Could you move this article to the appropriate location and modify my original subject to " DSS V6 / XenServer 5.6 / ~20 VMs advice please" ? Thanks. I'll definitely be adding relevant information as I get further into my configuration. I think more data on iSCSI / MPIO / Xenserver would be good for the community. I'll post my results - but yeah - move the thread. I've got a blog, I could post a best practices article there too as I delve further into the fire.