The UCS architecture is built on the promise of power and scalability. It's made to handle workloads much greater than the five to 10 virtual machines (VMs) per physical server normally seen on today's machines.
But Burton Group analyst Chris Wolf generally cautions his clients against an excess of VM density. "Too much virtual machine density puts virtual machine availability at risk when a server failure takes place," Wolf says.
While that may be true, greater efficiency and cost savings occur with greater VM density, which is a key draw of UCS. It's also why the major virtualization platform vendors like VMware, Citrix and Microsoft are partnering with Cisco to get their stacks on the hardware.
VMware got the most face time among those companies at the unveiling of UCS, but Microsoft has a lot to offer. In fact, it's pushing a soup-to-nuts suite of offerings that includes Windows Server 2008, System Center and SQL Server.
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