So about 2 weeks ago I had a disk in UNRAID go completely missing (Red Ball) during a preclear of a separate disk (Western Digital 6TB Red)
I tried several things:
1. Rebooted Several times
2. Examined the disk for physical defects.
3. Moved disk to a different slot (I tried 4 different slots on my 12 drive computer)
After replacing the disk in the array, and completing a parity check (all data safe). I tried to mount the hard drive on a separate computer using a hdd to usb converter. The disk mounted perfectly and all data was there. I tried putting the disk back in UNRAID and again, it could not find it.
I then wiped the disk with the linux "shred" command. (Sets all bits to zero). After that, UNRAID now recognizes the drive with no issues.
I ran it with a pre-clear and it worked perfectly.
Is this disk safe to use with UNRAID?