Non-volatile memory storage of write operation identifier in data sotrage device
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United States of America Patent
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Mar 16, 1993
Grant Date -
N/A
app pub date -
Mar 2, 1990
filing date -
Mar 2, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus are provided for detecting and correcting various data errors that may arise in a mass data storage apparatus comprising a set of physical mass storage devices operating as one or more larger logical mass storage devices. More particularly, there is provided a method and apparatus for determining, on restoration of power to a device set, whether or not a write operation was interrupted when power was removed, and for reconstructing any data that may be inconsistent because of the removal of power.
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