Alcatel Lucent

Saida Benlarbi

David Stortz

Toby James Koktan

Robert Morton

Dmitri Garaschenko

James Wisener

David Henry Graham

David Motz

A method and system is disclosed for controlling cooling unit operational settings according to a desired useful life target. The method and system includes an adaptive cooling controller which uses system configuration information to associate a particular cooling unit with particular sub-equipment locations, and further uses configuration information to associate cooling unit activity with respective sensors. At a given cooling unit setting, the adaptive cooling controller determines from sensor readings in the associated sub-equipment whether a cooling unit setting change is required according to the configuration information for the sub-equipment in conjunction with a useful life target. The method and system is particularly useful for overcoming the difficulty with accommodating sub-equipment changes of cooling unit controllers known in the art.

Adaptive cooling using selectable target useful life

Apparatus and methods for autonomously identifying and mitigating soft-errors affecting integrated circuit memory storage devices are provided. A soft-error mitigation process is invoked upon finding that an integrated circuit memory device is affected by a parity error. In a staged approach, unused memory regions of the integrated circuit memory device are reinitialized; if a redundant deployment prevails, the subsystem corresponding to the affected integrated circuit memory device is reset; memory regions having copies of contents thereof stored at remote locations are rewritten with obtained copies of the contents; and memory regions storing contents which are generated at run-time are reinitialized. Directed parity error scans are employed at each stage. If the parity error persists, one of the apparatus, and the subsystem corresponding to the affected silicon memory device is reset during a maintenance window. Advantages are derived from a run-time soft-error mitigation process which increases availability, and reduces maintenance overheads and the need for hardware replacement.

Autonomous method and apparatus for mitigating soft-errors in integrated circuit memory storage devices at run-time

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Ottawa, Canada

Saida Benlarbi