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US 2002/0059539 A1Published application
Hybrid data storage and reconstruction system and method for a data storage device
AssigneeSeagate Technology LLC
InventorDAVID B. ANDERSON
Life of this patent
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Abstract
The present invention is drawn to a hybrid data reconstruction system and method for a data storage device. Data is selectively stored according to one of two or more redundancy schemes such that critical data is stored according to a scheme which has a higher degree of redundancy.
Claims37
A disc drive array, comprising:
- a plurality of disc drives;
- at least one controller, operably coupled to the plurality of disc drives, configured to receive data and store a first portion of the data on the disc drives according to a first redundancy scheme and to store a second portion of the data on the disc drives according to a second redundancy scheme.
A method of storing data on a disc, in a disc drive, comprising steps of:
- (a) storing a first portion of the data according to a first redundancy scheme;
- and
- (b) storing a second portion of the data according to a second redundancy scheme, different from the first redundancy scheme.
A disc drive array, comprising:
- a plurality of disc drives;
- at least one controller, operably coupled to the plurality of disc drives, configured to receive data and store a first portion of the data on the disc drives according to a first redundancy scheme and to store a second portion of the data on the disc drives according to a direct encoding scheme.
A disc drive array, comprising:
- an array of disc drives, and
- array controller means for selectively mirroring data among the disc drives.
A method of storing data on a disc, in a disc drive, comprising steps of:
- (a) storing a first portion of the data according to a first redundancy scheme;
- and
- (b) storing a second portion of the data according to a direct encoding scheme.
Dependencies are inferred from the claim text.