[CentOS] Resync raid1 from disk with unreadable sectors

Eero Volotinen eero.volotinen at iki.fi
Thu Mar 4 11:50:32 UTC 2010

2010/3/4 Mindaugas Riauba <ml at kilimas.com>:
>  Hello,
>  After some fiddling with the server now I have broken RAID1 with the
> "current" mirror on the disk with few unreadable sectors. If I try to
> re-add other disk to the mirror resync goes till those bad sectors and
> then starts from the beginning. And so on.
>  Is it possible to somehow force resync to continue even after errors?
>  Manual resync with dd would require a bit too long downtime. If it
> is impossible to force resync I'll probably manually rsync all the
> files from the old broken disk to the new one.

how about dd_rescue from disk to another? It is insane to try to sync
nonworking raid array.


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