Re: mkfs.xfs option for RAID

[Andi Kleen <ak@xxxxxxx>]

On Fri, May 25, 2001 at 07:26:27AM -0400, Danny Cox wrote:
> "T.Hattori" wrote:
> > 
> > Hi.
> > For maximam performance and efficient performance, EXT2 file systems can
> > be built with "-b" & "-R stride= " options.
> > For instance, to match a normal RAID controller's 64KB default stripe
> > size, the command  'mke2fs -b 4096 -R stride=16 <device>' is
> > appropriate. ( 4KB * 16 = 64KB)
> > 
> > Can we tune XFS like this using -r option or others?
> 
>       Yes!  In fact, mkfs.xfs "notices" if the block device is LVM or RAID,
> and sets it's parameters automatically.  FYI, they are:

Are you sure it works for MD automatically too? When I'm reading the code
correctly only LVM_BLK_MAJOR is checked for.

-Andi