Managing jails on multiple pools

[James Mason]

Hi

I've looked in the documentation but it doesn't seem to cover this part.

Reason for question: I'm looking at recreating my Plex server on a new SSD pool that I have added to my TrueNAS server. I'm recreating rather than moving because I have a very simple Plex setup and I've done it before without much hard work, whereas if I move it and then encounter issues that will likely be much more hard work.

When on the Jails page on the TrueNAS UI if I hover over the cog (top right) the tooltip is "Choose Pool for Plugin and Jails Manager". Can someone please help me understand the logic here behind having a "Plugin and Jails Manager" that specifically wants to deal with a single pool, instead of having an option on the pool Jail creation page asking "Choose a pool to install this new jail to".

Is it because it wants to show a list of only the jails that are within the iocage on the current pool that you have selected? If so I would have thought a simpler way to do this would have been to display it in the way that pools are shown on the Storage>Pools page where it shows one pool with the datasets, etc. nested underneath it and then it shows the next pool in the same way and so on.

Or have I completely/somewhat missed the point of this?

Also, as per my reason for the question at the top of the post, can I just go ahead and create a Plex server on a new jail on the new pool and delete the old one from the original pool or will installing a new Jail on a new pool mess up settings for existing other jails on the original pool?

Thanks in advance.

(edit: corrected the word pool to Jail as I was talking rubbish)

 

[sretalla]

The jails (and iocage jail manager) system only supports running from one single base dataset (hence can only be on one single pool). This applies to all jails on the same system.

If you want the data (or some of it) from your plex jail to live on another pool (for example to have fast access to the metadata database), use a mount for the config (which is good practice anyway to not have anything inside the jail that would matter if you needed to re-create the jail).

 

[James Mason]

Thanks for the reply. That clears a few things up. I'll take a look at mounting the data on the other pool and see how that goes.