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Windows software mirroring - way to speed up rebuild
I have a Windows 2008 server with two drives that are software mirrored. After a recent power outage the drives were out of synch when the server came back up on power restore and automatically they started to resynch. The drives are large and the synching is taking a long time and the system is slowed down as a result. Is there any parameter that can be configured to speed up the resynching? Please note that I understand that a hardware RAID would do this kind of thing faster but at this point I do not need suggestions which would involve that as a solution. I am looking only for any suggestions that would speed up software mirroring.
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David
Agreed, power failures will rarely break a mirror, but they will certainly generate, ECC errors, unrecoverable read errors, inconsistencies, stale drive shutdowns. It is quite common that some clusters of "bad" blocks will show up. If the rebuild process appears to halt for a few seconds to a minute, you hit one of them. Unless both disks have problems reading the same physical block number, then nothing you can do on the windows side. The recovery is a function of the drive hardware specs, not windows
ASKER
The mirrored drives were 1 TB and the system restarted just before people got to work so the re-synching had already started and it was slowing people down but after a few hours it seemed to go faster and it was less noticeable. If I would have had a chance I would have started the server without mirroring and then done it after hours.