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Microsoft scrubs Windows virtualization features

Is this another Vista-style 'death by a thousand cuts'? asks researcher

May 10, 2007 12:00 PM ET

Computerworld - A month after Microsoft Corp. pushed back the beta release of the Windows Server virtualization software, code-named Viridian, the company today dropped several key features to make its final deadline.

Saying, "Shipping is a feature, too," Mike Neil, the general manager of Microsoft's virtualization strategy, ticked off three features of Viridian that the development team cut from the upcoming add-on to Longhorn Server.

"We had some really tough decisions to make," said Neil. "We adjusted the feature set so that we can deliver a compelling solution for core virtualization scenarios while holding true to desired timelines."

Microsoft dropped live migration, which lets users shift running virtual machines between physical servers; the ability to add storage, processors, memory or network cards on the fly; and it pulled processor support back to a maximum of 16 cores, such as a server with four quad-core CPUs or a box with eight dual-core chips.

"We [will be] postponing these features to a future release of Windows Server virtualization," said Neil. He did not offer a timetable for that release, however.

Only last month, Neil postponed the first public beta of Windows Server virtualization from the first half of the year to the second half. At the time, he cited "performance and scalability" goals as reasons for the delay.

Neil said the beta would be ready for downloading when Longhorn Server goes to manufacturing; the final virtualization code is expected to ship within 180 days of Longhorn's launch.

Today's feature retreat was something of a deja vu. Windows Vista became notorious for gradually shedding features to make its late-2006 release to businesses. "This is somewhat typical of them, this little slip by slip," said Michael Cherry, analyst with Directions on Microsoft, a Kirkland, Wash., research firm. "It's the death by a thousand cuts.

"So the question has to be, is this just the first of many [feature] slips, or the only one?"

VMware, which unveiled a new version of its Workstation 6 hypervisor yesterday, already had a large lead over Microsoft in virtualization. With this delay, the gap gets bigger. "Without these features [in Windows Server virtualization], it makes VMware secure that much longer. Microsoft definitely has some catching up to do," Cherry said.

The cutbacks, along with the already-announced delay in Beta 3's release, are "disappointments" to users, said Cherry, but they may have an even larger impact on Microsoft. "This may delay some people's adoption of Longhorn," he said.

Still, Microsoft's making a smart, if tough, decision. "It's hard to get too upset, since in many ways they're doing the right thing," Cherry said. "It's better to let it slip than produce a poor product."

Read more about NOSes and Server Software in Computerworld's NOSes and Server Software Topic Center.



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