On Mon, 28 Jun 2010, Arthur Corliss wrote:
> In a nutshell he's focusing on double-disk failures as a statistical
> probability. In other words, double-disk failures are deadly to RAID5 data
> and they happen more frequently than many think. This is true, moreso if
> you're accustomed to running disks from the same production run.
>
> I still use RAID5 myself, but primarily on a SAN with automatic recovery
> with hot standby disks. And I've got a good mix of drives from many
> different production runs. Pretty easy to do when you buy mostly used. ;-)
I should also point out that as long as you keep your RAID5 arrays fairly
small the rebuild times are fairly manageable. If I were building multi-TB
arrays, though, I'd be very frightened of RAID5.
--Arthur Corliss
Live Free or Die
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Received on Mon Jun 28 11:52:16 2010
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