Virtualization technology with the advent of computer-generated and developed, virtualization means the abstraction of computer resources.
Virtualization technology has become a key technology in building cloud computing environment.
The core idea of virtualization technology is the use of software or firmware hypervisor virtualization layer composed,
the physical resource mapping virtual resources
. You can install and deploy multiple virtual machines on the virtual resources, physical resources shared by multiple users.
With the development of cloud computing, traditional data center gradual transition to a virtualized data center that
uses virtualization technology to the physical resources of the original data center consolidation abstract.
Four major virtualization technologies:
(1) server virtualization
One or more virtual servers to the physical servers on multiple logical
(2) storage virtualization
The uniform distribution of heterogeneous storage devices into one or a few large storage pool
(3) network virtualization
Add a layer of abstraction between network users and the underlying physical network
(4) Desktop Virtualization