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公开(公告)号：US20220107921A1
公开(公告)日：2022-04-07
申请号：US17060466
申请日：2020-10-01
IPC分类号： G06F16/18 , G06F16/174 , G06F16/17 , G06F16/16
摘要： Examples implementations relate to journals for metadata changes. An example includes detecting, by a storage controller, metadata changes associated with a container index of a deduplication storage system; recording, by the storage controller, the detected metadata changes in a journal associated with the container index, where the journal is included in a journal group comprising a plurality of journals; determining, by the storage controller, whether a filled amount of the journal exceeds a fill threshold; and, in response to a determination that the filled amount of the journal does not exceed the fill threshold, writing the journal group from memory to persistent storage.
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公开(公告)号：US07813069B2
公开(公告)日：2010-10-12
申请号：US12023126
申请日：2008-01-31
IPC分类号： G11B5/09
CPC分类号： G11B15/1808 , G11B15/087 , G11B15/4671
摘要： A method of controlling relative motion of a data storage medium on which data is stored in data groups comprising tracks extending across the storage medium and a rotatable transducer for reading data from the storage medium includes determining from the data groups a start reread data group at which a data reread process is to start following detection of a read error condition in a preceding data read process. The method also includes obtaining a reread track reference value for use in controlling that relative motion during the data reread process using a track reference value difference stored in at least one track of at least one data group that is to be reread during the data reread process and a track reference value that was used in controlling that relative rotation during the preceding data read process.
摘要翻译： 一种控制数据存储介质的相对运动的方法，所述数据存储介质存储在包括在所述存储介质上延伸的轨道的数据组中的数据组和用于从所述存储介质读取数据的可旋转传感器包括从所述数据组中确定起始重读数据组， 数据重读过程是在先前的数据读取过程中开始检测到读取错误状况。 该方法还包括获得重读轨迹参考值，用于在数据再读取过程中使用存储在数据重读过程中要重读的至少一个数据组的至少一个轨道中的轨道参考值差来控制相对运动 以及用于在前一数据读取处理期间控制相对旋转的轨道参考值。
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公开(公告)号：US20100192050A1
公开(公告)日：2010-07-29
申请号：US12361669
申请日：2009-01-29
CPC分类号： H03M13/093 , G11B20/18 , G11B2020/1843 , G11B2220/90 , H03M13/096
摘要： Disclosed is a storage apparatus comprising a data store; a data input; and a data processor arranged to: receive from the data input a block of data to be stored at an append point after sequential data comprising one or more stored blocks of data; retrieve an integrity measure, of one or more stored integrity measures that are associated with one or more respective points in the sequential data, said retrieved integrity measure being associated with a point at or preceding the append point; calculate a new integrity measure using the received block of data and the retrieved integrity measure; and store the received block of data and the new integrity measure in the data store, in addition to at least one stored integrity measure that is associated with a point in the data at or preceding the append point.
摘要翻译： 公开了一种包括数据存储器的存储装置; 数据输入 以及数据处理器，被配置为：在包括一个或多个存储的数据块的顺序数据之后，从所述数据输入接收要存储在附加点的数据块; 检索与顺序数据中的一个或多个相应点相关联的一个或多个存储的完整性度量的完整性度量，所述检索的完整性度量与附加点处或附加点之前的点相关联; 使用接收的数据块和检索的完整性度量计算新的完整性度量; 并且将所接收的数据块和新的完整性度量存储在数据存储器中，以及至少一个存储的完整性度量，其与附加点处或附加点之前的数据点相关联。
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公开(公告)号：US07349176B2
公开(公告)日：2008-03-25
申请号：US11119146
申请日：2005-04-29
申请人： Russell Ian Monk
发明人： Russell Ian Monk
IPC分类号： G11B5/027
CPC分类号： G11B15/6653 , G11B15/61
摘要： A tape guide system for supporting magnetic tape about a rotary scan drum of a data transfer apparatus is disclosed. The tape guide system comprises a tape guide connected to an arm. The tape guide has a deployed position in which a supporting surface of the tape guide supports the magnetic tape and a non-deployed position in which the supporting surface is spaced from and non-aligned with a surface of the tape to be supported. The arm is arranged to be driven about an axis of rotation towards the deployed position. The axis of rotation of the arm is inclined such that, in the deployed position at least part of the supporting surface of the tape guide is substantially aligned with the surface of the tape to be supported. Other systems and methods are also provided.
