Hitachi HF-W2000 58 Instruction Manual page 41

CHAPTER 10 SOFTWARE RAID1 ......................................................................
10.1 Overview of Software RAID1 ........................................................................................................................... 10-1
10.1.1 What is software RAID1? ........................................................................................................................... 10-1
10.1.2 Features of RAID1 ...................................................................................................................................... 10-3
10.2 Setup .................................................................................................................................................................. 10-4
10.2.1 Overview of Setup ...................................................................................................................................... 10-4
10.2.2 Setting up a new RAID1 configuration ....................................................................................................... 10-4
10.3 Checking the RAID1 Status ............................................................................................................................... 10-5
10.3.1 Checking by using the status lamps ............................................................................................................ 10-5
10.3.2 Checking by using the Hardware status window ........................................................................................ 10-6
10.3.3 Checking by using the software RAID utility ............................................................................................. 10-8
10.4 Recovering from a Failure ................................................................................................................................. 10-9
10.4.1 Detecting a failure ....................................................................................................................................... 10-9
10.4.2 Recovery from a failure in one HDD ........................................................................................................ 10-10
10.4.3 Recovery from a power failure while the system is operating .................................................................. 10-18
10.4.4 When a problem occurs during recovery .................................................................................................. 10-19
10.4.5 Recovery from a failure in both HDDs ..................................................................................................... 10-20
10.4.6 Recovering a normal HDD that was set to offline by mistake .................................................................. 10-20
10.5 Preventive Maintenance ................................................................................................................................... 10-21
10.5.1 Creating a backup HDD ............................................................................................................................ 10-21
10.5.2 Recovery by using a backup HDD ............................................................................................................ 10-22
10.5.3 Periodically replacing HDDs .................................................................................................................... 10-23
10.5.4 Data matching ........................................................................................................................................... 10-25
10.6 Software RAID Utility ..................................................................................................................................... 10-26
10.6.1 Overview of the software RAID utility ..................................................................................................... 10-26
10.6.2 Starting and exiting the software RAID utility ......................................................................................... 10-27
10.6.3 Status display feature ................................................................................................................................ 10-29
10.6.4 Rebuilding feature ..................................................................................................................................... 10-30
10.6.5 Consistency check feature ......................................................................................................................... 10-34
10.6.6 Array creation feature ............................................................................................................................... 10-39
10.6.7 Drive initialization feature ........................................................................................................................ 10-41
10.6.8 List of error messages ............................................................................................................................... 10-44
APPENDIX HANDLING OF REPLACEABLE COMPONENTS ........................
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