[Gluster-users] Optimal XFS formatting?
harsha at gluster.com
Thu Oct 20 22:28:22 UTC 2011
Basic thumb rule
RAID 5 , 64k stripe size, use the following. If you have larger files
# xfs, 5 disks, 64K stripe, units in 512-byte sectors
mkfs -txfs -d sunit=$((64*2)) -d swidth=$((5*64*2))
Use for better memory alignment with Scheduler
echo "16" > /proc/sys/vm/page-cluster - and also don't forget to change
echo "256" > /sys/block/<disk>/queue/nr_requests - which should be
twice the queue_depth.
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