor bus Cache Accelerator Processor bus address data address data Memory Array Memory Array I/O bus data address A A D D Memory Access Controller (MAC) D ...

7 TC000604TB ................................................................................................................................................................. The memory subsystem uses uniform memory access, which reduces latency and gives all processors equal access times to either memory bus. In systems using nonun ...

8 TC000604TB ................................................................................................................................................................. Compaq Host-to-PCI Bridges The Compaq host-to-PCI bridges included in the ProLiant 8500 server were engineered to enhance performance of the Profusion chipset. ...

9 TC000604TB ................................................................................................................................................................. PCI Hot Plug Technology The host-to-PCI bridges include electronics to support PCI Hot Plug technology, which was pioneered by Compaq. PCI Hot Plug technology ...

10 TC000604TB ................................................................................................................................................................. Pentium III Xeon Processor Technology The Pentium III Xeon processor is based on the Pentium II Xeon processor cartridge form factor. The Pentium III Xeon proc ...