RHEL6.x + XFS that comes w/ Red Hat's scalable file system add on. We have two PowerVault MD3260e's each configured with a 30 disk RAID10 (15 RAID groups) exposed to our server. Segment size is 128K (in Dell's world I'm not sure if this means my stripe width is 128K*15?) Have set up a concatenated LVM volume on top of these two "virtual disks" (with lvcreate -i 2). By default LVM says it's used a stripe width of 64K. # lvs -o path,size,stripes,stripe_size Path LSize #Str Stripe /dev/agsfac_vg00/lv00 100.00t 2 64.00k Unsure if these defaults should be adjusted. I'm trying to figure out the appropriate sw/su values to use per: http://xfs.org/index.php/XFS_FAQ#Q:_How_to_calculate_the_correct_sunit.2Cswidth_values_for_optimal_performance Am considering either just going with defaults (XFS should pull from LVM I think) or doing something like sw=2,su=128K. However, maybe I should be doing sw=2,su=1920K? And perhaps my LVM stripe width should be adjusted? Thanks, Ray _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
