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Server virtualization technology allows multiple, independent operating systems to run “virtually” on a single server, making the most of each physical server’s capacity. In effect, it creates multiple, independent computers on each server. For example, instead of running 10 servers at 20 percent capacity each — and just one or a small handful of applications on each server — virtualization enables many businesses to use only two or three servers, each at close to maximum capacity.
Eliminating physical machinery reduces power consumption – both the power to run the servers and the power to cool the server room. It also simplifies maintenance while keeping the same amount of computing power. When implemented correctly, server virtualization also frees up financial and human resources for more strategic initiatives. Consolidating resources through virtualization can reduce server-related costs by an estimated 50 to 70 percent.
Server virtualization also allows businesses to repurpose their information technology (IT) infrastructure rapidly if necessary, providing greater up time, higher fault tolerance and improved operational continuity in the event of a disaster or failure. However, poor planning decisions can eat away at the very savings that server virtualization offers.
If you’re considering the benefits that virtualized severs can bring to your small business, the following best practice tips will help you get the job done right.
1. Base your virtualization investment decisions on reality, not theory. Conduct a comprehensive assessment of your server environment to identify which pieces of hardware you can — and should — virtualize. Free tools from companies such as VMware or Microsoft can help identify exactly which servers are good candidates for virtualization, enabling you plan for your specific needs
2. Before virtualizing the servers your assessment targets, be certain that the software applications you use are compatible with virtualization software. Qualified solution providers and most virtualization software vendors will help you determine if your server environment and applications are suitable for virtualization.
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