Patent ID: 8812903

Claim:
A boot control method for a computer system having a plurality of computers, a management server that controls said plurality of computers, and a storage device that is shared by said plurality of computers, each computer having a port, a program for each computer is stored in a logical unit of said storage device, the computer system is configured to boot the program for each computer by using a unique ID that is set on the port of each computer, the unique ID that is set on the port of each computer is associated with the program stored in the logical unit, said boot control method comprising the steps of: managing, by said management server, unique IDs assigned to ports of the computers, and delivering a first unique ID assigned to a port of a failed computer to a secondary computer among said plurality of computers; setting, by said secondary computer, the delivered first unique ID on the port of the secondary computer, and notifying the management server of the first unique ID set on the port of the secondary computer; managing, by the management server, managing the notified first unique ID as a unique ID assigned to the port of the secondary computer; accessing, by said secondary computer, a logical unit associated with the failed computer using a logical connection newly created between the secondary computer and the storage device based on the setting of the first unique ID, and booting the program for the failed computer.