Switchover

Under a switchover is to be understood in information technology, a change from a primary system to a standby system. Unlike a failover, with an unplanned change to the standby system is referred to and which occurs, for example, due to the failure of the primary system or the network to the primary system, under a Switch Over a planned change is understood, which is initiated selectively by a system administrator. A switchover is executed, for example, to check the functionality of the standby system, or to provide for maintenance of the primary system, the services temporarily on the standby system.

A switchover can be made ​​possible by a cluster manager software or Standby databases by extensions of the database vendors or other information providers.