Virtualization is a technology that separates the hardware from the operating system to allow for greater efficiency and flexibility of the entire system. It allows uninterrupted work more virtual machines of different operating systems, which do not affect each other, on the same physical platform, which means that each virtual machine has dedicated its resources - RAM, CPU, NIC, HDD...
Virtual machines are encapsulated into files, which allows us to quickly store and copy the existing and creating new ones. Such technologies in real-life situations means that the complete virtual machine - virtual HW, BIOS, operating system and fully configured applications can migrate from one physical server to another without having a downtime.
Such a structure provides significant advantages in functionality IT infrastrukure on the classic. Some of the advantages are as follows:
- server consolidation and increased utilization hardware. Research has shown that the current usage of hardware and only 10 - 15% which would be virtualization could be increased to 80%. Would reduce the amount of hardware, electric power, cooling and finally a place that servers take from 50 - 70%. This would reduce the cost and maintenance of a request for a new machine to its realization, the past few minutes for a few days.
- minimizing downtime and ensuring the smooth operation. Virtualization by this eliminate planned downtime for maintenance, reduces the possibility of time-and downtime, and accelerate disaster recovery up to 85%.
- facilitate testing and developing applications. Enables the rapid development creating - a test environment, and slow return to a previous state without re-configuring to come to him.
- management and protection of desktops. Installation and management of desktop computer with a central location, easy expansion and secure environment is not controlled desktop computers, provides access to thin clients access to a controlled environment.