[zfs-discuss] ZFS pool dramatic loss :-(
gregor at kopka.net
Mon Jan 20 15:52:03 EST 2014
(sorry, accidental sent before done typing)
A really good plan for recovery:
1. make a copy of one of the disks (using dd) onto a new (in terms as
'currently empty and not otherwise used') disk
disconnect original disks
2. make a copy of the copy on yet another new disk
disconnect disk from 1.
3. test obscure flags / methods for recovery on the media obtained from 2.
4. if 3 fails: goto 2
5. should you get your pool contents back wipe the old drives
partitions and /attach ///them to the pool obtained from 3
wait for resilver
(if needed) reinstall bootloader on your original disks
detach drive from 3.
With this you can test things /and/ fail without painting yourself into
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