Performance optimization of read functions in a memory system
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United States of America Patent
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Feb 19, 2019
Grant Date -
Feb 2, 2017
app pub date -
Oct 12, 2016
filing date -
Nov 12, 2014
priority date (Note) -
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Abstract
According to one aspect, a method for performance optimization of read functions in a memory system includes receiving, at the memory system, a read request including a logical address of a target data. The memory system includes a primary memory and a back-up memory that mirrors the primary memory. The method also includes searching a fault monitor table for an entry corresponding to the received logical address. The fault monitor table includes a plurality of entries that indicate physical locations of identified memory failure events in the primary memory and the back-up memory. Based on locating an entry corresponding to the received logical address, the method further includes selecting one of the primary memory and the backup memory for retrieving the target data. The selection is based on contents of the fault monitor table.
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