• On TechRepublic: Windows 7: Slower to boot than Vista?
April 9, 2009 9:40 AM PDT

Why not more talk about Open Virtualization Format?

by Jon Oltsik

By now, everyone in our industry has heard a future IT vision where virtual machines (VMs) migrate from one physical server to another for load balancing, disaster recovery, or maintenance windows. Sounds great in theory, but things in IT aren't this simple. Each VM actually represents an operating system and some associated services or applications. When VMs move around, will they maintain their configuration state or need to be reconfigured? Will multi-tiered applications know that one of their peers has moved to a new neighborhood? Will the network recognize the VM as an old friend or will it assume that it is a new entity? These questions need real answers--not PowerPoint slides.

Fortunately, some very smart people are already thinking about how to solve these dicey problems. The good folks at the Distributed Management Task Force recently published a standard called the Open Virtualization Format (OVF). In geek land, OVF is a way to describe the properties of VMs from the network layer up to the application so they can retain "state" as they are created or moved. As an analogy, think of OVF as a virtual machine's passport and visa. As the VM travels around, OVF gives it an identity, some personal information, and a description about what it can and can't do in its new location.

Good--and necessary--stuff. OVF is no fly-by-night effort, rather it is supported by a who's who of virtualization and industry bigwigs including Citrix, Dell, HP, IBM, Intel, Microsoft, Sun, Symantec, and VMware.

It's clear to me and my colleague, Mr. Virtualization, Mark Bowker, that OVF is exactly what the industry needs to push server virtualization toward more dynamic data centers and integration with cloud computing. What's somewhat of a mystery is why more technology vendors either don't know what OVF is or why they aren't supporting it. For example, Cisco's recent UCS announcement was all about taking server virtualization to a new plateau but there was no mention of OVF. When I asked company officials specifically about this, they told me that they aren't using OVF in UCS. To be fair, Cisco is certainly open to using OVF in the future, but I think my question caught them off guard. John Chamber's folks must have thought, "who is this guy and how does he know about OVF?"

Like many standards, my guess is that OVF is such a nerdy topic that few outside a few industry engineers know what the heck it is. To me, OVF is one standard that has tons of potential--if people know about it and use it. The industry has a responsibility to do a better job of communicating about these types of standards before vendors simply usurp the process with their own proprietary alternative. It would be an absolute crime if this happens.

Jon Oltsik is a senior analyst at the Enterprise Strategy Group. He is not an employee of CNET.
Recent posts from Business Tech
Microsoft releases SDK for Facebook
EC formally objects to Oracle buying Sun
Compuware completes Gomez buyout
VMware elevates its desktop virtualization view
PC processor shipments break record
After 5 years, Firefox faces new challenges
Cisco ruffles feathers with new collaboration tools
Nvidia CEO says 'no' to Intel-compatible chip
Add a Comment (Log in or register)
by getwired April 9, 2009 11:11 AM PDT
It's a nice initiative, but unfortunately, state separation in Windows (the predominantly virtualized guest OS (to use VMware's term) is atrocious. The idea of "hydra booting" Windows has been a goal for more than a decade - but until the state tarball of a) network state b) system state c) application state and d) user state is unwound in Windows, OVF will only be a dream (with Windows, anyway). And even after then it will only work on _new_ versions of Windows, not the legacy platforms that make up the majority of virtualized guests.

This same state separation is the thing that made products like Microsoft AppCenter Server necessary, and yet they are the same things that killed it. They are also the things that will hamper Microsoft's use in a truly "dynamic" way, like initiatives being pioneered by Amazon(EC2) and others require.
Reply to this comment
by April 9, 2009 2:34 PM PDT
It will be interesting to see how people respond to the new virtualbox 2.2 which will allow exports and imports of OVF VMs.
Reply to this comment
advertisement

After 5 years, Firefox faces new challenges

Mozilla helped reshape the Web since releasing Firefox 1.0 five years ago. Now it's got a reawakened Microsoft and Google Chrome to reckon with.

There's a map for that: GPS or smartphone?

Almost every handset comes with mapping software these days, but standalone GPS devices are becoming more affordable than ever.

advertisement

About Business Tech

Your destination for the latest news on enterprise-level information technology, from chip research and server design to software issues including programming, open source and patents.

Add this feed to your online news reader

Business Tech topics

advertisement
advertisement

Inside CNET News

Scroll Left Scroll Right