They found that while RHEL is a good distribution in some ways, its far from a "ready, set, go" virtualization platform.
While I havent done as much work with this distribution as they have, I have done some work with RHEL 5.
Then, as now, I thought what Red Hat is trying to do with virtualization is commendable. The Linux folks from Raleigh, N.C., are trying to make both installing and managing virtual machines much easier.
Unfortunately, I have to agree with eWEEK Labs Advanced Technologies Analyst Jason Brooks when he said, "RHEL 5s tools for creating and managing guest machines are pretty Spartan, and our experiences installing and running Windows Server 2003 and RHEL 5 guests contained more troubleshooting and Googling than we would have liked."
I can see the intention there to make running virtual machines a lot easier.
Its just that, as Brooks found, good intentions havent led to good works yet.