Encryption and ZFS

mentor · Post by **mentor** » 17 Sep 2012 13:33

I have installed a NAS4Free on a VM, and as recommended, i installed it on a 1GB virtual disk, and assigned another disk 500GB to this VM for file storage.
I have created the disk, encrypted it, created a ZFS virtual disk, and then a ZFS storage pool. Everything was working. On every restart of this VM i needed to go on and mount the encrypted drive.
Recently i upgraded the host machine, and now i cant mount or make it work. I have tried removing everything and setting up from scratch everything, (with the exception of formating the disk i have used an encrypted one without formating it).
Any suggestion on how can i at least get back my data, can i mount somehow the encrypted drive even in another utility, just need to get back the data that were on it.
The following appears in the ZFS Storage Pool, and the mounted disk does not appear anywhere: Name: StoragePool; Size: Unknown; Used: Unknown; Free: Unknown; Capacity: Unknown; Dedup: Unknown; Health: Unknown; AltRoot: Unknown

Post by **daoyama** » 18 Sep 2012 20:06

mentor wrote:I have created the disk, encrypted it, created a ZFS virtual disk, and then a ZFS storage pool.

In your case, you should get snapshot of VM. Then try following from shell.

# geli load
# geli dump /dev/adaX (or /dev/daX)

If you don't know the disk, try it for all disks. If you encrypted before, dump show meta info of encryption.
If you encrypted RAID disks, try to find like /dev/mirror/XXX or /dev/raid5/XXX.

Finally, attach it to the system. (need password)

# geli attach /dev/adaX

Regards,
Daisuke Aoyama

mentor · Post by **mentor** » 19 Sep 2012 09:22

daoyama wrote:
mentor wrote:I have created the disk, encrypted it, created a ZFS virtual disk, and then a ZFS storage pool.
In your case, you should get snapshot of VM. Then try following from shell.

# geli load
# geli dump /dev/adaX (or /dev/daX)

If you don't know the disk, try it for all disks. If you encrypted before, dump show meta info of encryption.
If you encrypted RAID disks, try to find like /dev/mirror/XXX or /dev/raid5/XXX.

Finally, attach it to the system. (need password)

# geli attach /dev/adaX

Regards,
Daisuke Aoyama

I'm not having a problem attaching it, i'm having a problem establishing the ZFS Pool, the following is displayed at the Storage Pool:
Name: StoragePool; Size: Unknown; Used: Unknown; Free: Unknown; Capacity: Unknown; Dedup: Unknown; Health: Unknown; AltRoot: Unknown

When i'm creating the Storage Pool i'm receiving Error Code 1, but i've seen somewhere that it's just a UI bug.
Thank you for your support

Post by **raulfg3** » 20 Sep 2012 09:01

Try to delete /var/db/updatenotify.db

see: viewtopic.php?f=57&t=261

mentor · Post by **mentor** » 20 Sep 2012 09:27

raulfg3 wrote:Try to delete /var/db/updatenotify.db

see: viewtopic.php?f=57&t=261

The moment that i remove it through UI or command line it gets recreated again! It takes a very long time to access zfs pool. But i'm having the same problem with it, as you can see in my posted above, every info is unknown.

Post by **raulfg3** » 20 Sep 2012 11:14

see viewtopic.php?f=16&t=1271 perhaps helps you.

mentor · Post by **mentor** » 20 Sep 2012 11:23

raulfg3 wrote:see viewtopic.php?f=16&t=1271 perhaps helps you.

Thank you very very much, this one fixed my problem, i owe you one

XigmaNAS

Encryption and ZFS

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