How to tame virtualization sprawl

摘要

Companies have em-braced virtualization for the many efficiencies the technology brings to the data center. But with the increasing use of virtualization comes an increasing challenge: managing and securing all those virtual server instances. In fact, virtualization's benefits are eroded when virtual machines are not controlled by a life-cycle process. VM sprawl-the creation of VMs without regard for ongoing utilization monitoring, desired-state configuration management, or an automated process for correlating VM and physical host performance characteristics-can be remediated in a cost-effective manner if IT managers get the balance right between ease of VM creation and management oversight.