Redundant backup using non-volatile memory
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United States of America Patent
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Mar 20, 2018
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app pub date -
Sep 17, 2014
filing date -
Jun 1, 2007
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Abstract
Data stored in a volatile memory subsystem is backed up redundantly into first and second channels of a non-volatile memory subsystem. The data is retrieved from the volatile memory subsystem upon detection of a trigger condition indicative of real or imminent power loss or reduction and multiple copies are stored in dedicated non-volatile memory channels. The stored copies may be error checked and corrected, and re-written if necessary. The redundantly backed up data can be subsequently retrieved from the non-volatile memory subsystem, error-corrected, and an error-free copy communicated to the volatile memory subsystem.
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