Currently, I'm in the process of upgrading to larger disks and subsequently phasing out smaller ones (replacing 2x8TB drives with a 18TB drive).
The procedure I'm following is as follows:
1) Swapping one of the 8TB drives with the 18TB drive and rebuilding from parity.
2) Conducting a disk to disk transfer, copying all data from the second 8TB drive to the 18TB drive.
3) Removing the second 8TB from the array
4) Applying "New Config" tool, since there is no other way to remove disk from the array
5) Rebuilding parity
I'm currently in the third cycle of this process and I'm surprised to find that I've lost all my disk shares and disk settings during the "New Config" phase, despite selecting the option to preserve assignments. While the disk assignments (positions) remain intact, all disk shares are disabled by Unraid as a result of "New Config". Moreover, all settings configured under settings/disk are lost. Strangely, I even have to reinitialize the user shares, meaning although the user shares exist, I can't write anything to them until I modify a setting within the user share, click apply, revert the change, and then reapply to restore the desired configuration.
Is this behavior intentional? It's been a while since I last used "New Config," but I don't recall it wiping all settings in this manner.