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:
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