FAULT-TOLERANT POWER CONTROL IN A COMPUTER SYSTEM
First Claim
1. A power controller to control power applied to an enclosure having a plurality of computing devices, comprising:
- first and second primary power meters respectively measuring first and second input power feeds to the enclosure;
a first alternative power meter to measure power supplied by the first input power feed;
a second alternative power meter to measure power supplied by the second input power feed;
a first controller coupled to the first primary power meter and the second alternative power meter; and
a second controller coupled to the second primary power meter and the first alternative power meter;
wherein the first controller is coupled to the second controller.
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Accused Products
Abstract
Fault-tolerant power control in a computer system is described. In an example, a power controller to control power applied to an enclosure having a plurality of computing devices includes: first and second alternating current (AC) primary power meters respectively measuring first and second input power feeds to the enclosure; a first alternative power meter to measuring power supplied by the first input power feed; a second alternative power meter to measure power supplied by the second input power feed; a first controller coupled to the first primary power meter and the second alternative power meter; and a second controller coupled to the second primary power meter and the first alternative power meter; wherein the first controller is coupled to the second controller.
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Citations
20 Claims
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1. A power controller to control power applied to an enclosure having a plurality of computing devices, comprising:
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first and second primary power meters respectively measuring first and second input power feeds to the enclosure; a first alternative power meter to measure power supplied by the first input power feed; a second alternative power meter to measure power supplied by the second input power feed; a first controller coupled to the first primary power meter and the second alternative power meter; and a second controller coupled to the second primary power meter and the first alternative power meter; wherein the first controller is coupled to the second controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling power applied to an enclosure having a plurality of computing devices, comprising:
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identifying, at a first controller of a first power zone, a fault in a second power zone; obtaining first input power measurements for the first power zone from a primary power meter in the first power zone; obtaining power measurements for the second power zone from an alternative power meter in the second power zone; computing second input power measurements for the second power zone using the power measurements from the alternative power meter in the second power zone; and computing total input power consumed from the first and second input power measurements. - View Dependent Claims (10, 11, 12, 13)
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14. An enclosure for a plurality of computing devices, comprising:
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a power subsystem to manage power for the computing devices attached to the enclosure, the power subsystem including; a first power zone having a first primary power meter measuring a first input power feed, a first alternative power meter measuring power supplied by the first input power feed, and a first controller; a second power zone having a second primary power meter measuring a second input power feed, a second alternative power meter measuring power supplied by the second input power feed, and a second controller; wherein the first controller receives measurements from the first primary power meter, and the second alternative power meter; and wherein the second controller receives measurements from the second primary power meter, and the first alternative power meter. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification