Apparatus and method for accessing a disk containing an...

Details Apparatus and method for accessing a disk containing an... Apparatus and method for accessing a disk containing an...

2006-08-01

2006-08-01

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130

Reexamination Certificate

active

07085965

ABSTRACT:
A CPU determines whether or not the disk access range designated by a read/write command from a host contains a defective sector. If the disk access range contains a defective sector, the CPU suspends disk access when a head has reached the defective sector. In this state, the CPU activates a buffer access circuit. The buffer access circuit copies data between an area of an alternate sector buffer and data buffer. The area of the alternate sector buffer stores data corresponding to the data written in the alternate sector allocated to the defective sector reached by the head.

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U.S. Appl. No. 10/291,574 filed Nov. 12, 2002, inventor Arakawa.

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