3 ms·
I feel like SSD failure has little correlation with hours running, and more to do with TBW. Would be nice to see some read/write totals on these stats going for
by nikisweeting 5y ago
I feel like SSD failure has little correlation with hours running, and more to do with TBW. Would be nice to see some read/write totals on these stats going forward.
- toast0 5y agoDepends on the SSDs and the cause of failure. There have been high profile cases where a firmware bug meant an absolute cap on hours running. I've been involved in server farms with thousands of (mostly Intel) SSDs and (mostly WD) spinning drives; the spinning drives tended to have pre-failure indicators, but we couldn't figure out any indicators before SSD failure and generally they would just completely disappear from the bus when they did fail. The failure rate was signficantly less though. Our write rate wasn't very high and tended to be small writes; for busy disks, more than what we could do with a spinning disk, but usually not near the capability of the drives.
- sekh60 5y agoJust a homelabber, but in my 40+ drive homelab I've noticed the same. HDDs normally toss a couple SMART errors when dying. For SSDs I've gone through maybe 10 of them so far, and they just suddenly kick the bucket without warning.
- nikisweeting 5y agoMy experience with WD SSDs is that they just slow down more and more as they get close to the TBW limits, without failing fully / dropping off the bus (as another user describes here: https://news.ycombinator.com/item?id=27040491 https://news.ycombinator.com/item?id=27040491).