Recovery after power loss

[Herftijd]

Hello, I am new here,not an expert On ZFS or FreeNAS. We have a couple freeNAS servers we use to store data and backups. After a power loss one of them had trouble getting On the network again.

The system is latest 11.2 and had one pool with 2 mirrored 8 TB. I recently put up Plex in a jail but that is not important.

I decided to Reset the Configuration On the console to get Access On the network.this worked but in the gui My pool was invidible. I Made a new pool and added both disks in there thinking that would get the data back. The disk show correct used TB but My old data is not there. After Reading here I. Realise thiswas not How to do things.

Any idea How to Recover the data from those disks?

Turns out I also did not backup My original config, so I am a bit stuck here

 

[sretalla]

I Made a new pool and added both disks in there

It will heavily depend on how you did this as to what can happen to get data back... It should not have been possible to do that without first electing to Wipe the disks.

What's the output from:

zpool status

zpool import

zpool history <name of your pool>

 

[Herftijd]

[root@freenas ~]# zpool history
History for 'ALSVideoPhoto':
2018-11-20.06:40:31 zpool create -o cachefile=/data/zfs/zpool.cache -o failmode=continue -o autoexpand=on -O compression=lz4 -O aclmode=passthrough -O aclinherit=passthrough -f -m /ALSVideoPhoto -o altroot=/mnt ALSVideoPhoto mirror /dev/gptid/384ca99d-ecd2-11e8-96f5-001921e70a04 /dev/gptid/3a6d66ae-ecd2-11e8-96f5-001921e70a04
2018-11-20.06:40:36 zfs inherit mountpoint ALSVideoPhoto
2018-11-20.06:40:36 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-20.06:47:07 zfs set aclmode=passthrough ALSVideoPhoto
2018-11-20.06:50:20 <iocage> zfs set org.freebsd.ioc:active=yes ALSVideoPhoto
2018-11-20.06:50:20 zpool export -f ALSVideoPhoto
2018-11-20.06:51:35 zpool import -f -R /mnt 1642146239764895716
2018-11-20.06:51:35 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-20.06:51:37 zfs inherit -r mountpoint ALSVideoPhoto
2018-11-20.06:51:38 zfs set aclmode=passthrough ALSVideoPhoto
2018-11-20.06:51:43 zfs set aclinherit=passthrough ALSVideoPhoto
2018-11-20.06:51:46 zfs set mountpoint=legacy ALSVideoPhoto/.system
2018-11-20.06:51:46 zfs set mountpoint=legacy ALSVideoPhoto/.system/cores
2018-11-20.06:51:46 zfs set mountpoint=legacy ALSVideoPhoto/.system/samba4
2018-11-20.06:51:47 zfs set mountpoint=legacy ALSVideoPhoto/.system/syslog-db538752be414ac5a9c2b3f850426dca
2018-11-20.06:51:47 zfs set mountpoint=legacy ALSVideoPhoto/.system/rrd-db538752be414ac5a9c2b3f850426dca
2018-11-20.06:51:47 zfs set mountpoint=legacy ALSVideoPhoto/.system/configs-db538752be414ac5a9c2b3f850426dca
2018-11-20.06:51:47 zpool export ALSVideoPhoto
2018-11-20.07:12:39 zpool import -f -R /mnt 1642146239764895716
2018-11-20.07:12:39 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-20.07:12:39 zfs inherit -r mountpoint ALSVideoPhoto
2018-11-20.07:12:40 zfs set aclmode=passthrough ALSVideoPhoto
2018-11-20.07:12:45 zfs set aclinherit=passthrough ALSVideoPhoto
2018-11-22.04:19:24 zpool import -c /data/zfs/zpool.cache.saved -o cachefile=none -R /mnt -f 1642146239764895716
2018-11-22.04:19:24 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-22.04:52:47 zpool import -c /data/zfs/zpool.cache.saved -o cachefile=none -R /mnt -f 1642146239764895716
2018-11-22.04:52:47 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-22.04:55:23 zpool export ALSVideoPhoto
2018-11-22.05:27:17 zpool import -f -R /mnt 1642146239764895716
2018-11-22.05:27:17 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-22.05:27:19 zfs inherit -r mountpoint ALSVideoPhoto
2018-11-22.05:27:19 zfs set aclmode=passthrough ALSVideoPhoto
2018-11-22.05:27:24 zfs set aclinherit=passthrough ALSVideoPhoto
2018-11-22.05:27:24 zfs set mountpoint=legacy ALSVideoPhoto/.system
2018-11-22.05:27:24 zfs set mountpoint=legacy ALSVideoPhoto/.system/cores
2018-11-22.05:27:24 zfs set mountpoint=legacy ALSVideoPhoto/.system/samba4
2018-11-22.05:27:24 zfs set mountpoint=legacy ALSVideoPhoto/.system/syslog-db538752be414ac5a9c2b3f850426dca
2018-11-22.05:27:25 zfs set mountpoint=legacy ALSVideoPhoto/.system/rrd-db538752be414ac5a9c2b3f850426dca
2018-11-22.05:27:25 zfs set mountpoint=legacy ALSVideoPhoto/.system/configs-db538752be414ac5a9c2b3f850426dca
2018-11-22.05:27:30 zfs set mountpoint=legacy ALSVideoPhoto/.system/webui
2018-11-22.08:12:24 zpool import -c /data/zfs/zpool.cache.saved -o cachefile=none -R /mnt -f 1642146239764895716
2018-11-22.08:12:24 zpool set cachefile=/data/zfs/zpool.cache ALSVideoPhoto
2018-11-22.08:12:29 zfs set aclmode=restricted ALSVideoPhoto
2018-11-22.08:13:15 zfs set aclmode=passthrough ALSVideoPhoto/.system

