I've recently built a smallish RAID5 box as a storage area for my home
network, using mdadm. However, one of the drives will not remain in the
array for longer that around two days before it is removed. Readding it
to the array does not throw any errors, leading me to believe that it's
probably a problem with the controller, which is an add-in SATA card, as
well as the other drive connected to it failing once.
I don't know how to scan the one disk for bad sectors, stopping the
array and doing an fsck or similar throws errors, so I need help in
determining whether the disc itself is faulty.
If the controller is to be replaced, how would I go about migrating the
two discs to the new controller whilst maintaining the array?
Thanks in advance
Tom Bradshaw
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