Patent ID: 7643307

Claim:
A method for supplying power to critical functions in a data processing system comprising: providing a frame having bays for holding system components including at least two nodes; providing in said frame further system components including at least two sets of critical functions, said sets of critical functions being supplied to each node in said frame; supplying from a redundant power supply, power to one of said nodes in said frame and one set of said critical functions, said redundant power supply comprises three logic power supplies, each logic power supply slidably engageable in a node in said frame; slidably engaging in said frame in place of one of the nodes, a jumper book including a jumper engageable with said frame which, when engaged in said frame, transfers power from said redundant power supply to the other set of said critical functions; and engaging a power connector in said frame with a jumper connector in said jumper book when said jumper book is slidably engaged in said frame, said power connector being connected to at least one of said logic power supplies of said redundant power supply, said jumper being connected to said jumper connector and at least one of said critical functions such that standby power is transferred to the connected critical function when said jumper book is slidably engaged in said frame.