Am 03.06.2016 um 20:34 schrieb Jordan Hubbard: > >> On Jun 3, 2016, at 10:56 AM, esamorokov <esamoro...@gmail.com >> <mailto:esamoro...@gmail.com>> wrote: >> >> I AM KINDLY ASKING FOR HELP! The pool had all of the family >> memories for many years Thanks in advance! > > 4. You evidently also created a new new pool with one of the drives, > so now ZFS is well and truly confused and you’re only further away > from salvation. > > I don’t mean to sound unsympathetic, and I know the horrible feeling > that comes from losing family memories (which is why you now have, > undoubtedly, a firm resolution to never operate without backups ever > again), but there’s just no obvious solution here, not with zdb or > anything else. Rolling back to a previous TXG with zdb only helps you > to recover from an operation against a non-destroyed pool that you > would like to roll back. It cannot resurrect the dead, and this pool > is dead. It is never coming back. It is an ex-pool. Sorry!
A slightly different perspective: You created a backup of the raw drives: good, keep that and _never_ write to it. I would even suggest to make another copy and keep it, and in case you want to run another recovery try do it on yet another freshly created duplicate and never on your backups. Attach the original backups only to create another copy to try something on and always disconnect them after the copy! Reasoning is: don't make things worse. Also some time in the future there _might_ be recovery software that is able to dig through pool remnants with missing devices and destroyed uberblocks by scanning the remaining block devices for internal structures, which in theory is possible since it could check guesses (what type of block it might be looking at) about a random block by testing if downward pointers (and the checksum of the data there) would be valid. So far to my knowledge such a software dosn't exist, but it might in the future so hold onto the unmodified copies and you might get the data back some day. Gregor ------------------------------------------- openzfs-developer Archives: https://www.listbox.com/member/archive/274414/=now RSS Feed: https://www.listbox.com/member/archive/rss/274414/28015062-cce53afa Modify Your Subscription: https://www.listbox.com/member/?member_id=28015062&id_secret=28015062-f966d51c Powered by Listbox: http://www.listbox.com
