Network-attached storage system, device, and method with multiple storage tiers
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United States of America Patent
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Mar 24, 2009
Grant Date -
Dec 27, 2007
app pub date -
Jun 25, 2007
filing date -
Apr 4, 2003
priority date (Note) -
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Abstract
A network-attached system, device, and method supports multiple storage tiers. Data may be migrated between storage tiers, for example, based on a data migration policy. A plurality of dedicated storage devices that provide a plurality of storage tiers having different characteristics are managed using a disk control protocol and data is migrated between storage tiers based on predetermined storage criteria.
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