Disk array device having point value added or subtracted for...

Details Disk array device having point value added or subtracted for... Disk array device having point value added or subtracted for...

2004-02-20

2008-08-05

Beausoliel, Jr., Robert W. (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07409579

ABSTRACT:
A trouble case point update unit subtracts point from point stored in a trouble point storage unit when a trouble occurs. A processing-time-reference exceeding case point update unit subtracts point from point stored in the trouble point storage unit when a response delay occurs. A trouble point recovery unit adds point to the point stored trouble point storage unit and processing-time-reference exceeding case point storage unit when a predetermined time passes since the last addition and storage. A point initialization unit sets the points stored in the trouble point storage unit and processing-time-reference exceeding case point storage unit to an initial point when a defective component is replaced. A degradation determination unit degrades a defective component in a case where the point in the trouble point storage unit or processing-time-reference exceeding case point storage unit become equal to or lower than a reference point.

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