Data transfer optimization through sector evaluation and realloc

Details Data transfer optimization through sector evaluation and realloc Data transfer optimization through sector evaluation and realloc

1997-05-30

2000-04-18

An, Meng-Ai T.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

714 1, 714 2, 714 6, 714 25, G06F 1100

Patent

active

060528044

ABSTRACT:
An apparatus and associated method are disclosed for optimizing the data transfer performance of a disc drive in which user data is stored in data blocks arranged on tracks of at least one rotating disc. When a selected, uninterrupted amount of time passes since the most recently performed disc drive operation, the disc drive enters an idle mode and selectively evaluates the data blocks for uncorrected read errors. During the idle mode, at such time that a selected data block is found having an uncorrected error, a sequence of corrective operations are performed in an attempt to resolve the error and the selected data block is reallocated when at least selected one of the corrective actions are unsuccessful.

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Finch and Moczarny, "Headerless disc formatting: Making room for more data," Data Storage Magazine, Apr. 1997, pp. 51, 52, and 54, vol. 4, No. 5, Pennwell Publishing Co., Tulsa, Oklahoma.

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