On 8/21/19 4:57 PM, Bill Bogstad wrote:
Another thought is that it might still be actively trying to remap bad
blocks. That could take a while (multiple seconds?),
Minutes. Like 10 or 15, I forget.
if it is having to retry.
It didn't feel like that. It had the random-access quality of real work.
But it is umounted, so I don't think the OS was directing it.
Maybe doing some checksum verifications?
These drives are doing some crazy impressive densities these days. I
don't know what preventative maintenance they might come up with.
If you aren't already monitoring the drive
for bad blocks (smartctl), you probably should.
I think I carefully felt for the same activity on a completely different
4TB WD drive and noticed the same thing, but only three or four minutes
worth.
I ping-pong between several drives in different locations, doing
backups, so if one died no big deal.
I am going to let them quiet down in the future before unplugging, however.
Thanks,
-kb
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