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Table of Contents
Preface................................................................................................................... i
Chapter 1 Overview
Features ................................................................................................................2
Understanding RAID .............................................................................................3
NRAID ..............................................................................................................3
Just a Bunch Of Disks ......................................................................................3
RAID Levels .....................................................................................................3
Hot Spare Disks ...............................................................................................6
RAID Combinations ..........................................................................................6
Summary of RAID Levels .................................................................................7
System Requirements ...........................................................................................8
Operating Environment ....................................................................................8
VT100 Terminal Settings ..................................................................................8
Host Interface ...................................................................................................9
Hard Disks ........................................................................................................9
Chapter 2 Basic Configuration
Unpacking ...........................................................................................................11
Components ........................................................................................................12
Closed Front Panel .........................................................................................12
Open Front Panel ...........................................................................................13
Disk Tray ........................................................................................................14
ERQ12-U4R2 Rear View ................................................................................15
ERQ12-F2R2 Rear View ................................................................................16
Installing Disks ....................................................................................................17
Making Connections ...........................................................................................19
Connecting the Host Interface ........................................................................19
Connecting a network .....................................................................................21
Connecting and Turning on the Power ...........................................................22
Mounting in a Rack .............................................................................................23
Installing the Rail Extenders ...........................................................................24
Chapter 3 Maintenance
Replacing a Disk .................................................................................................25
Replacing a Power Supply ..................................................................................26
Upgrading Memory .............................................................................................28
Appendix
Hardware Specifications .....................................................................................31