Browse Prior Art Database

Management of a Redundant Cooling System

IP.com Disclosure Number: IPCOM000112659D
Original Publication Date: 1994-Jun-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Batchelor, GW: AUTHOR [+6]

Abstract

This article discloses providing increased availability by managing a redundant cooling system (such as fans) that provides a signal indicating whether each component is functioning properly. A threshold of failures must be detected in order to remove power from the area that is no longer receiving adequate cooling. After a repair to the cooling system is completed, restoration of power to the affected area must allow the detection circuitry to start checking for proper operation again.

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This is the abbreviated version, containing approximately 100% of the total text.

Management of a Redundant Cooling System

      This article discloses providing increased availability by
managing a redundant cooling system (such as fans) that provides a
signal indicating whether each component is functioning properly.  A
threshold of failures must be detected in order to remove power from
the area that is no longer receiving adequate cooling.  After a
repair to the cooling system is completed, restoration of power to
the affected area must allow the detection circuitry to start
checking for proper operation again.

      Each component in the area to be monitored provides a signal
that must be sampled to indicate proper operation.  If any component
fails, this signal is used to report the failure, but availability of
the function being cooled is not lost.  If enough of the components
in the area fail (crossing a predetermined threshold), then the power
must be removed from this area.  This solution also employs signals
indicating whether power is on to the cooling component's sense
circuitry and whether power is being supplied to the cooling
component.