Storage system has the function of preventing drive write error

Details Storage system has the function of preventing drive write error Storage system has the function of preventing drive write error

2008-07-08

2008-07-08

Louis-Jacques, Jacques (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C711S114000

Reexamination Certificate

active

10972435

ABSTRACT:
A storage technology for improving reliability in writing host data to a storage device is provided. A first check code based on write data is stored in cache memory370, and storage section50is instructed to write, in specified predetermined storage area, write data with the first check code appended thereto, after which the storage section50is instructed to read data stored in said predetermined storage area; a second check code is generated on the basis of the read data, and in the event that the correspondence relationship between the first and second check codes is correct, it is decided that the write data was written normally to the storage section50.

REFERENCES:
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patent: 5477552 (1995-12-01), Nishiyama
patent: 6988151 (2006-01-01), Tsuruta
patent: 2005/0005191 (2005-01-01), Judd
patent: 2001-202295 (2001-07-01), None

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