Timothy Renner wrote:> http://forums.freebsd.org/archive/index.php/t-1197.html
>
> Is a fairly good writeup on this subject... The short and sweet: One
> disk in a non-mirrored pool dies and is replaced with a new disk...
>
Actually, the demo shows how you can corrupt a portion of the data
and ZFS tries to recover. This is a very different failure mode than a
disk completely dying.
> It looks like zpool scrub is able to recover from an error of this
> magnitude, but getting it to import in the first place requires a bit of
> hackery and some saved information... I''m curious if there are
future
> plans to allow forced importing of a damaged set of disks such as this
> so that they can be scrubbed and recovered. Also if ZFS will allow a
> forced import *without* a replacement... And will that be part of disk
> removal per future release (In the FAQ):
> http://opensolaris.org/os/community/zfs/faq/#deviceremoval
>
>
There are RFEs open for improving the ability to do forensic
recovery, but I don''t know anything about the schedule.
-- richard