On Sun, Feb 28, 2010 at 02:37:13PM -0800, John R Pierce wrote:
And how do I know all these mirror data mismatches are Swap? does not each mismatch mean the mirrors disagree, which means one of them is wrong. Which one? since they aren't timestamped or checksummed (like
This thread is very timely. I updated my C5.3 to 5.4 last week (not sure why it took me so long) and this morning noticed my raid5 was resyncing. 5*1Tbyte disks. The resync took... Feb 28 04:22:02 mercury kernel: md: syncing RAID array md3 Feb 28 16:27:06 mercury kernel: md: md3: sync done.
Performance was bad during this time. Not terrible from an interactive point of view, but a job that normally run from 4am to 10am didn't finish until 3pm.
I like the concept of checking the disks are good, but it really sounds like there are practical problems (false positives, performance degregation) .
So I think /etc/sysconfig/raid-check is going to read ENABLED=no