What is failover?
Failover is the process of switching to a redundant or standby computer server, system, hardware component or network.Other terms also used to describe this capability include role-swap or switching.
Why is failover important?
Failover is an important fault tolerance function of mission-critical systems that rely on near-constant availability. Failover automatically and transparently redirects requests from the failed or down system to the backup system that mimics the operations of the primary system.
When the failover process is initiated due to a failure or abnormal termination of an active application, server, system, or hardware component, it is considered an unplanned failover. A failover can also be initiated by administrators to facilitate maintenance of upgrading of the primary system. This is considered a planned failover.
How Precisely can help
Incorporate failover into your availability strategy with Precisely’s high availability software for IBM Power Systems. Whether your business is large or small, Precisely offers a variety of simple, scalable, full-featured high availability, and disaster recovery products to suit your every need.