Magnetic disk apparatus, preventive maintenance detection...

Details Magnetic disk apparatus, preventive maintenance detection... Magnetic disk apparatus, preventive maintenance detection...

2007-09-11

2007-09-11

Chung, Phung My (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Memory testing

C714S738000, C369S053100, C369S053150, C360S031000, C360S053000

Reexamination Certificate

active

11214941

ABSTRACT:
The present invention has been made to obtain a magnetic disk apparatus and the like capable of using a patrol region in the magnetic disk to detect a location in need of maintenance in hardware equipment around the magnetic disk in a separate manner from the disk itself and thereby avoiding useless replacement and operating the magnetic disk apparatus at low cost. In a preventive maintenance detection for a magnetic disk apparatus having a patrol function that uses a patrol region in the magnetic disk to determine the presence/absence of the need of preventive maintenance, a data pattern for detecting crosstalk in hardware equipment around the disk is generated, a write command or read command corresponding to the generated data pattern is executed, and the crosstalk is determined/detected based on the command execution result.

REFERENCES:
patent: 4733305 (1988-03-01), Miura et al.
patent: 5017141 (1991-05-01), Relf et al.
patent: 6553454 (2003-04-01), Harada
patent: 7177883 (2007-02-01), Yagawa
patent: 6-223428 (1994-08-01), None
patent: 9-16340 (1997-01-01), None
patent: 97/27530 (1997-07-01), None

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