"I've been on the wrong end of those 'shoulds' before.. haha.. think I may just be able to wait a couple of weeks then.Many thanks Jeff.I had previously been led to believe that the best configuration for this setup (2x hosts sharing a san) was to just install the drivers on the R805s, connect them up with iscsi and use a third box to install MDSM and conifgure from there.Would you suggest that having the drivers and MDSM installed on anything connected to the SAN would be better then?"