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If Internet adoption was the major tech concept of the late 90s and early 00s, the next big tech idea is virtualization – taking physical systems and digitizing them. Will this lead to a bubble and subsequent meltdown comparable to the tech-bubble of the early 2000s? It’s hard to predict, but what can be said is that virtualization is a somewhat confusing topic, especially when experts talk about server virtualization. The questions being asked by non techies are: What exactly is virtualization and is it right for my company?
Here is a brief overview of server virtualization, when you should use it and what you should look for in a virtualization solution.
What exactly is server virtualization?
In a nutshell, server virtualization is the practice of taking physical servers and digitizing them into virtual ones. In truth, this isn’t a fully virtual solution; your servers will continue to be on a physical server, just in virtual format.
Modern virtual solutions run multiple systems – commonly called instances – on one existing server. Traditionally, servers were inefficient especially when it came to use of physical resources and hardware – much was left under utilized. Virtualization ensures that use of physical resources and hardware are maximized, leading to users getting better value from servers.
This stacking of existing systems onto a smaller number of systems decreases acquisition and overhead costs – maintenance and power – while increasing the amount of physical space available for other functions including room to grow.
Virtualization is largely made possible due to increases made in technology. For example: A server with four processors costs about 1/10th of what it did a decade ago, and is more powerful. More power and cheaper cost has given companies of all sizes the capabilities to virtualize.
When should I employ server virtualization?
Virtualization is ideal for functions that are small to medium scale, ie., most simple or day-to-day business functions. If you have applications that are resource intensive and rely on more than one or two servers to be able to run, then it’s probably safer to not virtualize that particular service.
Most companies will run physical servers with virtual solutions to a maximum of 50% CPU usage during peak operations. If you have multiple servers running applications that, at peak, only use about 5% of the server’s power, these would be ideal to virtualize – you could virtualize up to 10 physical servers.
If an application uses 48% of available computing power at peak usage, it’s probably not the best candidate for virtualization as it will cause other instances on the same server to run slower, thus negating any advantages gained from virtualization.
What should I look for in a virtualization solution
When looking for a virtualization solution many companies will have different needs that they need to take into account. There are three factors that almost every company should be aware of when shopping for a virtualization solution:
There are many different aspects to take into account when virtualizing your systems, and if you don’t have the IT support or knowledge, it could be a complete failure. That’s why we recommend contacting us if you plan to virtualize. We have plans that can help, or will be able to point you in the right direction. So, call before you start.
Published on 7th December 2012 by Jeanne DeWitt.