Changing XFS sunit and swidth parameters on RAID 5
Hi all,
I would like to ask something regarding XFS and RAID 5: I've built raid 5 from 4 1TB devices using 256KB chunk size. I wanted to tweak XFS on it a little so I formatted it with Code:
mkfs.xfs -f -L DATA -l internal,size=128m -d agcount=30,su=256k,sw=3 /dev/md0 Code:
eta-data=/dev/md0 isize=256 agcount=30, agsize=24419072 blks Even if I try to mount it with these options set to proper numbers, xfs_info still provides same output. Any ideas or suggestions why this happens? Regards, Marek |
Solved
Solved:
In reference to http://oss.sgi.com/archives/xfs/2003-04/msg00145.html where it is stated that: Quote:
Anyway, formatting without parameters resulted in the same numbers because xfs' built-in optimization for software raids. |
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