| Server virtualisation is the execution of applications to | | | | When using server virtualisation via virtual machines, |
| various machines throughout single or multiple servers. | | | | each user has a virtual copy of the hardware that is |
| Each of the user-operated machines has its own | | | | being used and stored on the server. It also allows |
| operating system but may also have access to | | | | the user's computer to run multiple operating |
| additional operating systems if required. This process | | | | systems if required to run the company software. |
| is helpful if additional room is required to store | | | | The server sends instructions to the computer that |
| information but quick access is a requirement. | | | | ensures the user has the appropriate credentials to |
| Many large companies use this method, as it is more | | | | access the software. |
| efficient to back up information in case of breach or | | | | The paravirtual machine is similar to the virtual |
| system failure. Downtime and system compromises | | | | machine. Multiple operating systems are available if |
| cause a loss in revenue and less productivity in the | | | | needed, and the user must have the proper pass |
| workplace. Since it is ran off-site, it is more cost | | | | codes or set up to access the paravirtual machine. In |
| efficient as it does not need company sponsored | | | | the case of this set up, however, the user has |
| electricity to heat, cool, or power the servers. A | | | | limited privileges. |
| reduction in hardware and software, along with | | | | The operating system model requires all guests to |
| fewer personnel also increases the savings. | | | | use the exact same operating system as the one |
| Companies are also able to safeguard additional | | | | based on the server. It also requires all computers to |
| programs and applications by having this additional | | | | prevent system information from transferring back |
| space and the ability to do so. It also allows | | | | and forth. This eliminates the spread of viruses or |
| companies to expand their businesses and have | | | | failures from computer to computer. |
| additional room for productivity and employee | | | | Regardless of the server virtualisation used, this is a |
| placement. | | | | safe and secure way for companies to hold valuable |
| There are three different types of server | | | | information. It prevents on-site tampering in most |
| virtualisations. These different virtualisation methods | | | | cases, is cost-efficient to maintain. By paying another |
| allow businesses to have more options when deciding | | | | company to host this information, the money saved |
| what information should be stored off-site. These | | | | can be capital to invest into the company and |
| types include virtual machine, paravirtual, and the | | | | expand or upgrade its current resources. |
| operation system. | | | | |