Offline/Uncorrectable Sectors

[ARAMP1]

I have a pool of five 8TB WD Reds and I was getting this message for one of the drives.

I ended up replacing the drive, so my pool is now good, but I'm wondering if there's anything I can do with the old drive. With a little searching, I've found mention of writing all to zeros, but it wasn't clear. I've popped it in a windows machine and have formatted it. I did the windows error checking and it found no faults. I was thinking about putting it back into my TrueNAS machine and see if it still read the unreadable/uncorrectable sectors.

The drive is about 5 years old, so I don't mind just tossing it. But, if there can be a fix, I'll give it a shot. Any suggestions?

 

[Constantin]

A simple format may not be enough. Try filling the whole drive with data using a program like H2testw and then see if the data being read back makes sense.