Patent ID: 8468383
Filing Date: 2013-06-18
Classification: G06F

Abstract:
1. A failover system, comprising: a primary server operable at one or more power states, including a normal operating state in which program code is executed, the primary server being configured to dynamically generate a backup for the results of the executed program code while in the normal operating state; a redundant server coupled to the primary server, the redundant server operable at the normal operating state or one or more reduced power states consuming less power than in the normal operating state, the redundant server configured to dynamically receive the backup from the primary server and, in response to a failure of the primary server, to assume the workload of the primary server according to the backup; and a controller for managing the power state of the redundant server, including maintaining the redundant server in one of the reduced power states prior to detecting a failure of the primary server and for increasing the power state of the redundant server sufficiently to assume the workload of the primary server in response to the failure of the primary server.