short RAID exercise for the interested

[Bryon Roche]

In today's issue of raid-fun: given proper paramters to xfs on top of a 
linux md raid6 left-asymmetric layout, a mountable, though incorrect xfs 
image will result when doing a mdadm --create --force -l 6 -p left-
symmetric layout.  The kernel claims this to be corruption of in-memory 
data.

I beg to differ, at least on the point of which memory the corruption 
resides. :)

/B