Some time ago I asked for advice regarding a 3ware + raid setup on XFS,
and I got a LOT of help, such as
- what kind of RAID is recommended,
- be careful with WD drives,
- use LVM2 + XFS, etc.
Finally I have all the 4x250Gb WD disks arranged in hardware RAID-5, and I
am ready to make xfs under RH9.0, kernel 2.4.23. I remember a discussion
on sunit, swidth, logsize, and external/internal log, and frankly, after
looking back to the messages, I feel confused.
I'd appreciate a little guidance on what exact options should I use with
mkfs.xfs, such as:
mkfs.xfs -d su=?,sw=? -l size=?,sunit=?? ...
What I know is that the hw RAID-5 stripe size is 64K. I have 4 disks =>
sw=3. I will have typically 8-16Mb files on the disk plus lots small files
(i.e. I can't specify well in advance).