History for 'freenas-boot':
2016-09-27.06:58:32 zpool create -f -o cachefile=/tmp/zpool.cache -o version=28-O mountpoint=none -O atime=off -O canmount=off freenas-boot ada0p2
2016-09-27.06:58:32 zpool set feature@async_destroy=enabled freenas-boot
2016-09-27.06:58:32 zpool set feature@empty_bpobj=enabled freenas-boot
2016-09-27.06:58:32 zpool set feature@lz4_compress=enabled freenas-boot
2016-09-27.06:58:32 zfs set compress=lz4 freenas-boot
2016-09-27.06:58:32 zfs create -o canmount=off freenas-boot/ROOT
2016-09-27.06:58:33 zfs create -o mountpoint=legacy freenas-boot/ROOT/default
2016-09-27.06:58:38 zfs create -o mountpoint=legacy freenas-boot/grub
2016-09-27.07:02:15 zpool set bootfs=freenas-boot/ROOT/default freenas-boot
2016-09-27.07:02:15 zpool set cachefile=/boot/zfs/rpool.cache freenas-boot
2016-09-27.07:02:28 zfs set beadm:nickname=default freenas-boot/ROOT/default
2016-09-27.06:20:15 zfs snapshot -r freenas-boot/ROOT/default@2016-09-27-06:20:15
2016-09-27.06:20:16 zfs clone -o canmount=off -o mountpoint=legacy freenas-boot/ROOT/default@2016-09-27-06:20:15 freenas-boot/ROOT/Initial-Install
2016-09-27.06:20:21 zfs set beadm:nickname=Initial-Install freenas-boot/ROOT/Initial-Install
2016-11-22.18:45:13 zpool scrub freenas-boot
2016-12-28.18:45:12 zpool scrub freenas-boot
2017-02-02.18:45:12 zpool scrub freenas-boot
2017-03-10.18:45:12 zpool scrub freenas-boot
2017-04-15.18:45:23 zpool scrub freenas-boot
2017-05-21.18:45:12 zpool scrub freenas-boot
2017-08-21.18:45:12 zpool scrub freenas-boot
2017-09-26.18:45:12 zpool scrub freenas-boot
2017-10-31.19:45:12 zpool scrub freenas-boot
2017-12-06.18:45:12 zpool scrub freenas-boot
2018-01-11.04:53:13 zfs snapshot -r freenas-boot/ROOT/default@2018-01-11-13:53:13
2018-01-11.04:53:14 zfs clone -o canmount=off -o mountpoint=legacy freenas-boot/ROOT/default@2018-01-11-13:53:13 freenas-boot/ROOT/9.10.2-U6
2018-01-11.04:53:19 zfs set beadm:nickname=9.10.2-U6 freenas-boot/ROOT/9.10.2-U6
2018-01-11.04:53:26 zfs snapshot freenas-boot/grub@Pre-Upgrade-9.10.2-U6
2018-01-11.05:05:03 zfs set canmount=noauto freenas-boot/ROOT/9.10.2-U6
2018-01-11.05:05:03 zfs set mountpoint=/tmp/BE-9.10.2-U6.PZU8TLJ3 freenas-boot/ROOT/9.10.2-U6
2018-01-11.05:05:04 zfs set mountpoint=/ freenas-boot/ROOT/9.10.2-U6
2018-01-11.05:05:04 zpool set bootfs=freenas-boot/ROOT/9.10.2-U6 freenas-boot
2018-01-11.05:05:04 zfs set canmount=noauto freenas-boot/ROOT/Initial-Install
2018-01-11.05:05:04 zfs set canmount=noauto freenas-boot/ROOT/default
2018-01-11.05:05:09 zfs promote freenas-boot/ROOT/9.10.2-U6
2018-01-11.18:45:09 zpool scrub freenas-boot
2018-02-16.18:45:08 zpool scrub freenas-boot
2018-03-24.18:45:08 zpool scrub freenas-boot
2018-04-29.18:45:08 zpool scrub freenas-boot
2018-06-04.18:45:08 zpool scrub freenas-boot
2018-07-10.18:45:08 zpool scrub freenas-boot
2018-08-15.18:45:09 zpool scrub freenas-boot
2018-09-20.18:45:08 zpool scrub freenas-boot
2018-10-25.06:47:38 zfs snapshot -r freenas-boot/ROOT/9.10.2-U6@2018-10-25-15:47:38
