1. The value of virtualization technology
Business system is very large, growing number of servers and other hardware devices, but not much technical personnel, while also facing the following four cases:
1) waste of resources: the system resource utilization is not high, and some long-term server is idle, and some server overload.
2) difficult to manage: the large number of device server, routing, firewall, and more difficult to manage
3) duplication: frequent reloading, redo the system, adjusting network equipment.
4) the parameters cumbersome: adjusting a single server CPU memory, disk size complicated process.
2. What is virtualization
1) The virtual technique refers to the virtual machine as a virtual logical terms from multiple machines, computers running simultaneously on a plurality of logical one computer, each computer can run a different logic Caozuojitong, and the application can be operating independently of each other and independent of each other in a space, thereby significantly improving the working efficiency of a computer.
2) virtualization software to use the method to redefine the division of IT resources, enables dynamic allocation of IT resources, flexible scheduling, cross-domain sharing, improve IT resource utilization and enable IT resources to truly become a social infrastructure and services in all walks of life in flexible applications.
3. Virtual implementation process
4. Virtualization Features
1) High efficiency: After the dispersion, the integration of separate server resources into a virtual resource pool, resource utilization is increased.
2) freely configurable: within the scope of the resource pool, you can add your own virtual machine, change the parameters of the virtual machine memory, storage space and so on.
3) Unified management: can clearly view the information server operating conditions, health status and other hardware through virtualization platform.
4) more stable:Through technical means virtualization technology, improve system stability, to ensure data security.