[CentOS] 40TB File System Recommendations

Thu Apr 14 14:47:53 UTC 2011
Peter Kjellström <cap at nsc.liu.se>

On Wednesday, April 13, 2011 09:29:29 AM Matthew Feinberg wrote:
> Thank you everyone for the advice and great information. From what I am
> gathering XFS is the way to go.
> A couple more questions.
> What partitioning utility is suggested? parted and fdisk do not seem to
> be doing the job.

My suggestion is don't partition at all, use LVM.

> Raid Level. I am considering moving away from the raid6 due to possible
> write performance issues. The array is 22 disks. I am not opposed to
> going with raid10 but I am looking for a good balance of
> performance/capacity.

Then try both for your use case and your hardware. We have wide raid6 setups 
that does well over 500 MB/s write (that is: not all raid6 writes suck...).

> Hardware or software raid. Is there an advantage either way on such a
> large array?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.centos.org/pipermail/centos/attachments/20110414/59278f1c/attachment-0003.sig>