Virtualization addresses IT’s most pressing challenge: the infrastructure sprawl that compels IT departments to channel 70 percent of their budget into maintenance, leaving scant resources for business-building innovation. The difficulty stems from the architecture of today’s X86 computers: they’re designed to run just one operating system and application at a time. As a result, even small data centers have to deploy many servers, each operating at just five percent to 15 percent of capacity - highly inefficient by any standard. Virtualization software solves the problem by enabling several operating systems and applications to run on one physical server or “host.” Each self-contained “virtual machine” is isolated from the others, and uses as much of the host’s computing resources as it requires.
The benefits of virtualization are nothing short of dramatic: Up to 80 percent greater utilization of every server. Reductions in hardware requirements by a ratio of 10:1 or better. Capital and operations expenses cut by half, with annual savings of more than $1,500 for each server virtualized. Robust, affordable high availability.
With software-defined networking, virtualization principles are applied to network resources, abstracting, pooling and automating them to transcend the limitations of rigid physical architectures. Network services are assigned to each application and remain with it, elastically adapting to its changing requirements. Virtualized networking simplifies provisioning, enhances scalability, simplifies management, and lowers operational costs.
Security can also be delivered as an efficient, software-defined service - decoupled from physical devices, aggregated, and applied precisely where needed without hardware upgrades. Virtual workloads can be moved and scaled free from security constraints and the need for specialized appliances. Integrated firewalling and optimized gateway services protect the network edge. And VMware's open architecture lets you integrate your existing security investments and the latest third-party innovations.