March 11, 20224 yr I just got some new larger drives to upgrade some of my existing drives for more storage. The new drives are larger than my parity drive so I started by replacing the parity drive and starting the array. Apparently when I installed the new drive I bumped a cable or something and one of the data drives reported as "unmountable." I have no reason to think that it has failed or anything. I ran a SMART quick test and it had no issues. However, it still showed up as "disabled" even after I reinserted the cables. Being kind of stressed and not being careful enough, I started following instructions for re-enabling a disk (that happened to be instructions for rebuilding a disk, something I cannot do because the parity drive has not been rebuilt yet!). Whoops! I unassigned the disk then started the array. Then I stopped the array and now the disk shows up as a new device. Is there any simple way to undo my mistake? If I reinstall the old parity drive will Unraid recognize it and let me rebuild the disk? Is there a way to make Unraid realize that the "new device" is actually the proper disk that should be there? Thanks for your assistance!
March 11, 20224 yr Author Solution I think I have found a solution. I think I can just follow the steps at the link below for a new config? Then not check the box that says that parity is valid. https://wiki.unraid.net/Manual/Tools#New_Config Can anyone confirm if this solution will allow me to re-create the array and put the accidentally removed drive back in its place? Thanks.
March 11, 20224 yr Community Expert As long as the disk is really OK you can do the new config and re-sync parity.
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