Virtual Machine, get rid of the physical restrictions

Times of keeping own server under a desk at the reception are long gone, it turns out that we actually observe dusk of separate server infrastructure rooms inside company premises and all thanks to the virtual machines.

The virtual machine is not a new concept, but with the development of cloud computing its implementation has gained in popularity, mainly due to the performance and scalability that cloud computing provides.

Abandoning the "in-house" solutions gives us a lot of benefits and especially the financial aspects. Companies holding servers at premise, have to deal with the maintenance and continuous improvement of their parameters. Providers of virtual machines take care of this issue.


Benefits of virtualization

Note that each time the server is down - either because of failure or because of modernization, it is associated with stop of company infrastructure. E-mail or CRM will stop working and worse, the company will become invisible to their customers (shop or web page will no longer be available online).

In the case of the virtual machine, appropriate mechanisms will work to move the company infrastructure to another physical machine, within cloud.


How does a virtual machine work?

It is a runtime environment that controls all software references to hardware and to the operating system, which is running. In other words, a virtual server provides everything, that physical server would provided for the application (processing power, memory, I/O operations, etc.), but in a virtualized manner.

Virtual servers from the user's perspective are no different from the physical server. They operate under the control of the operating system, installed from prepared by the provider of virtual machine images (these are usually various distributions of Linux, Windows Server, FreeBSD or Solaris). They are characterized by specific performance, regulated number of virtual processors and memory size.


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