Hi :) On Wed, Apr 17, 2013 at 3:18 PM, Robert Bennett <rbennett@xxxxxxxxxxxxxxxxx> wrote: > > We have been running our Storage on XFS for over three years now and are > extremely happy. We are running each file system on LSI Hardware Raid with > 3 RAID groups of 12+2 with 3 Hot Spares, and 8 file systems per Head Node. > These are running on 2TB SAS HDDs. The individual file system size is 66TB > in this configuration. The time has come to look into moving to 3TB SAS > HDDs. With very rudimentary math, this should move us to the neighborhood > of 99TB per file system. Our OS is linux 2.6.32-279.11.1.el6.x86_64. > > The question is - does anyone have experience with this type of > configuration and in particular with 3TB HDDs and a file system size of > 99TB? The rebuild time with 2TB drives is ~ 24 hours. Should I expect the > rebuild time for the 3TB drives to be ~ 36 hours? > > Thanks for all the hard work all of you do on a file system that continues > to dazzle. When you say "LSI Hardware Raid", I assume it's some sort of NetApp/Engenio storage array (aka E2600, E2400, E5500). Am I correct? If so, you should try the new their new feature Dynamic Disk Pooling: http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3309.pdf&cc=us http://www.netapp.com/us/technology/dynamic-disk-pools.aspx It lowers your rebuild times quite a lot. If you mean internal LSI RAID PCIe controllers in a server ... can't be of much help here :( HTH Rafa _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
