Yes, you can usually get your data back with mdadm.
With latest code, a URE during recovery will cause a bad-block to be recorded
on the recovered device, and recovery will continue. You end up with a
working array that has a few unreadable blocks on it.
NeilBrown
This is very good news :)
I case of parity RAID I assume the entire stripe is marked as bad, but
with mirror (eg: RAID10) only a single block (often 512B) is marked bad
on the recovered device, right?
From what mdadm/kernel version the new behavior is implemented? Maybe
the software RAID on my CentOS 6.5 is stronger then expected ;)
Regards.
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