TrueNAS Scale - Auto Expand ZFS Pool Issues

[luc]

Hello everyone,

I’ve got some auto-expand ZFS pool issues. I had a ZFS pool of 9x 3TB drives. I offlined each drive and resilvered it with a 12TB drive. It was my understanding that once I replaced each drive in the pool, TrueNAS would recognize the new capacity and expand my pool. Unfortunately, this did not happen. Once all my drives were replaced, I tried clicking the “Expand” button by my pool but got the following error:

RECAP:

1. I’ve resilvered all my drives, and TrueNAS is not recognizing the new capacity.
2. The EXPAND button gives the following error
3. When I step into my Pool’s ‘‘MANAGE DEVICES’’ they all appear to be assigned as seen here:
   
   
4. However when I go back to the ‘"STORAGE’’ its telling me one of my drives is not assigned (12TB) the same drive that is in use in the pool:
   
   *if I try adding this drive into my ZFS pool it only allows me to add it as a STRIPE (my pool is Z2), it seems like TrueNAS has assigned this drive into my pool and yet not at the same time haha

Its a bit confusing to be honest, any help would be much appricated. Any commands I can run in my SSH?

[luc]

I’ve ran a ‘‘zpool status’’ command in my SSH, the pool in question is Genesis:

*All seems healthy, all 9 Drives are online and with no errors

[dan]

Manual disk replacement in TrueNAS SCALE

[luc]

Life saver thank you Dan!

[luc]

Following your ‘’ If you’ve already done a disk replacement’’ Ive ran the following commands:

However the issue still stays and my pool does not expand any ideas what im doing wrong?

[dan]

What’s the output of lsblk now?

[luc]

It seems it has fixed most of them, I think the issue might be with TrueNAS still having one of the drives not assigned to the pool while it clearly is in the pool?

[dan]

@luc

It seems it has fixed most of them

It looks like it fixed all of them. Can you try rebooting and see if that helps?

[luc]

The reboot worked! Apologies for the amature hour, the old reboot of course