However, Red Hat CEO Jim Whitehurst sees virtualization software vendor VMware as "our largest competitor," he said in an interview after his keynote at the Red Hat Summit, being held this week in Boston.
It is not so much that Red Hat salespeople will bump into VMware salespeople at the offices of potential customers, but that the companies share an overall vision of cloud computing, even as they differ on the approach of providing cloud services.
"When you start thinking about who is defining cloud-based architectures, it's us and them," he said. "We're the only two companies that have the components to really do cloud."
While admitting kinship with VMware, Whitehurst was quick to point out what he saw as the flaws in VMware's approach.
"Technically, it's a perfectly fine vision. Commercially, I worry about the lock-in and VMware defining the stack," he said.
Cloud computing favors open source, Whitehurst argued. "Modular layered architectures are built on open source," he said. He noted that the typical proprietary license models make it difficult to build a cloud, given the licensing and lock-in concerns. "Who in their right mind would roll out a 50,000 server environment locked into one vendor? If you buy ESX and three years later you get a renewal, how much will [VMware] charge you?"
VMware declined to comment for this story.
While the Red Hat Enterprise Linux operating system is widely used in enterprises, the company only recently introduced its own virtualization software, a commercial version of the open source Kernel-based Virtual Machine (KVM). VMware dominates the market for server virtualization software.
At the Red Hat Summit, the company announced its Cloud Computing Foundations, a set of software, reference architecture and consulting services that it says can help organizations run hybrid clouds, that is to say run applications that can be easily migrated from their own data center's private clouds to public clouds.
At the press conference announcing the Foundations, Red Hat head of virtualization Navin Thadani claimed that Red Hat's virtualization package, Red Hat Enterprise Virtualization (RHEV) offers most of the functionality of a VMware ESX set-up -- with the notable exception of live migration -- but is less expensive than VMware's software.
But the company also stressed that customers could use VMware with Foundations as well. "With Cloud Foundations, you can build a Red Hat Cloud on ESX. We're not saying you have to buy our whole stack," he said. "You don't have to tie the hypervisor to the management tools. Those are separate decisions."
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