chiliGREEN Home Server: Intel Rapid Storage Technology - Manual (Page 34)

9 Verify and Repair
9.1 Overview
Verify and Repair checks a volume for inconsistent or bad data. It may also fix any data problems or parity
errors.
The Verify process happens…
 Automatically after a hard system shutdown or system crash (except when configured for RAID 0)
 Manually when started from within the Intel® Rapid Storage Technology software
The UI displays two functions:
Verify Only
Verify and Repair
9.2 Actions during Verify and Repair
The Verify process checks each stripe rather than copying data. The driver walks through every stripe in the
volume, starting at the lowest logical block address (LBA).
Array Type
Actions
RAID 0 Verify: checks for any read failures.
Repair: can‟t repair since there is not a copy of good data
RAID 1 Verify: checks for data mismatches and read failures
Repair: copies to mirror
RAID 5 Verify: checks for parity issues and read failures
Repair: updates parity; assumes the data is correct and regenerates and rewrites parity
RAID 10 Verify: checks for data mismatches and read failures
Repair: copies to mirror