Patent ID: 9678503
Date: 2017-06-13
CPC Classifications: G05B,Y02P

Claim:
1. A fail-over system for a semiconductor equipment server, the system comprising: a semiconductor fabrication equipment group including a plurality of semiconductor fabrication equipment; an equipment server group including a plurality of equipment servers and configured to control an operation of the semiconductor fabrication equipment group; and a management server configured to detect an error or a faulty operation in at least one equipment server in the equipment server group by communicating with the equipment server group, and execute a fail-over policy for a faulty equipment server in which the faulty operation is detected, wherein executing the fail-over policy includes allocating at least one application running in the faulty equipment server to at least one normal equipment server in which no faulty operation is detected in the equipment server group, wherein, when the number of equipment servers, which are in the error or faulty operation, is greater than or equal to a predetermined number, the management server determines that a network failure has occurred and does not execute the fail-over policy, the predetermined number being greater than 1 and smaller than a total number of the equipment servers in the equipment server group, wherein, if the management sever receives a response signal from at least one equipment server in a predetermined period of time after determining the network failure has occurred, the management server cancels the decision of the network failure, and wherein, if the management sever receives no response signal from at least one equipment server in the predetermined period of time after determining the network failure has occurred, the management server maintains the decision of the network failure.