[CentOS] RAID 5 setup?

Hakan Koseoglu hakan at koseoglu.org
Thu Mar 25 22:27:44 UTC 2010


On Thu, Mar 25, 2010 at 9:07 PM, Boris Epstein <borepstein at gmail.com> wrote:
>> Note: RAID5 is not really recomended for such large disks.  You run the
>> risk of a complete data loss if one disk fails and the another disk
>> fails during the rebuild.
> Why is the size a factor here? Why would this be OK with smaller
> disks? How would you partition this instead?
As the disks get bigger, rebuild time also increases and the
performance of the disks don't increase linearly with their storage.
This means that when you are rebuilding a disk, the chances of one of
your other disks failing becomes significantly large. Most suggest
RAID6 these days as a minimum, mirroring and striping appears to be
the most popular.

-- 
Hakan (m1fcj) - http://www.hititgunesi.org


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