Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-10-31
2009-06-09
Ellis, Kevin (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C714S006130
Reexamination Certificate
active
07546429
ABSTRACT:
A first read request is received from a computer system. Data from one mirror of a data volume is returned to the computer system in response to receiving the first read request. The computer system may check the returned data to determine whether it is corrupted. If corrupted, the computer system sends a second read request for the same data. Rather than returning the same corrupted data stored in the one mirror, a copy of the requested data is returned from an alternate mirror of the data volume.
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Karr Ronald S.
Kiselev Oleg
Campbell Stephenson LLP
Ellis Kevin
Rutz Jared I
Symantec Operating Corporation
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