on this page http://wiki.debian.org/iSCSI/open-iscsi it says :
You can then mount the new device, but under most situation, you
will want to use LABEL= syntax in /etc/fstab (see e2label).
I assume this is because the device name can change across
restarts. Since I'm not mounting the volume in Dom0, just passing it
to the guest in a "disk = [ 'phy:v ..." line, any suggestions on the
best way to deal with this ?