On Wed, 6 Apr 2011, rob pfile wrote:
Hi all,
any collective wisdom on what to do here? i've got a 4-disk raid5, and
the most recent checkarray showed several bad blocks caused by
uncorrectable read errors on two of the disks in the array. both disks
in question show 0 reallocated sectors, but one looks like this:
Generally I'd recommend a "repair" as it would try to read all, if it
can't read it properly, it'd recalculate from parity and as long as that
write succeeded, you'd be golden.
To be safe, stop the array, dd_rescue the two bad drives, start the array
again with the originals in the array, don't mount the filesystem,
issue repair and see what happens.
This is one reason why I nowadays always run RAID6, then you can fail a
drive and still have parity for read errors...
--
Mikael Abrahamsson email: swmike@xxxxxxxxx
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