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1-4
Introduction
Writer:
Don Shimel
Project:
Introduction
Comments:
File Name:
D-CH1.DOC
Last Saved On:
3/11/97 11:23 AM
Options
The following options are available for your ProLiant Storage System and may
be obtained from your local Compaq Reseller or Authorized Compaq Service
Provider.
Fast-Wide Duplexing Option Kit
Compaq Part Number 199614-001
Duplexing, or Controller Duplexing, refers to the technique of simultaneously
recording two sets of identical data (duplexing) using two completely separate
data paths. This provides total data protection through data mirroring (RAID
1). Because the entire data path is duplicated, a second SCSI controller, along
with its associated SCSI bus, is required. The two SCSI controllers need not be
in the same server.
A ProLiant Fast-Wide Duplexing Option Kit is available to divide the seven
drive bays on the single wide SCSI bus in the ProLiant Storage System into two
separate wide SCSI buses of four drives and three drives. This enables:
■
Separate controllers to implement advanced fault tolerant data protection
methods
■
Two servers to share the same storage system
The Duplexing Option may be installed by the user or by your Authorized
Compaq Service Provider. Installation instructions for the Duplexing Option
are included in the Fast-Wide Duplexing Option Kit and in Chapter 6 of this
guide.
