Patent ID: 7131019

Claim:
In a control box including at least one power supply and a control module having a power on management procedure and a power consumption estimation procedure, a method of managing power of the control box which, when powered on, causes the control module to perform the steps of: (a) running the power on management procedure to set a power on mode of each of a plurality of blade severs installed in the control box; (b) measuring power consumed by the blade servers running in the power on mode; (c) measuring power of the power supply; (d) running the power consumption estimation procedure to determine whether the power of the power supply is larger than the power consumed by the blade servers, and (e) determining whether a subsequent action should be continued by the control module based on the estimation; wherein the power consumption of each blade server in a full speed mode is S 1 , S 2 , . . . , or S n , the power consumption of each blade server in the standby mode is S 1 ′, S 2 ′, . . . , or S n ′, the number of each of the blade servers in the control box is M 1 , M 2 , . . . , or M n , the number of each of the blade servers in the full speed mode is m 1 , m 2 , . . . , or m n , the number of each of the blade servers in the standby mode is M 1 −m 1 , M 2 −m 2 , . . . , or M n −m n , the number of the power supply is C 1 , the number of the backup power supply is C 2 , the power of each of the power supply is P 1 , the power of each of the backup power supply is P 2 , and the power consumption of the control module is E after the control box has finished the power on so that an equation approximately calculating the power consumption in the power on is: ( P 1 ×C 1 +P 2 ×C 2 )≧( S 1 ×m 1 )+( S 1 ′×( M 1 −m 1 ))+( S 2 ×m 2 )+( S 2 ′×( M 2 −m 2 ))+( S 3 ×m 3 )+( S 3 ′×( M 3 −m 3 )) . . . +( S n ×m n )+( S n ′×( M n −m n ))+ E.