摘要翻译： 公开了一种用于在数据传送装置的旋转扫描鼓周围支撑磁带的磁带引导系统。 带引导系统包括连接到臂的带引导件。 带引导件具有展开位置，其中带导向器的支撑表面支撑磁带和非展开位置，其中支撑表面与待支撑的带的表面间隔开并且不对准。 臂被布置成围绕旋转轴线朝向展开位置被驱动。 臂的旋转轴线倾斜，使得在展开位置，带引导件的支撑表面的至少一部分基本上与待支撑的带的表面对齐。 还提供了其他系统和方法。
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公开(公告)号：US07911727B2
公开(公告)日：2011-03-22
申请号：US12243041
申请日：2008-10-01
IPC分类号： G11B19/02
CPC分类号： G11B5/584 , G11B15/467
摘要： An apparatus for writing data to a data storage medium on which data is stored in data groups (N−3 to N+1) comprising tracks extending across and spaced from a reference edge of the storage medium includes a control system operable to cause i) a track reference difference value representative of a difference in a distance between the tracks of an existing data group (N−1) on the storage medium and the reference edge and a distance between the reference edge and the tracks of a data group (N) to be written to the storage medium such that it is the next data group following the existing data group (N−1) or ii) data from which such a difference value can be derived to be included in at least one of frame (A1 to A5) to be written between the existing data group and the next data group such that the tracks of the at least one frame are spaced from the reference edge by substantially the same distance as the tracks of the existing data group.
摘要翻译： 一种用于向数据存储介质写入数据的装置，包括数据组（N-3至N + 1）中的数据存储介质，数据组（N-3至N + 1）包括跨越并与存储介质的参考边缘间隔开的轨道，该控制系统可操作以使i） 表示存储介质上的现有数据组（N-1）的轨道与参考边缘之间的距离与参考边缘与数据组（N）的轨迹之间的距离之间的差异的轨道参考差值， 被写入存储介质，使得它是跟随现有数据组（N-1）的下一个数据组，或者ii）可以导出这样的差值的数据被包括在帧（A1到 A5）被写入现有数据组和下一个数据组之间，使得至少一个帧的轨道与参考边缘间距离与现有数据组的轨道基本相同的距离。
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公开(公告)号：US20090316553A1
公开(公告)日：2009-12-24
申请号：US12485737
申请日：2009-06-16
IPC分类号： G11B20/18
CPC分类号： G11B27/36 , G11B15/06 , G11B15/087 , G11B2220/90
摘要： A tape data transfer apparatus operable to determine a tape damage condition of a tape received in the apparatus by determining a value representative of a tape pack size of the received tape and comparing the value representative of tape pack size with a tape pack size reference value that is read from the cartridge.
摘要翻译： 一种磁带数据传送装置，用于通过确定代表接收到的磁带的磁带包大小的值来确定装置中接收到的磁带的磁带损坏状况，并将表示磁带包大小的值与磁带包大小参考值进行比较， 从墨盒读取。
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公开(公告)号：US20080212224A1
公开(公告)日：2008-09-04
申请号：US12023126
申请日：2008-01-31
IPC分类号： G11B15/18
CPC分类号： G11B15/1808 , G11B15/087 , G11B15/4671
摘要： A method of controlling relative motion of a data storage medium on which data is stored in data groups comprising tracks extending across the storage medium and a rotatable transducer for reading data from the storage medium includes determining from the data groups a start reread data group at which a data reread process is to start following detection of a read error condition in a preceding data read process. The method also includes obtaining a reread track reference value for use in controlling that relative motion during the data reread process using a track reference value difference stored in at least one track of at least one data group that is to be reread during the data reread process and a track reference value that was used in controlling that relative rotation during the preceding data read process.
摘要翻译： 一种控制数据存储介质的相对运动的方法，所述数据存储介质存储在包括在所述存储介质上延伸的轨道的数据组中的数据组和用于从所述存储介质读取数据的可旋转传感器包括从所述数据组中确定起始重读数据组， 数据重读过程是在先前的数据读取过程中开始检测到读取错误状况。 该方法还包括获得重读轨迹参考值，用于在数据再读取过程中使用存储在数据重读过程中要重读的至少一个数据组的至少一个轨道中的轨道参考值差来控制相对运动 以及用于在前一数据读取处理期间控制相对旋转的轨道参考值。
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公开(公告)号：US07372661B2
公开(公告)日：2008-05-13
申请号：US11118879
申请日：2005-04-29
申请人： Russell Ian Monk
发明人： Russell Ian Monk
IPC分类号： G11B5/027
CPC分类号： G11B15/6653 , G11B15/60
摘要： A tape guide system for supporting magnetic tape about a rotary scan drum of a data transfer apparatus is disclosed. The tape guide system comprises a tape guide and a guide ramp. The tape guide has a supporting surface for supporting the magnetic tape in the tape guide's deployed position and has a non-deployed position in which the supporting surface is spaced from and non-aligned with a surface of the tape to be supported. The tape guide is arranged to be driven relative to the guide ramp towards the deployed position with a horizontal movement component, thereby causing the guide ramp to impart a vertical movement to the tape guide and, in the deployed position, substantially align at least part of the supporting surface of the tape guide with the surface of the tape to be supported. Other systems and methods are also provided.
