Failover method and computer system

A program embodied in computer readable storage medium executed by a third computer for setting up the management module on the standby computer when a failure has occurred in a first computer which performs an operation or a second computer which has a management module which manages the first computer and the standby computer, said program effective to control said third computer to perform the steps of:

• acquiring configuration information of the first computer, the second computer and the standby computer from the management module of the second computer;
• determining whether the failure occurred in the second computer;
• notifying the second computer that the failure occurred in the first computer;
• and
• setting up the management module on the standby computer based on the acquired configuration information in a case of detecting the failure occurred in the second computer.

A computer system having a first computer which performs an operation, a standby computer, a second computer which has a management module which manages the first computer and the standby computer, and a third computer which manages start and stop of the standby computer, wherein

• the third computer acquires configuration information of the first computer, the second computer and the standby computer from the management module of the second computer,
• the third computer determines whether a failure occurred in the second computer,
• the third computer notifies the second computer that a failure has occurred in the first computer,
• the second computer which received the notification of the failure from the third computer takes over the operation from the first computer to the standby computer, and
• the third computer sets up the management module on the standby computer succeed based on the acquired configuration information in a case of detecting the failure occurred in the second computer.