Don't disable a different disk during a rebuild

[JorgeB]

Like most probably know, all disks being valid, if there are errors on multiple disks, e.g. when there's a controller or power problem, Unraid only disables as many disks are there are parity devices, this is a very good thing, but if for example a user with single parity is rebuilding a disabled disk and a write fails to another one it disables that disk, leaving the user in a precarious situation, maybe there's a reason for this, maybe it's an oversight.

 

If it's the latter I would suggest the behavior should be similar to the described above, so that the user is not left with more invalid disks than parity can handle, also would suggest pausing the rebuild if that happens, so the user can decide if he wants to abort to check the problem and retry rebuilding or proceed knowing that there will be corruption on the rebuilt disk.