Dynamically configuring current sharing and fault monitoring in redundant power supply modules

1. A method of dynamically configuring current sharing and fault monitoring in redundant power supply modules for components of an electrically powered system, the method comprising:

summing, by a master service processor, during powered operation of the system, the present power requirements of components presently installed in the electrically powered system;

setting, by the master service processor for each redundant power supply module in dependence upon the sum of the present power requirements, a current sharing tolerance and a fault reporting tolerance.

2. The method of claim 1 further comprising detecting by a master service processor a change in a configuration of the components of the electrically powered system, wherein the summing and the setting are carried out in response to the detecting.

3. The method of claim 1 further comprising summing by a service processor of a component, into a power requirement for the component, power requirements of devices in the component.

4. The method of claim 1 further comprising detecting the presence of a component in a system slot, wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing a predefined power requirement for the slot.

5. The method of claim 1 further comprising:

detecting the presence of a component in a system slot; and

retrieving vital product data (‘VPD’) from the component in the slot, the VPD comprising information about the component that allows the component to be administered at a system level, the VPD including a power requirement for the component;

wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing, as the power requirement for the component in the slot, the power requirement from the VPD.

6. The method of claim 1 wherein setting a current sharing tolerance and a fault reporting tolerance further comprises:

calculating, in dependence upon the sum, the current sharing tolerance and the fault reporting tolerance; and

providing the calculated tolerances to the redundant power supply modules.

7. The method of claim 6 wherein calculating a current sharing tolerance and a fault reporting tolerance further comprises disabling fault reporting by the redundant power supply modules.

8. An apparatus for dynamically configuring current sharing and fault monitoring in redundant power supply modules for components of an electrically powered system, the apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions capable of:

summing, by a master service processor, during powered operation of the system, the present power requirements of components presently installed in the electrically powered system;

setting, by the master service processor for each redundant power supply module in dependence upon the sum of the present power requirements; a current sharing tolerance and a fault reporting tolerance.

9. The apparatus of claim 8 further comprising computer program instructions capable of detecting by a master service processor a change in a configuration of the components of the electrically powered system, wherein the summing and the setting are carried out in response to the detecting.

10. The apparatus of claim 8 further comprising computer program instructions capable of summing by a service processor of a component, into a power requirement for the component, power requirements of devices in the component.

11. The apparatus of claim 8 further comprising computer program instructions capable of detecting the presence of a component in a system slot, wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing a predefined power requirement for the slot.

12. The apparatus of claim 8 further comprising computer program instructions capable of:

detecting the presence of a component in a system slot; and

retrieving vital product data (‘VPD’) from the component in the slot, the VPD comprising information about the component that allows the component to be administered at a system level, the VPD including a power requirement for the component;

wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing, as the power requirement for the component in the slot, the power requirement from the VPD.

13. The apparatus of claim 8 wherein setting a current sharing tolerance and a fault reporting tolerance further comprises:

calculating, in dependence upon the sum, the current sharing tolerance and the fault reporting tolerance; and

providing the calculated tolerances to the redundant power supply modules.

14. The apparatus of claim 13 wherein calculating a current sharing tolerance and a fault reporting tolerance further comprises disabling fault reporting by the redundant power supply modules.

15. A computer program product for dynamically configuring current sharing and fault monitoring in redundant power supply modules for components of an electrically powered system, the computer program product disposed in a computer readable, recordable medium, the computer program product comprising computer program instructions capable of:

summing, by a master service processor, during powered operation of the system, the present power requirements of components presently installed in the electrically powered system;

setting, by the master service processor for each redundant power supply module in dependence upon the sum of the present power requirements, a current sharing tolerance and a fault reporting tolerance.

16. The computer program product of claim 15 further comprising computer program instructions capable of detecting by a master service processor a change in a configuration of the components of the electrically powered system, wherein the summing and the setting are carried out in response to the detecting.

17. The computer program product of claim 15 further comprising computer program instructions capable of summing by a service processor of a component, into a power requirement for the component, power requirements of devices in the component.

18. The computer program product of claim 15 further comprising computer program instructions capable of detecting the presence of a component in a system slot, wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing a predefined power requirement for the slot.

19. The computer program product of claim 15 further comprising computer program instructions capable of

detecting the presence of a component in a system slot; and

retrieving vital product data (‘VPD’) from the component in the slot, the VPD comprising information about the component that allows the component to be administered at a system level, the VPD including a power requirement for the component;

wherein summing the present power requirements of components presently installed in the electrically powered system further comprises summing, as the power requirement for the component in the slot, the power requirement from the VPD.

20. The computer program product of claim 15 wherein setting a current sharing tolerance and a fault reporting tolerance further comprises:

calculating, in dependence upon the sum, the current sharing tolerance and the fault reporting tolerance; and

providing the calculated tolerances to the redundant power supply modules.