- May 7, 2002
- 10,376
- 762
- 126
https://www.backblaze.com/blog/hard-drive-reliability-q4-2015/
Let's start off with the duds...
and now, things get more interesting...
WD reds
Let's see the overall brands... (NOTE: look as sample size!)
How about 4TB drives? (again, pay attention to sample size!)
What about 6TB HDs you say?
Helium drives?
Well...
What does this all translate to?
Well, since lots of those HGST drives aren't made anymore, and such a low sample size for WD drives, the only thing people can really take away from this is, backup your data no matter what you have!
On the plus side, Seagate seems to have fixed whatever issue they had with their duds, so, might start sampling those once again.
Let's start off with the duds...
and now, things get more interesting...
WD reds
Let's see the overall brands... (NOTE: look as sample size!)
How about 4TB drives? (again, pay attention to sample size!)
Again, for those that missed it, HGST no longer makes the good drives that are being sampled here...All of the 4TB drives have acceptable failure rates, but weve purchased primarily Seagate drives. Why? The HGST 4TB drives, while showing exceptionally low failure rates, are no longer available having been replaced with higher priced, higher performing models. The readily available and highly competitive price of the Seagate 4TB drives, along with their solid performance and respectable failure rates, have made them our drive of choice.
What about 6TB HDs you say?
Helium drives?
Well...
We continue to only have 45 of each of the 5TB Toshiba and 8TB HGST Helium drives. One 8TB HGST drive failed during Q4 of 2015. Over their lifetime the 5TB Toshiba drives have a 2.70% annual failure rate with 1 drive failure and the 8TB HGST drives have a 4.90% annual failure rate with 2 drive failures. In either case, there is not enough data to reach any conclusions about failure rates of these drives in our environment.
What does this all translate to?
Well, since lots of those HGST drives aren't made anymore, and such a low sample size for WD drives, the only thing people can really take away from this is, backup your data no matter what you have!
On the plus side, Seagate seems to have fixed whatever issue they had with their duds, so, might start sampling those once again.