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公开(公告)号：US3267346A
公开(公告)日：1966-08-16
申请号：US33498564
申请日：1964-01-02
申请人： AMPEX
发明人： LIANG MAX M , MENDENHALL CHARLES E
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公开(公告)号：US2813686A
公开(公告)日：1957-11-19
申请号：US28684052
申请日：1952-05-08
申请人： EDWARD SCHROTER
发明人： EDWARD SCHROTER
CPC分类号： G11B27/36 , G11B15/10 , G11B15/1883 , G11B15/20 , G11B15/24 , G11B15/67573
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公开(公告)号：US2094847A
公开(公告)日：1937-10-05
申请号：US7367036
申请日：1936-04-10
申请人： REGAN DAY INC
发明人： REGAN GEORGE P , FRANKLIN CHARLES S
IPC分类号： G11B15/20
CPC分类号： G11B15/20
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公开(公告)号：US11935558B2
公开(公告)日：2024-03-19
申请号：US18087623
申请日：2022-12-22
发明人： Kevin Bruce Judd , Eiji Ogura
CPC分类号： G11B15/60 , G11B5/78 , G11B15/20 , G11B27/36 , G11B5/00813
摘要： A method, according to one embodiment, includes cycling a shorter length of a tape, that is less than an entire length of the tape, a plurality of times to acclimate the shorter length of the tape. An acclimation change amount of the shorter length of the tape is determined. The acclimation change amount is based on a baseline servo band difference (SBD) measured before the cycling and a post cycling SBD measured after the cycling. The method further includes adjusting SBD values from a beginning of the tape (BOT) to an end of the tape (EOT) based on the determined acclimation change amount. A system according to another embodiment includes a processor, and logic integrated with the processor, executable by the processor, or integrated with and executable by the processor. The logic is configured to cause the processor to perform operations of the foregoing method.
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公开(公告)号：US20180052727A1
公开(公告)日：2018-02-22
申请号：US15802245
申请日：2017-11-02
CPC分类号： G06F11/073 , G06F3/0619 , G06F3/0653 , G06F3/0659 , G06F3/0682 , G11B5/00813 , G11B15/20 , G11B20/00702 , G11B20/18
摘要： An apparatus-implemented method according to one embodiment includes detecting an error while writing data to a tape volume on a tape and repositioning the tape in response to detecting the error. A determination whether a rewrite of data associated with the error to the tape volume is allowed is made based on a current position of the tape after the repositioning. The data is rewritten to the tape volume in response to determining that the rewrite of data associated with the error to the tape volume is allowed. A computer program product for protecting overwrite of a tape volume according to another embodiment includes a computer readable storage medium having program instructions embodied therewith, the program instructions readable and/or executable by a controller to cause the controller to perform the foregoing method.
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公开(公告)号：US09646644B2
公开(公告)日：2017-05-09
申请号：US14972046
申请日：2015-12-16
发明人： Takashi Katagiri , Yuhko Mori , Yutaka Oishi
IPC分类号： G11B5/584 , G11B15/44 , G11B5/008 , G11B15/20 , G11B15/26 , G11B20/10 , G11B27/36 , G06F3/06
CPC分类号： G11B15/442 , G06F3/0613 , G06F3/0656 , G06F3/0682 , G06F2003/0691 , G11B5/00813 , G11B15/20 , G11B15/26 , G11B15/444 , G11B20/10009 , G11B20/10527 , G11B27/36 , G11B2020/10759 , G11B2220/90
摘要： An apparatus, computer readable medium device, and method for controlling transportation of a tape medium. A determination is made whether to execute a backhitch operation in response to writing a data set to tape from the buffer. If not, a determination is made whether a transaction size at which data is transferred from the buffer to the tape is less than a buffer size. If so, then a determination is made of a a new speed and whether a current speed is different from the determined new speed. If so, then a backhitch is initiated.
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公开(公告)号：US09390750B1
公开(公告)日：2016-07-12
申请号：US14676666
申请日：2015-04-01
CPC分类号： G06F11/073 , G06F3/0619 , G06F3/0653 , G06F3/0659 , G06F3/0682 , G11B5/00813 , G11B15/20 , G11B20/00702 , G11B20/18
摘要： In one embodiment, a method includes detecting an error while writing data to a tape volume. The method further includes repositioning the tape volume for recovering from the error, and receiving, after the repositioning, at least a portion of the data for rewriting the at least a portion of the data to the tape volume. Further, the method includes determining, after the repositioning, a current position of the tape volume. Additionally, the method includes determining, based on the current position of the tape volume, whether the rewrite to the tape volume is allowed.
摘要翻译： 在一个实施例中，一种方法包括在向磁带卷写入数据时检测错误。 该方法还包括重新定位用于从错误中恢复的磁带卷，以及在重新定位之后接收用于将至少一部分数据重写到磁带卷的数据的至少一部分。 此外，该方法包括在重新定位之后确定磁带卷的当前位置。 此外，该方法包括基于磁带卷的当前位置确定是否允许对磁带卷的重写。
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公开(公告)号：US09361928B2
公开(公告)日：2016-06-07
申请号：US14960954
申请日：2015-12-07
摘要： A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.
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公开(公告)号：US20160086629A1
公开(公告)日：2016-03-24
申请号：US14960954
申请日：2015-12-07
IPC分类号： G11B15/06
摘要： A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.
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