Storage device, program for controlling storage device,...

Details Storage device, program for controlling storage device,... Storage device, program for controlling storage device,...

2005-09-13

2005-09-13

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

C360S031000, C360S048000, C360S077110, C360S077120, C360S050000

Reexamination Certificate

active

06943974

ABSTRACT:
A method and system for rewriting data on a tape when an error occurs during an initial write operation. When the initial write error occurs, the data is rewritten at a location that is a pre-defined block gap distance from the last valid write location on the tape. By measuring the length of the pre-defined block gap distance, the cause or causes of the write error or errors are known. Thus, the pre-defined block gap not only ensures that the data is not re-written in a no-write zone of the tape, due to the zone known to be error prone, but a historical record of past write errors is logged based on the length of the block gaps.

REFERENCES:
patent: 6111708 (2000-08-01), Jewell et al.
patent: 6292445 (2001-09-01), Ito et al.
patent: 6384997 (2002-05-01), Wu et al.
patent: 2003/0237024 (2003-12-01), Ogawa et al.
patent: 2004/0001408 (2004-01-01), Propps et al.

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