By utilizing server virtualization, a company's computer system can run more efficiently, which generates cost savings for the company. Traditionally, one of these servers has run one operating system only. With virtualization, a single server can be essentially "split" into two or more. After the split, each of them can run it's own operating system. The operating systems do not even have to be the same -- one partition of the virtual server can run Windows XP, the other Linux.
Server virtualization (also called Virtual Dedicated Server, or VDS) provides many benefits for the company. The first is simply cutting down the number of servers required for business operations. It has been estimated that a company's server generally runs at 25% of its capacity. Rather than purchasing additional servers, many company servers have the capacity to be split. Having fewer servers produces benefits beyond just reducing the money the company is spending on servers. Having fewer physical servers means that the space that would have been used for servers can now be allocated to another (potentially more productive) use. With fewer servers producing heat, the company can cut down on costs to air condition the server room. Additionally, having fewer servers means there are less of them to maintain. This can produce a cost savings if the number of IT staff can be reduced. Even if the number of people on staff remains the same, their time can be spent on more productive tasks, rather than having to spend a lot of time on maintenance.
Virtualizing a server can provide for more system flexibility. As stated above, splitting a one can allow a company to utilize two operating systems without having to purchase additional company resources. Upgrades and changing an application on one server is less risky if the server is split. If an upgrade to one part of a split server is unsuccessful, the other part of the system will continue to work as normal. This can minimize data loss and/or time spent recovering or re-entering data that has been lost. Additionally, this can minimize the impact of a failure upgrade on the rest of the staff in a business. In case of problems with one side of the server, they can simply use the other part of the server partition.
The use of this type of technology is becoming increasingly popular due to the time and money it can save.
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