Providing bus resiliency in a hybrid memory system

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United States of America Patent

PATENT NO 9239807
APP PUB NO 20150121139A1
SERIAL NO

14066776

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Abstract

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In a hybrid memory system that includes a host memory controller and a non-volatile memory DIMM, where the DIMM is coupled to the host memory controller by a memory bus, the DIMM includes non-volatile memory, a DIMM bus adapter, and a local memory controller, the local memory controller is configured to control memory accesses within the DIMM, the DIMM bus adapter is configured to adapt the local memory controller to the bus for memory communications with the host memory controller in accordance with a bus protocol, bus resiliency may be provided by: discovering, by the DIMM bus adapter, a memory error in the DIMM; providing, by the DIMM bus adapter to the host memory controller, an indication of an error by emulating a hardware error native to the bus protocol; and performing, by the host memory controller, one or more resiliency measures responsive to the indication of the error.

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Patent Owner(s)

Patent OwnerAddress
LENOVO INTERNATIONAL LIMITED23/F LINCOLN HOUSE TAIKOO PLACE 979 KING'S ROAD QUARRY BAY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kochar, Sumeet Apex, US 49 297
Ono, Makoto Chapel Hill, US 148 1735

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