Quote:
Originally Posted by Rogean
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Atleast this new array has a hot swap this time, yay.
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I've been watching this thread for some time but I've not seen anyone point this out, so I'm taking the opportunity. If this ain't news to you, then, excuse the noise.
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Drives are usually rated with an MTTF (mean time to failure), which gives an estimate of how many hours the drives will last before they fail. Usually, the variance associated with an MTTF is not very large. So now consider if you buy 6 drives, from the exact same batch (where the real times to failure are much likely to be closer together than the variance the manufacturer might claim with their MTTF), and put them in the same server at the same time. Now these drives each have the same number of hours on them... so even though you have your nice RAID5 so you can lose a drive without losing data, suddenly, 3 years in, you get multiple drives failing within a week of each other.
I suspect that's what's happened here, but knowing very little about the actual setup, I can't realistically make assumptions. Anyway, this kind of situation actually happens quite commonly; I've heard numerous horror stories.
Hope this is helpful information; if not to Rogean, then to someone else.
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