Command queue ordering by flipping active write zones
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United States of America Patent
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Aug 14, 2012
Grant Date -
Jan 3, 2008
app pub date -
Jun 30, 2006
filing date -
Jun 30, 2006
priority date (Note) -
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Abstract
A data storage system is provided with a storage domain having an active zone subportion of storage space, and a command queue controller configured for short-stroking an actuator directed to the active zone. A method is provided for virtualizing a storage space to store user data in a first domain and redundant data in a second domain, partitioning each of the domains into active and inactive subportion storage zones, and executing a retrieve access command from one of the first and second domains depending on which domain's active zone contains an LBA associated with the retrieve access command.
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