In an incredibly unscientific and extremely small sample size, I will note that one of my four drive 1U chassis has four ST3000DM001's in it, shucked out of external USB's. They've got about 16000 hours on them. Of those, one has failed and been replaced, and another has been reporting a slightly varying number of errors for a few months...
Code:
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65512 Offline uncorrectable sectors
Device: /dev/ada3, 65512 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65512 Offline uncorrectable sectors
Device: /dev/ada3, 65512 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65528 Offline uncorrectable sectors
Device: /dev/ada3, 65520 Offline uncorrectable sectors
I was like ... "wot?" when I saw the number *decrease* a few weeks back. Looks like it decreased again in the most recent report.
I'm kinda trying to hold off buying a replacement, because I'd really love to have 8's in there. Though I suppose I could do 6's and live with it. The pool has just finally passed 80% utilization
But anyways that's like a 50% problem rate on those 3TB drives. Ewww.