I'm running Unraid for a couple of years now on 1 ssd as data in a cache pool.

I do like to add an extra ssd of the same size to create a RAID1 cache pool to be redundand.

But I don't want to lose the existing data of the already existing pool.

The current cache pool is xfs organized.

Please advice

XFS is single device only, you would need to convert the pool to BTRFS or ZFS.

16 minutes ago, JorgeB said:

XFS is single device only, you would need to convert the pool to BTRFS or ZFS.

Thanks. But does this mean that it will be formatted? And I do loose my data?

I did hope to simple add the disk and set it to RAID1.

But I quesse that it is not that simple

Edited February 14, 20251 yr by canedje2

If it's XFS it isn't. You'll have to copy all the contents somewhere else so you can reformat and copy back.

Thanks clear

Is there a kind of tutorial how to do this somewhere?

You can use this to move the data to the array or another pool, then back to that one once it's reformatted:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/#findComment-511923

 

Thanks thats is handy.

The only problem is that I only have one pool and do need to move it temporary to my NAS somewher

You can move to the array.