[CentOS] new RAID5 array: 3x500GB with XFS

Sat Jul 4 07:22:06 UTC 2009
Timo Schoeler <timo.schoeler at riscworks.net>

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thus James A. Peltier spake:
> On Fri, 3 Jul 2009, Coert Waagmeester wrote:
> 
>> Hello all,
>>
>> I have yesterday after some typos, sent my ext3 RAID5 array to the
>> void...
>>
>> I want to recreate it now, but I read on
>> http://wiki.centos.org/HowTos/Disk_Optimization
>> that you can optimize the filesystem on top of the RAID.
>>
>> Will this wiki article be exactly the same for XFS?
>>
>> Is it worth the trouble to also create an LVM volume on the RAID array?

IMHO yes, as there are very nice features such as snapshotting and
resizing (XFS handles that excellently!) without major hassle. I even
use it on my 'workstation' (two RAID1, one for system, one huge for
data; on top of both LVM, partitions ext3 and XFS).

HTH,

Timo

>> Regards,
>> Coert
>>
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> http://lists.centos.org/mailman/listinfo/centos
> 
> You have to understand the details of how the raid was built, stripe size, 
> logical unit number and RAID-5 itself to properly optimize.  Google for 
> XFS performance tuning and you'll find lots of details.

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