Truenas Core exchange pool with 4+8tb against a 14tb drive

[Stux]

Scrub the array.

Swap the faulty drive for a 14TB.

Setup a new pool on the 14TB.

Setup a replication from the old pool to the new pool.

Remove the old pool, and add the 14TB in.

Extend the original 14TB drive with the other 14TB drive

As per here:

Expand Single to Mirror?

I managed to double check. So yeah, on Storage Tab, click manage devices for the pool you want to manage. [Screenshot 2024-07-26 at 2.15.45 PM] Then select the device you want to “extend” with another replica (ie another disk to mirror your stripe), then hit extend, then select the drive you wish to use as the additional replica to form the mirror. [Screenshot 2024-07-26 at 2.09.15 PM] “Add VDEV” is not what you want, as that would add another vdev… which would be another stripe in this …

Rename the new pool of you want.