Re:Digital Ocean completely destroyed my droplet beyond reco...
by TheLoneWolfling on Tuesday August 26, 2014 @07:02PM
(#8230061)
RAID is much less effective than it used to be.
Current BER (non recoverable read error rate) is around ~1/10^14.
If you lose a drive, the probability of you encountering an error when rebuilding the RAID is rapidly approaching 1 as time goes on - BERs are not decreasing nearly as fast as drive sizes are increasing.
(This assumes you are using a RAID where you can lose 1 drive and be fine. RAIDs where you can lose 2+ drives are still fine for now.)
And this isn't taking into account catastrophic controller failure, damage due to a faulty power supply / surge, etc.
Current BER (non recoverable read error rate) is around ~1/10^14.
If you lose a drive, the probability of you encountering an error when rebuilding the RAID is rapidly approaching 1 as time goes on - BERs are not decreasing nearly as fast as drive sizes are increasing.
(This assumes you are using a RAID where you can lose 1 drive and be fine. RAIDs where you can lose 2+ drives are still fine for now.)
And this isn't taking into account catastrophic controller failure, damage due to a faulty power supply / surge, etc.