We are in the process of moving our production network, almost 40 servers
total, to the VMware ESX platform. The question I have is that we have
several 3-4 node SLES 9 clusters and are planning on moving them to ESX.
Are there any issues with running clusters on virtual hardware? We are
going to put no more than two virtual cluster nodes from each cluster on
each physical machine, which will help us cut down on real hardware, which
is one of the main reasons we are going to a virtual infrastructure.

Has anyone else made this change? If so how did your migration work out?
Good or bad, would you do it again? Does anyone have clustered nodes
running under XEN instead or along with ESX? I just want to make sure there
are no BIG potential issues prior to us starting this migration.

Tom Simpson