Multi-tier data storage system
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United States of America Patent
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Jan 4, 2005
Issued Date -
N/A
app pub date -
Oct 27, 1999
filing date -
Oct 27, 1999
priority date (Note) -
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Abstract
A multi-tier data storage system includes a first data storage unit for storing recently loaded data files; a second data storage unit coupled to the first data storage unit for archiving data files residing on the first data storage unit for more than a predetermined period of time; and, a third data storage unit coupled to the second data storage unit, the third data storage unit caching files archived in the second data storage unit if the data file is unavailable on the first data storage unit.
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