User guide

Contents
About This Guide
Text Conventions........................................................................................................ix
Symbols in Text...........................................................................................................x
Symbols on Equipment................................................................................................x
Rack Stability .............................................................................................................xi
Getting Help ...............................................................................................................xi
Compaq Technical Support ............................................................................... xii
Compaq Website................................................................................................ xii
Compaq Authorized Reseller.............................................................................xiii
Chapter 1
Introduction
Features.................................................................................................................... 1-2
Front Panel Features ................................................................................................ 1-4
Rear Panel Features ................................................................................................. 1-5
Hot-Pluggability ...................................................................................................... 1-5
Hot-Pluggable Drives .............................................................................................. 1-6
Maximum Storage ................................................................................................... 1-6
SCSI ID Assignments.............................................................................................. 1-6
Compaq StorageWorks RA4000 Controller ............................................................ 1-6
Features............................................................................................................. 1-7
Hard Drive Arrays............................................................................................ 1-7
Fault Tolerance................................................................................................. 1-8
Capacity Expansion.......................................................................................... 1-8
Array Accelerator ............................................................................................. 1-9
Performance Monitoring................................................................................. 1-10
Automatic Performance Tuning...................................................................... 1-10
Tagged-Command Queuing............................................................................ 1-10
System Power................................................................................................. 1-10
Redundant Power Supply....................................................................................... 1-11