Patent ID: 7539755

Claim:
A method for regulating real-time the heartbeat frequency of the host according to the user-requested frequency by making use of a Cluster System, including at least a host and a backup host, which are kept in touch with each other through a heartbeat transmitted between each other, so that the frequency of the heartbeat can be regulated by a service request signal sent from the user's end, comprising the following steps: establishing a frequency correspondence table; setting said heartbeat frequency to a most recent heartbeat frequency, so that signals are transmitted at the most recent heartbeat frequency between the host and the backup host; recording the transmitted times of a plurality of service request signals, thus calculating a frequency of the most recent service request signal; checking through said frequency correspondence table, when said most recent heartbeat frequency and the frequency of the most recent service request signal are not in the same state, then a synchronization signal is transmitted from said host to said backup host; upon certifying the receipt of the synchronization signal by said backup host, transmitting a certified regulation signal back to said host; and regulating by said host and said backup host synchronously the most recent heartbeat frequency.