Old server resurrection, got some an issue i need advice on

Hi all,

I have a truenas server that I built a few years ago that got turned off for a reason i now cant remember.
I recently decided to get it up and running again.
After a few issues with hardware i had it up and running. At this point all disks were allocated to the correct places and everything was good.
Ive updated the software from the freenas core12.0-u8 it was running, to the current scale 24.

I run 2 pools, one on a pair of 2tb drives, the other is a pair of 6tb drives. It is purely for media storage and file serving for the family home.

Somewhere along the upgrade path a disk degradation notice appeared on one of my 6tb pool drives, also at the same time it said i had a new drive to add.

The ‘disks’ section in storage tells me all 4 drives and the boot drive are detected and they are all allocated to the right pools.

It seems the machine thinks the disk is both attached to my pool and a new drive!!

I tried exporting the pool and re-importing it, but i end up back at the same point with a spare drive to be allocated and a degraded pool.

Whilst playing with it at 2 am this morning i have managed to remove the suspect drive from the pool, so i now have a pool with 1 drive and a drive to be allocated thats already full of data.

In the ‘disks’ section it now displays this drive as detected but under the pool heading it says N/A.

So as it sits now i have 1 pool that is fine, 1 pool with 1 disk (showing degraded pool due to this) and a new drive to allocate.

How can i add the drive back in to the pool without wiping the data or is that my only option now??

Thanks for reading, any advice appreciated

Not sure if it is possible or not. But if it’s a 2tb drive, resilver should take only a couple of hours, which is reasonable.

OTOH, adding an allegedly failing drive to the pool may not be the best idea. Perhaps you should run a SMART test on it beforehand.