2018-10-25.06:47:39 zfs clone -o canmount=off -o mountpoint=/ freenas-boot/ROOT/9.10.2-U6@2018-10-25-15:47:38 freenas-boot/ROOT/11.2-RC1
2018-10-25.06:47:44 zfs set beadm:nickname=11.2-RC1 freenas-boot/ROOT/11.2-RC1
2018-10-25.06:55:12 zfs set canmount=noauto freenas-boot/ROOT/11.2-RC1
2018-10-25.06:55:12 zfs set mountpoint=/tmp/BE-11.2-RC1.h4O9LcQv freenas-boot/ROOT/11.2-RC1
2018-10-25.06:55:12 zfs set mountpoint=/ freenas-boot/ROOT/11.2-RC1
2018-10-25.06:55:13 zpool set bootfs=freenas-boot/ROOT/11.2-RC1 freenas-boot
2018-10-25.06:55:13 zfs set canmount=noauto freenas-boot/ROOT/9.10.2-U6
2018-10-25.06:55:13 zfs set canmount=noauto freenas-boot/ROOT/Initial-Install
2018-10-25.06:55:13 zfs set canmount=noauto freenas-boot/ROOT/default
2018-10-25.06:55:17 zfs promote freenas-boot/ROOT/11.2-RC1
2018-10-25.18:45:12 zpool scrub freenas-boot
2018-11-01.19:45:08 zpool scrub freenas-boot
2018-11-13.18:45:12 zpool scrub freenas-boot
2018-11-22.05:03:39 zfs set canmount=noauto freenas-boot/ROOT/9.10.2-U6
2018-11-22.05:03:39 zfs set mountpoint=/tmp/BE-9.10.2-U6.y7b5YYPm freenas-boot/ROOT/9.10.2-U6
2018-11-22.05:03:40 zfs set mountpoint=/ freenas-boot/ROOT/9.10.2-U6
2018-11-22.05:03:41 zpool set bootfs=freenas-boot/ROOT/9.10.2-U6 freenas-boot
2018-11-22.05:03:41 zfs set canmount=noauto freenas-boot/ROOT/11.2-RC1
2018-11-22.05:03:41 zfs set canmount=noauto freenas-boot/ROOT/Initial-Install
2018-11-22.05:03:42 zfs set canmount=noauto freenas-boot/ROOT/default
2018-11-22.05:03:47 zfs promote freenas-boot/ROOT/9.10.2-U6
2018-11-22.05:18:55 zfs set canmount=noauto freenas-boot/ROOT/11.2-RC1
2018-11-22.05:18:55 zfs set mountpoint=/tmp/BE-11.2-RC1.TU13DAAd freenas-boot/ROOT/11.2-RC1
2018-11-22.05:18:55 zfs set mountpoint=/ freenas-boot/ROOT/11.2-RC1
2018-11-22.05:18:56 zpool set bootfs=freenas-boot/ROOT/11.2-RC1 freenas-boot
2018-11-22.05:18:56 zfs set canmount=noauto freenas-boot/ROOT/9.10.2-U6
2018-11-22.05:18:56 zfs set canmount=noauto freenas-boot/ROOT/Initial-Install
2018-11-22.05:18:56 zfs set canmount=noauto freenas-boot/ROOT/default
2018-11-22.05:18:59 zfs promote freenas-boot/ROOT/11.2-RC1
2018-11-23.03:45:11 zpool scrub freenas-boot

 

[Herftijd]

zpool status
pool: ALSVideoPhoto
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: http://illumos.org/msg/ZFS-8000-2Q
scan: none requested
config:

NAME STATE READ WRITE CKSUM
ALSVideoPhoto DEGRADED 0 0 0
mirror-0 DEGRADED 0 0 0
15693147743587574576 UNAVAIL 0 0 0 was /dev/gptid/384ca99d-ecd2-11e8-96f5-001921e70a04
gptid/3a6d66ae-ecd2-11e8-96f5-001921e70a04 ONLINE 0 0 0

errors: No known data errors

pool: freenas-boot
state: ONLINE
scan: scrub repaired 0 in 0 days 00:00:56 with 0 errors on Fri Nov 23 03:45:58 2018
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
ada0p2 ONLINE 0 0 0

errors: No known data errors
[root@freenas ~]#

 

[Herftijd]

the old pool had a different name: ALSVideoRaid and there is no info to be found anymore with these commands.