> On Jun 3, 2016, at 10:56 AM, esamorokov <esamoro...@gmail.com> wrote: > > Hello All, > > My name is Evgeny and I have 3 x 3TB in RAIDZ1, where one drive is gone > and I accidentally > screwed the other two. The data should be fine, just need to revert > uberblock in point of time, where i started doing changes.
I agree with Jordan, mostly. However, there a way to know for sure… each label has a set of uberblocks. Use “zdb -lu” to see this information. If you can find a matching set of uberblocks for the right pool on enough drives, then it is possible, though not guaranteed, that you can get enough of a pool to recover. OTOH, if the set does not include enough common uberblocks, then you know the end has come. — richard > > I AM KINDLY ASKING FOR HELP! The pool had all of the family memories for > many years Thanks in advance! > > I am not a FreeBSD guru and have been using ZFS for a couple of years, > but I know Linux and do some programming/scripting. > Since I got that incident I started learning the depth of the ZFS, but I > definitely need help on it at this point. > Please don't ask me why I did not have backups, I was building backup > server in my garage, when it happened > > History: > I was using WEB GUI of FreeNas and it reported a failed drive > I shutdown the computer and replaced the drive, but I did not noticed > that I accidentally disconnected power of another drive > I powered on the server and expanded the pool where there only one drive > of the pool was active > Then I began to really learn ZFS and messing up with bits > At some point I created a backup bit-to-bit images of the two drives from > the pool (using R-Studio) > > > Specs(ORIGINAL): > OS: FreeBSD 9.2-RELEASE (FREENAS.amd64) #0 r+2315ea3: Fri Dec 20 12:48:50 > PST 2013 > RAID: [root@juicy] ~# camcontrol devlist > <ST3000DM001-1CH166 CC29> at scbus1 target 0 lun 0 (pass1,ada1) > <ST3000DM001-1CH166 CC29> at scbus2 target 0 lun 0 (ada2,pass2) > <ST3000DM001-9YN166 CC4H> at scbus3 target 0 lun 0 (pass3,ada3) > [root@juicy] ~# zdb > zh_vol: > version: 5000 > name: 'zh_vol' > state: 0 > txg: 14106447 > pool_guid: 2918670121059000644 > hostid: 1802987710 > hostname: '' > vdev_children: 1 > vdev_tree: > type: 'root' > id: 0 > guid: 2918670121059000644 > create_txg: 4 > children[0]: > type: 'raidz' > id: 0 > guid: 14123440993587991088 > nparity: 1 > metaslab_array: 34 > metaslab_shift: 36 > ashift: 12 > asize: 8995321675776 > is_log: 0 > create_txg: 4 > children[0]: > type: 'disk' > id: 0 > guid: 17624020450804741401 > path: '/dev/gptid/6e5cea27-7f52-11e3-9cd8-d43d7ed5b587' > whole_disk: 1 > DTL: 137 > create_txg: 4 > children[1]: > type: 'disk' > id: 1 > guid: 3253299067537287428 > path: '/dev/gptid/2b70d9c0-8e40-11e3-aa1c-d43d7ed5b587' > whole_disk: 1 > DTL: 133 > create_txg: 4 > children[2]: > type: 'disk' > id: 2 > guid: 17999524418015963258 > path: '/dev/gptid/1e898758-9488-11e3-a86e-d43d7ed5b587' > whole_disk: 1 > DTL: 134 > create_txg: 4 > > State summary of the drives/pool: > > State #1 State #2 State #3 State #4 State #5 > ada1 (ada1p2) OK OK DISCONNECTED CONNECTED (OLD POOL) CLONED > to a new drive, Prev. state > ada2 (ada2p2) OK OK OK OK (new Pool) CLONED to a new drive, > Prev. state > ada3 (ada3p2) OK FAILED REPLACED CONNECTED FAILED DRIVE (OLD > POOL) CLONED to ada4, Prev. state > ZH_VOL (pool) OK DEGRADED DESTROYED RECREATED > Previous State > > > Specs (CURRENT): > root@juicy] ~# camcontrol devlist > <Patriot Pyro SE 332ABBF0> at scbus0 target 0 lun 0 (ada0,pass0) > <ST3000DM001-1ER166 CC25> at scbus1 target 0 lun 0 (ada1,pass1) > <ST3000DM001-1ER166 CC25> at scbus2 target 0 lun 0 (ada2,pass2) > <ST3000DM001-9YN166 CC4H> at scbus3 target 0 lun 0 (ada3,pass3) > <ST3000DM001-1ER166 CC26> at scbus5 target 0 lun 0 (ada4,pass4) > <Marvell 91xx Config 1.01> at scbus11 target 0 lun 0 (pass5) > > [root@juicy] ~# zdb > zh_vol: > version: 5000 > name: 'zh_vol' > state: 0 > txg: 1491 > pool_guid: 10149654347507244742 > hostid: 1802987710 > hostname: 'juicy.zhelana.local' > vdev_children: 2 > vdev_tree: > type: 'root' > id: 0 > guid: 10149654347507244742 > create_txg: 4 > children[0]: > type: 'disk' > id: 0 > guid: 5892508334691495384 > path: '/dev/ada0s2' > whole_disk: 1 > metaslab_array: 33 > metaslab_shift: 23 > ashift: 12 > asize: 983564288 > is_log: 0 > create_txg: 4 > children[1]: > type: 'disk' > id: 1 > guid: 296669430778697937 > path: '/dev/ada2p2' > whole_disk: 1 > metaslab_array: 37 > metaslab_shift: 34 > ashift: 12 > asize: 2997366816768 > is_log: 0 > create_txg: 1489 > > Thnks in advance! > Evgeny. > > openzfs-developer | Archives > <https://www.listbox.com/member/archive/274414/=now> > <https://www.listbox.com/member/archive/rss/274414/28015371-3fde6cf7> | > Modify <https://www.listbox.com/member/?&;> Your Subscription > <http://www.listbox.com/><Zpool_history_cleanned.txt> -- richard.ell...@richardelling.com +1-760-896-4422 ------------------------------------------- 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
