Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-08-08
2006-08-08
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S005110, C714S006130, C714S006130, C714S042000, C711S114000
Reexamination Certificate
active
07089448
ABSTRACT:
A disk is segmented into a first data segment and a secondary data segment. The secondary data segment stores a logical mirror of the first data segment of another disk. Fast access to data stored on the disk is provided by partitioning the disk such that the first data segment includes the fast tracks of the disk and the secondary data segment includes the slow tracks of the disk and forwarding all data requests to the first data segment. Upon detecting a failure, the logical mirror of data stored in the first data segment of the failed disk is accessible from the secondary data segment of a non-failed disk. The first data segment can be rebuilt quickly on another disk from the logical mirror stored in the secondary data segment.
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Femia Vincent F.
Harris Craig S.
Hinshaw Foster D.
Metzger John K.
Meyers David L.
Beausoliel Robert
Hamilton Brook Smith & Reynolds P.C.
Manoskey Joseph D
Netezza Corporation
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