Selecting active power supplies based on power supply cable length

A computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform a method comprising:

• identifying a plurality of power supplies connected for supplying power to a computer system, wherein the plurality of power supplies includes at least one redundant power supply in a standby mode;
• for each of the plurality of power supplies identified, determining a length of a power supply cable connected between the power supply and one of a plurality of power distribution units for supplying power to the power supply;
• placing one or more of the plurality of power supplies in an active mode in ascending order of the length of the cable connected to the power supply;
• and
• supplying power to the computer system using the one or more of the plurality of power supplies in the active mode.