Transcript
HP 9000 and HP Integrity Server Input/Output Interface Adapters
QuickSpecs Input/Output Interface Adapters Overview
This chapter describes the HP 9000 and HP Integrity Server input and output interface adapters. Input/output (I/O) interfaces are the crucial links that connect the computer system to its external peripheral devices, and connect two or more computer systems together. Interface adapters are specified by their technology (for example, SCSI, Token Ring, etc.) and by their bus type (PCI-X, PCI, HSC, etc.). Hewlett Packard provides a variety of interface backplane buses in its HP UNIX servers, including PCI-X, PCI, HSC, HP-PB, and EISA.
Mass Storage Adapters-SCSI, Fibre Channel, and RAID Mass storage adapters connect the computer system to mass storage devices such as disks, tapes, and RAID systems. HP 9000 and HP Integrity servers support SCSI, Fibre Channel, and RAID I/O adapters, but not all servers support all adapter types. See the Storage Adapter QuickSpec to determine which servers support which mass storage adapters, and for details of mass storage adapters.
Networking Adapters-LAN, WAN, ACC Hewlett Packard offers a number of high speed, high performance LAN and WAN networking solutions for use with HP 9000 and HP Integrity servers.
Multi function Adapters-Mass Storage/LAN Combination Cards Combination adapters combine two or more I/O functions on a single card.
Multiplexers, Secure Socket Layer (SSL) Accelerators Multiplexers combine a number of messages simultaneously over the same communications channel. A de-multiplexer completes the process by separating multiplexed signals from a transmission line. Frequently a multiplexer and de-multiplexer are combined into a single device capable of processing both outgoing and incoming signals. Secure Socket Layer Accelerator provides a hardware performance and data protection solution to the problem of Secure Socket Layer computation.
Bus Types PCI-X The PCI-X (Peripheral Component Interconnect) bus has increased bandwidth versus the standard PCI bus. PCI-X systems and devices can operate at clock rates up to 133-MHz or 1-gigabyte per second (1-GB/s). PCI-X is backwards compatible with PCI meaning; 1) PCI I/O adapters can be used in PCI-X slots and 2) PCI-X I/O adapters can be used in PCI slots. The possible PCI-X bus configurations are 32 bit/33-MHz, 32 bit/66-MHz, 64 bit/33-MHz, 64 bit/66MHz, and 64-bit/133-MHz. The PCI-X bus is available on HP Integrity servers.
PCI PCI (Peripheral Component Interconnect) is intended for use as an interconnect mechanism between highly integrated peripheral controller components, peripheral add in boards and processor/memory systems. It permits direct connect of high performance controllers, (i.e. SCSI, IDE, LAN, Graphics, etc.) thereby providing high bandwidth data throughput. The PCI adapter is based on the 3×5 Form Factor. The possible PCI bus configurations are 32 bit/33 MHz, 32 bit/66 MHz, 64 bit/33 MHz, and 64 bit/66 MHz. The PCI bus is available on Superdome, HP Server rp8400, HP Server rp7410, HP Server rp5400 Series, and HP Server rp2400 Series.
HSC HSC (High Speed Connect) is a Hewlett Packard proprietary high speed interface positioned between PCI and HP-PB in performance. The HSC bus is available on the K- and T-Class servers.
EISA Form Factor HSC EISA Form Factor, also referred to as eff HSC or EISA FF, is an HSC bus on an EISA-style card. The HSC adapter for the D-Class server is based on the EISAFF with the wider bulkhead (different faceplate). This bus is available on D-Class and R-Class servers.
HP-PB HP-PB (Hewlett Packard Precision Bus) is intended for less demanding I/O interface speed applications. It is one of the busses available on the K- and TClass servers.
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HP 9000 and HP Integrity Server Input/Output Interface Adapters
QuickSpecs
EISA EISA (Extended Industry Standard Architecture) is a 32-bit extension for the ISA or AT bus to integrate the 80386/80486 32 bit processors. The EISA standard is available on the D- and R-Class servers. Due its distance from the processor/memory bus, the EISA bus does not deliver the performance of the HSC bus. The following table lists the Storage devices by server platform and bus type. NOTE: The following table is intended as a general overview of technology by platforms and bus type Technology by Platforms and Bus Type Server
HP Integrity
Superdome, rp8400, rp7410, rp5400 series, rp2400 series
K Class
D-Class, R-Class, K-Class A180
D-Class, R-Class
I/O Bus Technology
PCI-X
PCI
HSC
eff HSC
EISA
HP PB
© Copyright 2003-2004 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
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