Commissioned by virtualization management vendor Veeam and conducted by research group Vanson Bourne, the V-Index survey of more than 500 large businesses found that 92 percent have adopted virtualization, and deployed an average of 470 virtual machines. Although VMware is still the most widely used, it turns out multiple hypervisors in the same data center is fast becoming the norm. And with VMware's latest price increases, Microsoft and Citrix have a chance to chip into its lead.
[ Doing server virtualization right is not so simple. InfoWorld's expert contributors show you how to get it right in this 24-page "Server Virtualization Deep Dive" PDF guide. ]
IN PICTURES: The hottest virtualization products at VMworld
Fully 58 percent of companies using virtualization call VMware their primary hypervisor, while 20.2 percent put Citrix at the top of the list and 18.6 percent count Hyper-V first.
Yet when counting all virtualization use, 84 percent of virtualizing companies use VMware, 61 percent use Hyper-V, 55.4 percent use Citrix's XenServer and 12 percent use other hypervisors. Only 3 percent use an "other" hypervisor as their main one.
Vanson Bourne surveyed IT decision makers at 544 organizations in the United States, United Kingdom, France and Germany, each of which has at least 1,000 employees. Exactly half of the companies use virtualization.
The results suggest that Microsoft, until recently an also-ran in the virtualization market, is making progress. But with VMware being counted as the main hypervisor for nearly 60 percent of customers, it seems VMware is still the top choice for running mission critical applications.
Veeam said it will update the survey every three months.
While Veeam's survey provides a snapshot of today's usage, IDC's latest quarterly numbers show that customers are continuing to buy VMware products at a rapid pace.
In Q1 2011, worldwide sales of new virtualization licenses deployed into production on new or existing servers was 58 percent VMware, 26 percent Microsoft and 8 percent Citrix, with others accounting for the remainder, according to IDC.
Overall, 20 percent of new x86 servers have virtualization technology pre-installed or installed at the time of deployment, IDC also says. While Veeam's numbers suggest that most enterprises are using virtualization, the IDC survey shows that doesn't mean most of their servers are virtualized.
In fact, Veeam's survey also showed that just under 40 percent of servers are virtualized, with an average consolidation ratio of six virtual servers per host.