Methods and apparatus for providing redundant power supply protection with power zones for electronic devices

An apparatus, comprising:

• a plurality of power supplies, each power supply from the plurality of power supplies being associated with a power zone from a plurality of power zones;
• a plurality of power rails, each power rail from the plurality of power rails being associated with a power zone from a plurality of power zones, each power rail from the plurality of power rails configured to be operatively coupled to an electronic device from a plurality of electronic devices that is associated with that power zone from the plurality of power zones;
• a redundant power supply, an output voltage level from a plurality of output voltage levels for each power supply from the plurality of power supplies being adjustable based on an output voltage level of the redundant power supply;
• a plurality of controllers, each controller from the plurality of controllers associated with a power supply from the plurality of power supplies and configured to adjust an output voltage level from the plurality of output voltage levels for that power supply;
• and
• a redundant power rail, the redundant power rail configured to be operatively coupled to each electronic device from the plurality of electronic devices.