Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2011-02-15
2011-02-15
Thai, Tuan V. (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S100000, C711S118000, C711S154000
Reexamination Certificate
active
07890696
ABSTRACT:
A data storage system is provided having identical information stored on two different domains, actuators independently moveable in a data transfer relationship with each domain, and a command queue controller configured for short-stroking the actuators in accessing the information from one of the domains. A method is provided for virtualizing a storage space to store user data in a first domain and redundant data in a second domain; pushing access commands from a command queue with a first head adjacent the first domain and a second head adjacent the second domain, the heads being independently moveable in relation to each other; and satisfying a retrieve command from one of the first and second domains, depending on which head is nearest an LBA associated with the retrieve command.
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Fellers , Snider, et al.
Seagate Technology LLC
Thai Tuan V.
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