Virtual machines, the technology that VMware helped pioneer, allow one computer to act as many, whether it's a Mac running Windows and the Mac operating system at the same time or a massive server running multiple instances of Windows and Linux simultaneously. Once a niche technology,is expanding rapidly as businesses try to get more bang for their server buck.
And VMware has made itself nearly synonymous with the technology.
"It's almost like Xerox or Kleenex," said longtime industry player David Marshall, who authored the book Advanced Server Virtualization and also writes the VMblog.com, which is not affiliated with the company.
Investors rewarded the company's prowess Tuesday, sending shares of the stock as high as $55.50 a share, closing at $51, up from $29 a share where the stock was
"It further validates not just what VMware is doing, but the entire virtualization space," Marshall said.
Although VMware is the clear leader in the market, it is far from the only company eyeing virtualization.
Both open-source rivals and commercial software makers see a chance to win business customers by offering similar features to VMware, but at a far lower price.
And the biggest name in software is also betting big on virtualization. Microsoft entered the space several years ago, with its 2003. More recently, it has shifted much of its work to a new type of virtual machine, known as a hypervisor, that it is building into Windows Server. The technology, code-named Viridian, is set to debut as an add-on to Windows Server 2008 and is due within 180 days of the release of the new Server operating system.
Microsoft has faced some challenges on its road to virtualization. The company recently had tofrom Viridian, including a live migration feature, to keep the product on schedule.
But it's still in its early days, Microsoft insists.
"Given that less than 5 percent of servers are virtualized today, we believe it's still a very nascent segment of the market with lots of growth potential," said Larry Orecklin, a general manager in Microsoft's System Center and virtualization business. By integrating virtualization into its server operating system and into its existing lineup of management tools, Microsoft is hoping to make it more palatable to the masses.
Customers aren't waiting for Microsoft, though. Marshall said that about a quarter of new servers are being virtualized.
And though it still represents only a fraction of the market, virtualization is already shaking up the technology industry. It's changing the way servers are built, with chipmakers like Intel building support into their chips. And it's changing the way software makers are pricing their products.
"I do expect it will have an effect on what servers look like, what types of configurations people buy," said Illuminata analyst Gordon Haff. "I don't think it's really all that clear today exactly how that's going to play out in detail."
What is clear, he said, is that companies are no longer focused on just how much raw computing power they can get.
"We're kind of at this point right now where we have tons of hardware horsepower throughput, etc. and we are being much more limited by the ability of people to manage and use things," Haff said. "People really are willing to give up some of the underlying raw efficiency of hardware in return for something that, as a practical matter, users and operators can use in a more efficient way."
The shift to virtualization has caused some turmoil for the rest of the software industry, however, which has traditionally priced its products based on the number of servers, or in some cases the number of server processors, that are running the code. Some interim pricing moves have largely addressed the current situations, but fundamentally, Haff said, software pricing will have to change more as virtualization takes hold.
"I expect that we are going to tend to see more software being licensed per-employee or per-use or metrics that are really much more tied toward the value that software is delivering as measured directly," Haff said.
One company that has clearly profited from the shift is storage giant EMC, whichfor VMware in 2004. The company sold just a 10 percent stake in the company this week, but raised roughly $900 million, with the total market capitalization of the company now hovering north of $10 billion.
"It turns out EMC really got a pretty good bargain there, even though at the time people thought it was an awful lot of money," Haff said.
Virtualization is not the only technology looking for Wall Street cash these days. About 100 companies have filed for stock offerings and are expected to go public sometime this year, including a number of technology companies, said.
One tech company that has garnered some attention is registration filing fee with the Securities and Exchange Commission, which it filed last month.. The company hopes to raise $75 million, based on its IPO registration filing fee with the Securities and Exchange Commission. Computer monitor maker ViewSonic has also lined up at the IPO gate, aiming to raise $143.8 million with its offering, according to its
But they will have a tough act to catch the imagination of investors the way VMware has done. And that is largely because virtualization is so widely seen as the future of the corporate data center.
"I don't see it as a flash in the pan," author and blogger Marshall said.
Marshall heads business development and marketing for InovaWave, a privately held company that has a software product designed to speed up virtualization and allow a single server to host more virtual machines than would otherwise be possible by improving input/output tasks such as writing to disk.
Marshall sees a growing market that opens up significant opportunities for companies that can find a niche. But that doesn't mean that Microsoft and others that want to target VMware's market will have an easy go of it.
"They got almost a billion dollars from that IPO," Marshall said. "Part of that money is going to be used to acquire new technology and hire engineers."
News.com's Dawn Kawamoto contributed to this report.