Michael Guntsche wrote:
That's true but only if you create a XFS filesystem on the md device
directly. If LVM is in between mkfs.xfs cannot figure it out and you
have to specify the values yourself.
I wondered about that after I wrote and found this in the mkfs.xfs man page:
"sw=value
suboption is an alternative to using swidth. The sw suboption is used
to specify the stripe width for a RAID device or striped logical
volume. The value is expressed as a multiplier of the stripe unit,
usually the same as the number of stripe members in the logical volume
configuration, or data disks in a RAID device.
When a filesystem is created on a logical volume device, mkfs.xfs will
automatically query the logical volume for appropriate sunit and swidth
values."
So perhaps it'll do the same on LVM?
Regards,
Richard
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