video on demandwriting to a volume that is an ls-volume will fail if the rootvolume is mounted as /
writing to a volume that is an ls-volume will succeed (to the N-blade that houses the rw-data-vol) if
the rootvolume is mounted as /.admin
with pNFS the pnfs client will reserve referral to use the lif that hosts the rw volume
pnfs will have to be enabled in the cluster