Re: [CentOS] puzzling md error ?

John R Pierce wrote:

Clint Dilks wrote:

...

SWAP inside LVM is fine in my experience. Personally I consider this a benign error and generally ignore it unless the mismatch count is very high

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 vxvm, zfs do), I am playing 'data maybe'. As someone who adminstrates database servers, i have a real problem with that.

Turn off the swap and see if the problem goes away. Or move the swap somewhere else than the software RAID and, again, see if the problem goes away. It isn't that hard to localize.