Extending a ZFS Pool

[Alex Hughes]

Hello,

I am looking for a way to modify a ZFS pool that includes a Mirror set of drives and one striped drive. I want to add another drive to mirror the striped drive however I can't seem to work out how to do it. I've looked up a few guides but can't get my head around doing it via the GUI or command line.

 

[gpsguy]

You can't do it via the GUI. We normally don't advocate using the command line, but you'll need to use it to create the mirror after the fact.

Search the forum for instructions - you can find it here on the forum. Don't use a random guide found on the internet.

 

[mjws00]

Here is one I helped with a while ago. Including full transcript of an example done.

Unfortunately don't have time to handhold right now. Be careful. But it isn't terribly dangerous or difficult.

https://forums.freenas.org/index.php?threads/26326/

 

[Robert Trevellyan]

You can always practice on a virtual machine.