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公开(公告)号：GB2495613A
公开(公告)日：2013-04-17
申请号：GB201217981
申请日：2012-10-08
Applicant: IBM
Inventor： NYLANDER-HILL PAMELA RUTH , OISHI YUTAKA , MASUDA SETSUKO
Abstract: A tape drive system includes a read channel configured for performing a portion of a data transfer operation and includes logic adapted for monitoring the data transfer operation for detecting one or more recovered or temporary errors (temps) within a sliding window spanning a last group of datasets processed 1102. Interference between first tier and second tier recovery methods is measured based on the monitoring 1104 and a backhitch delay is set based on conditions relating to the interference of first tier and second tier recovery methods as it relates to a determined error burst 1106. A back hitch is performed and at least one condition of the data transfer operation is altered after the backhitch delay 1108. The first tier may be a dynamic or inline error recovery tier and is focused on recovery of a single dataset and may leave a successful hardware modification in place rather than initiate a backhitch. The second tier can be a burst detection tier.
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公开(公告)号：GB2495613B
公开(公告)日：2015-12-02
申请号：GB201217981
申请日：2012-10-08
Applicant: IBM
Inventor： NYLANDER-HILL PAMELA RUTH , OISHI YUTAKA , MASUDA SETSUKO
Abstract: A computer program product includes a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code being executable by a processing circuit to cause the processing circuit to perform the following process. A data transfer operation is monitored for detecting one or more temps. A backhitch delay is set based at least in part on a post-recovery condition of a tape drive performing a portion of the data transfer operation. A backhitch is caused to be performed. At least one condition of the data transfer operation is altered after the backhitch delay.
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