Degraded pool: Please help me fix it.

[Mike G]

I've seen that "freed uma keg freenas" post before, so yes, I should have looked it up to refresh myself.

I'll run badblocks next. Thanks.

 

[Mike G]

As far I can tell, the disk replacement was successful. I'm very happy that everything is working. I need to set up my SMART testing with the new disk soon. I can't thank you enough for providing sound advice and having a little patience while I figured things out.

 

[Stux]

From https://wiki.archlinux.org/index.php/Badblocks I'm reading that
a destructive badblocks test can be run on a new drive with:
badblocks -wsv /dev/<device>
and
a non-destructive test on existing drive with:
badblocks -nsv /dev/<device>

I feel like after I identify the serial number of the degraded disk, offline it and physically remove it, that to be absolutely safe I should disconnect the sata cables from all the other disks and put in the new disk before attempting the destructive test on that new disk. This may be overkill for others, but can I go wrong here vs another method? Then after all the drives are back in and after the resilvering process I can run the non-destructive test on all disks.

FWIW, here's the burnin testing with badblocks instructions for freenas
https://forums.freenas.org/index.php?resources/hard-drive-burn-in-testing.92/

 

[Mike G]

Got it. Thanks.