Virtual Servers

Topics: Virtual machine, Virtual private server, X86 virtualization Pages: 7 (2149 words) Published: January 12, 2013
Virtual Servers

Table of Contents
I. Table of Contents
II. Introduction
III. Executive Summary
IV. Virtual Servers
a. What Are They?
b. What Do They Replace?
c. Requirements
V. Advantages
d. Maintenance
e. Green Solution
f. Disaster Recovery
VI. Conclusion
VII. References


As the technology timeline continues in full momentum, companies tend to struggle behind, trying to catch up. Where we talk about in this analysis is the topic of making telecommunications more efficient for companies on the server side. A server is dedicated software, programmed to host a specific service to specified clients or users. For example, when you access webpages on the internet, a server is hosting those webpages for you to access and view on your computer.

To run these servers takes much maintenance and energy along with the risks of potential disasters. Before virtualization was implemented, each server ran on their own physical machine. For large hosting companies, they would have what are called “server farms,” which are basically large server rooms where there can be from tens to hundreds of server machines. Not only is this a nightmare for maintenance, but energy consumption would be through the roof. Also, if one of those machines were to fail or give out, the whole server it was running will go down. If it was a major server that other servers were using, those other servers will go down as well. Disaster recovery for such an event is not only costly in time and money, but service inefficiency for the company clients as well.

Using single server machines are basically now a thing of the past when it comes to today’s available technology. Instead of having one machine host only one server, why not have it host more than one? This would not only solve energy cost, but as well as manageability, and decreased space consumption to where your servers are housed. In this analysis of server efficiency, we are going to introduce the benefits and reasons to using virtual servers.

Executive Summary

Virtualization is a quickly growing technology in today’s enterprise. Primary customers of the technology implementation are usually server hosts and datacenters. Reason being is the fact that using virtualization for this field helps save the company on money and from loss of service. The term is “virtual server,” which is a server on a virtual machine as software that runs on virtual server environment software on a physical machine. With this allows for multiple virtual machines to run at the same time all on one physical machine. That being said, you can have many servers running on one machine than doing it the old way of having one server per machine.

With this implementation, virtual servers will save the company on energy, maintenance, and much better disaster recovery options. This can be considered as a “green solution,” so where energy consumption would be much lower compared to the amount of servers that the company desires to run. By having the same amount of virtual servers as to where there were on single server machines, you will be reducing the amount of needed machines to where energy consumption will be much less.

The virtual machines that run the virtual servers are maintained through the virtual machine environment on the physical machine. Basically, the virtual machine hardware and components are all software defined. The only parts that will have to be concerned about is that of the physical machine itself. Still all together, part replacement and management would dramatically reduce.

When it comes to disasters, anything can happen. A disaster recovery plan is a crucial precaution to any company, especially in the IT department. Virtual servers offer a unique capability of virtually transferring from broken down machines to backup machines. To also add that whole virtual servers can be backed up to...

References: Do, T. (2011). Comparison of Allocation Schemes for Virutual Machines in Energy-Aware Server Farms. Computer Journal, 54(11), 1790-1797
Mearian, L. (2012). Flash Storage Can Help Some IT Operations. Computerworld,46(14), 8.
Scheier, R. L. (2012). Disaster Recovery On Double Duty. (Cover story). Computerworld, 46(6), 20-26.
Spinellis, D. (2012). Virtualize Me. IEEE Software, 29(5), 91-93. doi: 10.1109/MS.2012. 125
Sturdevant, C. (2011). Physical Servers Brace For Virtual Load. Eweek, 28(15), 14-16.
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