Network Instruments polled 120 network managers, engineers, and IT executives at Interop to learn how IT organizations are putting server and desktop virtualization technology to use. Fifty-five percent reported they virtualized mission-critical servers, including e-mail and Web servers, and another 50 percent said they run DNS and DHCP servers on virtual
machines. And nearly 40 percent have already extended virtualization to their desktop environments.
Yet 55 percent told the network analysis vendor they experience more problems than benefits with the technology, while the remaining 45 percent said they had realized the
benefits of virtualization. Among the problems were a lack of visibility and tools to troubleshoot performance problems in virtual environments for 27 percent of respondents. More than one-fourth of those polled at Interop cited a lack of training on virtual infrastructure, and 21 percent expressed concern over an inability to secure the infrastructure.