This should be simple I don't know why I am having problems. A drive indicated it was having read errors, I stopped the array, removed the drive  (not physically) so the slot was empty. I powered down, put in a new drive, powered up, the array had already started, unRAID indicated the drive was unmountable, but offered to format it, I formatted it, now the drive has a red X next to it indicated the contents are emulated and my only option is to do a parity check, not a rebuild?

Something has gone wrong.    Formatting wipes the contents of a disk so I do not think that is what you should have done.  Just because a disk has errors does not always mean it should be replaced - often they are dues to an external factor such as power/SATA cabling issues.  Unmountable often means that file system corruption has occurred and the path forward is to run the relevant repair tool for the file system type.    In addition I do not see why the system should be offering to rebuild parity if you have a disk problem.

 

I would suggest that at this point you need to stop and get advice on the best way forward.  Providing the diagnostics file (Tools->Diagnostics) will help with getting informed advice.    I would also suggest a screenshot of the Main tab will help give an indication of what you are seeing.

Thanks, but I resolved it. I just stopped the array, removed the disk, started the array, then stopped it and added the disk back, then started it again and its doing a parity-sync/rebuild now with the new drive.

Thanks, but I resolved it. I just stopped the array, removed the disk, started the array, then stopped it and added the disk back, then started it again and its doing a parity-sync/rebuild now with the new drive.

i am a bit concerned that you mentioned formatting the disk - the rebuild may just be creating a disk with an empty file system.  You could check for this in the unRAID GUI by clicking the folder symbol against the disk in question to see if any files show up - what you see there while the rebuild is occurring is what you should have when it completes.    I would make sure you keep the disk you though had failed in a safe place until the rebuild completes in case you need to try and recover any data from it.

There are files on it and honestly its a backup server so I could easily reconstitute any lost data were that to happen. I already began a pre clear on the old drive, so thats not even available, guess next time I shouldn't be so hasty.

 

Thanks

 

AM