摘要翻译： 公开了一种用于在数据传送装置的旋转扫描鼓周围支撑磁带的磁带引导系统。 磁带引导系统包括磁带引导件和引导斜面。 磁带引导件具有用于将磁带支撑在磁带引导件展开位置中的支撑表面，并且具有未展开位置，在该位置中支撑表面与待支撑的磁带的表面间隔开并且不对准。 磁带引导件布置成相对于导向斜面朝向展开位置被驱动，具有水平运动部件，从而使引导斜面向带引导件施加垂直运动，并且在展开位置中，基本对准至少部分 带引导件的支撑表面，带的表面将被支撑。 还提供了其他系统和方法。
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公开(公告)号：US20100014182A1
公开(公告)日：2010-01-21
申请号：US12243041
申请日：2008-10-01
IPC分类号： G11B15/18
CPC分类号： G11B5/584 , G11B15/467
摘要： An apparatus for writing data to a data storage medium on which data is stored in data groups (N−3 to N+1) comprising tracks extending across and spaced from a reference edge of the storage medium includes a control system operable to cause i) a track reference difference value representative of a difference in a distance between the tracks of an existing data group (N−1) on the storage medium and the reference edge and a distance between the reference edge and the tracks of a data group (N) to be written to the storage medium such that it is the next data group following the existing data group (N−1) or ii) data from which such a difference value can be derived to be included in at least one of frame (A1 to A5) to be written between the existing data group and the next data group such that the tracks of the at least one frame are spaced from the reference edge by substantially the same distance as the tracks of the existing data group.
摘要翻译： 一种用于向数据存储介质写入数据的装置，包括数据组（N-3至N + 1）中的数据存储介质，数据组（N-3至N + 1）包括跨越并与存储介质的参考边缘间隔开的轨道，该控制系统可操作以使i） 表示存储介质上的现有数据组（N-1）的轨道与参考边缘之间的距离与参考边缘与数据组（N）的轨迹之间的距离之间的差异的轨道参考差值， 被写入存储介质，使得它是跟随现有数据组（N-1）的下一个数据组，或者ii）可以导出这样的差值的数据被包括在帧（A1到 A5）被写入现有数据组和下一个数据组之间，使得至少一个帧的轨道与参考边缘间距离与现有数据组的轨道基本相同的距离。
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公开(公告)号：US08316289B2
公开(公告)日：2012-11-20
申请号：US12361669
申请日：2009-01-29
IPC分类号： G06F11/00
CPC分类号： H03M13/093 , G11B20/18 , G11B2020/1843 , G11B2220/90 , H03M13/096
摘要： Disclosed is a storage apparatus comprising a data store; a data input; and a data processor arranged to: receive from the data input a block of data to be stored at an append point after sequential data comprising one or more stored blocks of data; retrieve an integrity measure, of one or more stored integrity measures that are associated with one or more respective points in the sequential data, said retrieved integrity measure being associated with a point at or preceding the append point; calculate a new integrity measure using the received block of data and the retrieved integrity measure; and store the received block of data and the new integrity measure in the data store, in addition to at least one stored integrity measure that is associated with a point in the data at or preceding the append point.
摘要翻译： 公开了一种包括数据存储器的存储装置; 数据输入 以及数据处理器，被配置为：在包括一个或多个存储的数据块的顺序数据之后，从所述数据输入接收要存储在附加点的数据块; 检索与顺序数据中的一个或多个相应点相关联的一个或多个存储的完整性度量的完整性度量，所述检索的完整性度量与附加点处或附加点之前的点相关联; 使用接收的数据块和检索的完整性度量计算新的完整性度量; 并且将所接收的数据块和新的完整性度量存储在数据存储器中，以及至少一个存储的完整性度量，其与附加点处或附加点之前的数据点相关联。
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