User guide

Contents
About This Guide
Text Conventions........................................................................................................ix
Symbols in Text...........................................................................................................x
Symbols on Equipment...............................................................................................xi
Getting Help ...............................................................................................................xi
Compaq Technical Support ................................................................................xii
Compaq Website.................................................................................................xii
Compaq Authorized Reseller..............................................................................xii
Chapter 1
Features
Overview of Features............................................................................................... 1-1
Smart Array 431 Controller.............................................................................. 1-2
Drive Arrays..................................................................................................... 1-3
Fault Tolerance................................................................................................. 1-4
Drive Movement............................................................................................... 1-4
Read-Cache Memory........................................................................................ 1-4
Expanding and Extending Capacity.................................................................. 1-4
Online RAID Level and Stripe Size Migration................................................. 1-5
SCSI Support.................................................................................................... 1-5
Array Configuration Utilities................................................................................... 1-6
Options Rom Configuration for Arrays (ORCA) ............................................. 1-6
Array Configuration Utility (ACU).................................................................. 1-6