Method and apparatus for data fill in failing read channel in pa

Details Method and apparatus for data fill in failing read channel in pa Method and apparatus for data fill in failing read channel in pa

1993-01-19

1993-10-12

Hajec, Donald T.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 53, G11B 509

Patent

active

052531252

ABSTRACT:
In a multiple platter parallel transfer disk drive tolerant of a fault on one channel, data bytes and accompanying parity data are stored to different platters, corresponding with the different channels, of the parallel transfer disk drive. Failure of a channel results in substitution of a predetermined data stream in the channel for the lost data. Data stream substitution is initiated whenever the clock for the channel is not detected within a certain maximum period. Data regeneration is effected from parity data generated for the data prior to storage.

REFERENCES:
patent: 4040022 (1977-08-01), Takii
patent: 4209809 (1980-06-01), Chang et al.

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