[mythtv-users] Reassemble RAID with mdadm
drees76 at gmail.com
Fri Mar 19 23:41:10 UTC 2010
On Fri, Mar 19, 2010 at 3:14 PM, Graham Mitchell <gmitch at woodlea.com> wrote:
>> Seems about right to me, I see 3-4 drive failures a year that I
>> replace under warranty on a 6 disk array.
> Really? That's insanely high... Over 50% fail every year?
> I have 3 arrays at work, with over 90 disks spinning 24/7 for the last 3
> years (almost exactly, as we got the warranty expiration notice from Dell
> last week). They're running 750TB consumer drives (since at the time, Dell
> didn't offer anything that big for the MD1000s, and we didn't want to pay
> the premium anyway for the backup staging area - everything would be on tape
> by the end of the day). And in the last 3 years, I think we've replaced 4
Yeah, 50% fail rate seems to be extremely high to me as well. I'm
seeing nowhere near that with 2-3 dozen consumer grade disks running
24/7 in various RAID arrays in Linux boxes over the past 10 years.
Failure rate is less than 5% (about one disk failure per year).
But we also run regular smart test and full read tests as well.
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