On Tue, Apr 12, 2011 at 3:36 AM, Alain Péan <alain.pean at lpp.polytechnique.fr > wrote: > Le 12/04/2011 09:23, Matthew Feinberg a écrit : > > Hello All > > > > I have a brand spanking new 40TB Hardware Raid6 array to play around > > with. I am looking for recommendations for which filesystem to use. I am > > trying not to break this up into multiple file systems as we are going > > to use it for backups. Other factors is performance and reliability. > > > > CentOS 5.6 > > > > array is /dev/sdb > > > > So here is what I have tried so far > > reiserfs is limited to 16TB > > ext4 does not seem to be fully baked in 5.6 yet. parted 1.8 does not > > support creating ext4 (strange) > > > > Anyone work with large filesystems like this that have any > > suggestions/recommendations? > > Hi Matthew, > > I would go for xfs, which is now supported in CentOS. This is what I use > for a 16 TB storage, with CentOS 5.3 (Rocks Cluster), and it woks fine. > No problem with lengthy fsck, as with ext3 (which does not support such > capacities). I did not try yet ext4... > > Alain > > -- > ========================================================== > Alain Péan - LPP/CNRS > Administrateur Système/Réseau > Laboratoire de Physique des Plasmas - UMR 7648 > Observatoire de Saint-Maur > 4, av de Neptune, Bat. A > 94100 Saint-Maur des Fossés > Tel : 01-45-11-42-39 - Fax : 01-48-89-44-33 > ========================================================== > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > I fully second Alain's opinion. An fsck on a 6 TB RAID6 containing about 30 million files takes over 10 hours. As for XFS, we are running it on a 25 TB array and so far there has been no trouble. Boris. Boris. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110412/02e491f4/attachment-0002.html>