Block-based Storage System Having Recovery Memory to Prevent Loss of Data from Volatile Write Cache
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United States of America Patent
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N/A
Issued Date -
Jul 30, 2009
app pub date -
Jan 12, 2009
filing date -
Jan 30, 2008
priority date (Note) -
Abandoned
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Abstract
A block-based storage system that maximizes data throughput while minimizing data loss has a non-volatile mass storage media for receiving and non-volatilly storing WRITE data and a volatile write cache for receiving and caching WRITE data until the WRITE data has been written to the non-volatile mass storage media. A controller includes a processor in communication with the volatile write cache for writing data to the volatile write cache and a non-volatile recovery memory in communication with the processor is supplied for receiving and non-volatilly storing a copy of all data that the processor writes to the volatile write cache so that any data cached in the volatile write cache which is lost due to a loss of power may be re-written to the volatile write cache from the recovery memory.
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