User guide

viii Compaq Smart Array 431 Controller User Guide
Appendix F
Recovering from Drive Failure
Recognizing a Drive Failure ....................................................................................F-1
Fault Tolerance and Drive Failure ...........................................................................F-2
A Non-Fault-Tolerant (RAID 0) Logical Drive................................................F-2
A RAID 1 (Mirroring) Logical Drive ...............................................................F-2
A RAID 5 (Distributed Data Guarding) Logical Drive.....................................F-3
Spare Drives......................................................................................................F-3
Replacing a Failed Drive..........................................................................................F-4
Automatic Data Recovery.................................................................................F-4
Automatic Data Recovery Failure.....................................................................F-5
Compromised Fault Tolerance.................................................................................F-5
Appendix G
POST Error Messages
Appendix H
Questions and Answers
Index