Retrieval of a single complete copy from multiple stored...

Details Retrieval of a single complete copy from multiple stored... Retrieval of a single complete copy from multiple stored...

2005-09-06

2005-09-06

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C369S030050

Reexamination Certificate

active

06941488

ABSTRACT:
A method and apparatus for retrieving a single complete copy from multiple stored copies is provided. Information of each of the multiple stored copies is contained in a different set of sectors on disc surfaces in a disc storage system. Each different set of sectors can include at least one defective sector from which information is not recoverable. One copy from the multiple stored copies from which information is recoverable is selected. Defective sectors in the selected copy are identified. Replacement sectors are located from the multiple stored copies other than the selected copy. Information from the selected copy is merged with information from the replacement sectors to form the single complete copy.

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