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CHAPTER 10 SOFTWARE RAID1
.................................................................. 10-1
10.1 Overview of Software RAID1 ......................................................................................... 10-1
10.1.1 What is software RAID1? .......................................................................................... 10-1
10.1.2 Functions of software RAID1 .................................................................................... 10-3
10.2 Setup ................................................................................................................................ 10-4
10.2.1 Overview of setup ...................................................................................................... 10-4
10.2.2 Newly setting up RAID1 ........................................................................................... 10-4
10.3 Checking the Status of the Software RAID1 ................................................................... 10-5
10.3.1 Checking by the Status Lamps .................................................................................. 10-5
10.3.2 Checking by the Hardware Status Window ............................................................... 10-6
10.3.3 Checking by the Software RAID1 utility .................................................................. 10-7
10.4 Recovery from Failure ..................................................................................................... 10-8
10.4.1 Detecting a failure ...................................................................................................... 10-8
10.4.2 Recovery from a failure in one HDD ........................................................................ 10-9
10.4.3 Recovery from power failure during operation of the system ................................. 10-17
10.4.4 When a problem occurs during recovery work ........................................................ 10-18
10.4.5 Recovery from Failure in Both HDDs ..................................................................... 10-19
10.4.6 Recovery a normal HDD that has been set to offline by mistake ............................ 10-19
10.5 Preventive Maintenance ................................................................................................... 10-20
10.5.1 Creating a Backup HDD .......................................................................................... 10-20
10.5.2 Recovery Using a Backup HDD .............................................................................. 10-22
10.5.3 Performing Periodical HDD Replacement .............................................................. 10-23
10.5.4 Data matching procedure ......................................................................................... 10-25
10.6 Software RAID1 Utility ................................................................................................... 10-26
10.6.1 Overview of software RAID utility ......................................................................... 10-26
10.6.2 Starting and exiting the software RAID utility .......................................................... 10-27
10.6.3 Status display function ............................................................................................. 10-29
10.6.4 Rebuilding function ................................................................................................. 10-30
10.6.5 Consistency check function ..................................................................................... 10-34
10.6.6 Array creation function .............................................................................................. 10-38
10.6.7 Drive initialization function ..................................................................................... 10-40
10.6.8 List of error message ............................................................................................... 10-43
APPENDIX HANDLING REPLACEABLE COMPONENTS .......................... A-1
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