xfs_fsr, sunit, and swidth

Dave Hall
2013-03-13T18:11:25Z

Does xfs_fsr react in any way to the sunit and swidth attributes of the
file system? In other words, with an XFS filesytem set up directly on a
hardware RAID, it is recommended that the mount command be changed to
specify sunit and swidth values that reflect the new geometry of the
RAID. In my case, these values were not specified on the mkfs.xfs of a
rather large file system running on a RAID 6 array. I am wondering
adding sunit and swidth parameters to the fstab will cause xfs_fsr to do
anything different than it is already doing. Most importantly, will it
improve performace in any way?

Thanks.

-Dave

--
Dave Hall
Binghamton University
kdhall@binghamton.edu
607-760-2328 (Cell)
607-777-4641 (Office)