On 11/07/17 15:13, Lew Wolfgang wrote:
On 07/11/2017 03:06 AM, Per Jessen wrote:
We have a disk fail about once a month, on average I think. Most in the bigger/newer RAID6 arrays, surprisingly rarely in RAID1 or RAID5, but they're usually smaller and older drives. Modern 2/4/6Tb SAS drives are a lot more prone to failure than ancient Compaq (9/18/36Gb drives:-)
I'm on a roll! three 6TB and two 4TB within the last two months. One 4TB went out yesterday. Disappointing.
They are proper raid drives with error recovery? If they are desktop drives without SCT/ERC, then you're asking for trouble, although I guess if you've successfully replaced them, then they are appropriate drives. For those who don't know, a desktop drive is "within spec" if it returns one soft read error per 10GB read. In other words, read a 6TB drive end-to-end twice, and the manufacturer says "if you get a read error, that's normal". But it will cause an array to fail if you haven't set it up properly ... (most drives perform far better than spec, I know. But you should always be prepared for what the manufacturer says is the worst acceptable case.)
BTW, no data lost, all arrays were many-disk RAID6.
Good going :-) Cheers, Wol -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org