Dynamic magnetic information storage or retrieval – Record copying
Patent
1997-12-31
2000-08-29
Kim, W. Chris
Dynamic magnetic information storage or retrieval
Record copying
360 53, G11B 586, G11B 509
Patent
active
061117072
ABSTRACT:
A method for creating a duplicate copy of a tape in which a first tape having a first data set name and a second tape having a second data set name are allocated. Data is written to the first and second tapes so that block for block, the data is located at the same position on each of the tapes. After data is written to one of the tapes, a check is made to verify that the data was written correctly. If an error is detected in writing the second tape, an error flag is set that indicates a copy of the first tape needs to be made. At various stages of the process, checks are made to determine if error flag is on. If the error flag is detected, writing the second tape is suspended.
REFERENCES:
patent: 4084231 (1978-04-01), Capozzi et al.
patent: 4608688 (1986-08-01), Hansen et al.
patent: 4872070 (1989-10-01), Copper et al.
patent: 5235683 (1993-08-01), Dahlerud
patent: 5311374 (1994-05-01), Oh
patent: 5331474 (1994-07-01), Lee
patent: 5502600 (1996-03-01), Bernardini
patent: 5535381 (1996-07-01), Kopper
Buddecke Robert C.
Knapp Cheryl Jean DeBolt
McEwen William
Pearson Anthony S.
Pence Jerry W.
International Business Machines - Corporation
Kim W. Chris
Pagel Donald J.
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