Move Jail directory?

[Chris230291]

Hello. At the moment I have my Jails in a dataset on my main Raid. If I wanted to move the entire Jail folder (with Jails inside it) to a separate non-Raid drive, would that be as simple as duplicating the contents to the new drive and updating the "Jail Root" path in Jails/configuration? Would this break anything?

Any input is appreciated,
Chris.

 

[Yatti420]

No.. You must change the jail root and reinstall from scratch.. There is another more complicated method.. Please search forums :)

http://forums.freenas.org/index.php?threads/relocate-jails-to-ssd-helping-hdd-sleep.16955/

 

[Chris230291]

No.. You must change the jail root and reinstall from scratch.. There is another more complicated method.. Please search forums :)

http://forums.freenas.org/index.php?threads/relocate-jails-to-ssd-helping-hdd-sleep.16955/

OK thanks Yatti420.

Is this the complicated method I can try...

Steps:

1. Turn off all plugins (Plugins->Installed)
2. Stop all jails (Jails->View Jails)
3. Run these commands via CLI:
   zfs snapshot -r main_pool/jails@relocate
   zfs send -R main_pool/jails@relocate | zfs receive -v ssd_pool/jails
   zfs get -rH -o name -s received mountpoint ssd_pool/jails | xargs -I {} sh -c "zfs set mountpoint=/{} {}; zfs mount {};"
4. Change the Jail Root to /mnt/ssd_pool/jails (Jails->Configuration)
5. Start jails/plugins
6. Check that everything works and destroy the original jails dataset (main_pool/jails)

Thanks,
Chris.

 

[Yatti420]

Just for the record I didn't use that method.. I just changed my jail root and restarted from scratch.. I have 5-6 jails for various purposes at the moment.. Took about 30 minutes total including editing syslog settings for jails etc..

 

[Chris230291]

Ok thanks. I think I'll try the method I posted first, if that fails I will just have to start fresh.

Cheers,
Chris

 

[kjp4756]

The method posted above works fine. I've done it several times in testing. Not a single issue.

In my scenario I was moving from a 2 drive mirror to a 4 drive raid-z2. I wanted to take 1 drive from the mirror and create an array with the 1 removed mirror drive and 2 new drives then add the other drive from the mirror after the data was moved. I used zfs snapshots to achieve this. The only thing I did differently to the method above was I didn't change the name of my pool. I removed the old one then re-imported the new pool with the same name as the old one. It all worked fine.