公开(公告)号：US20120002317A1

公开(公告)日：2012-01-05

申请号：US13167943

申请日：2011-06-24

Applicant: Takamasa HIRATA ,  Setsuko MASUDA ,  Yuhko MORI ,  Yutaka OISHI ,  Tomoko TAKETOMI ,  Terue WATANABE

Inventor： Takamasa HIRATA ,  Setsuko MASUDA ,  Yuhko MORI ,  Yutaka OISHI ,  Tomoko TAKETOMI ,  Terue WATANABE

IPC: G11B5/09

CPC classification number: G11B5/00813 ,  G11B20/10527 ,  G11B20/18 ,  G11B2020/10759 ,  G11B2220/90

Abstract: In a controller of a tape drive, a CM input-output unit recognizes a tape format; a tape variable acquisition unit acquires tape variables; a setting variable acquisition unit acquires setting variables; and a minimum number calculator calculates a minimum number m of sub datasets, which are to be written to a tape to secure resistance to burst error, by using the tape variables and setting variables. When a command processor receives a synchronization command, the buffer manager generates n sub datasets for storing data in the buffer. If n is smaller than m, m sub datasets are padded out and set as write data. If n is m or more, the n sub datasets are set as write data. Then, the channel input-output unit writes the write data to the tape.

Abstract translation: 在磁带驱动器的控制器中，CM输入 - 输出单元识别磁带格式; 磁带变量获取单元获取磁带变量; 设置变量获取单元获取设置变量; 并且最小数量计算器通过使用磁带变量和设置变量来计算要写入磁带以确保电阻突发错误的子数据集的最小数量m。 当命令处理器接收到同步命令时，缓冲器管理器生成用于在缓冲器中存储数据的n个子数据集。 如果n小于m，则m个子数据集被填充并设置为写入数据。 如果n为m以上，则将n个子数据集设为写入数据。 然后，通道输入 - 输出单元将写数据写入磁带。

公开(公告)号：US07852600B2

公开(公告)日：2010-12-14

申请号：US12470331

申请日：2009-05-21

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi ,  Keisuke Tanaka

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi ,  Keisuke Tanaka

IPC: G11B5/584

CPC classification number: G11B5/584

Abstract: An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old data behind EOD of new data. A channel input/output unit receives, data read out with a read head and a buffer managing unit receives this data. A header information determining unit determines whether this data includes header information of the old data. If it is determined that this data includes the header information of the old data, a data set determining unit determines whether a data set is extractable from this data. If it is determined that data set is not extractable, a move signal output unit outputs a signal for moving the read head in a direction of the new data.

Abstract translation: 提供一种用于读出在具有读取头的磁带上重新编码的数据的装置和方法。 命令处理单元接收新数据EOD背面读出旧数据的请求。 通道输入/输出单元接收用读取头读出的数据和缓冲器管理单元接收该数据。 标题信息确定单元确定该数据是否包括旧数据的标题信息。 如果确定该数据包括旧数据的标题信息，则数据集确定单元确定数据集是否可从该数据中提取。 如果确定数据集不可提取，则移动信号输出单元输出用于在新数据的方向上移动读取头的信号。

公开(公告)号：US20080310043A1

公开(公告)日：2008-12-18

申请号：US12136084

申请日：2008-06-10

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Hirokazu Nakayama ,  Yutaka O. Ishi

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Hirokazu Nakayama ,  Yutaka O. Ishi

IPC: G11B5/09

CPC classification number: G11B20/1816 ,  G11B2220/90

Abstract: The present invention provides a technique for detecting a defect in a tape medium within a relatively short or narrow range. A tape defect detection device includes: a read unit for reading data from a tape medium; an error correction unit for performing error corrections for the data read by the read unit; a correction number counting unit for counting the number of the error corrections, made by the error correction unit, for each of multiple divided areas of the tape medium; a temporary storage unit for temporarily storing, for each of the areas, the number of the error corrections counted by the correction number counting unit; and a detection unit for detecting a defect in the tape medium, on the basis of a distribution of divided areas each having a larger number of error corrections than other divided areas on the tape medium.

Abstract translation: 本发明提供了一种在相对较短或较窄范围内检测带介质中的缺陷的技术。 磁带缺陷检测装置包括：读取单元，用于从磁带介质读取数据; 纠错单元，用于对读取单元读取的数据进行纠错; 校正数计数单元，用于针对所述带介质的多个分割区域中的每一个，对由所述误差校正单元进行的误差校正次数进行计数; 临时存储单元，用于针对每个区域临时存储由所述校正数计数单元计数的所述错误校正的数量; 以及检测单元，用于根据磁带介质上的其他分割区域的误差校正次数分配的分布，检测带介质中的缺陷。

公开(公告)号：US08972654B2

公开(公告)日：2015-03-03

申请号：US13698353

申请日：2011-03-23

Applicant: Takamasa Hirata ,  Setsuko Masuda ,  Yuhko Mori ,  Yutaka Oishi ,  Terue Watanabe

Inventor： Takamasa Hirata ,  Setsuko Masuda ,  Yuhko Mori ,  Yutaka Oishi ,  Terue Watanabe

IPC: G06F12/00 ,  G06F3/06 ,  G11B20/12

CPC classification number: G06F3/0682 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0638 ,  G06F3/0643 ,  G06F3/0652 ,  G06F17/30174 ,  G11B20/1202 ,  G11B2220/956

Abstract: A mechanism is provided for tape writing of small transactions. A first file is written as a plurality of fixed-length data sets (DS), the DS number of the final DS in the plurality of DS is stored in memory as #N(DS#N) and the WP number as #M(WP#M), and the final first file and the second file in the DS following the final DS(DS#N, WP#M) containing the first file are packed and written in sequential DS units, and are stored as DS#N, DS#N+1, etc, and WP#M+1 in sequential order in DS containing the second file. The remaining first, second, or third file is packed and DS#N with WP#M is overwritten as DS#N with WP#M+2, and the remaining #N in the DS numbers of the second file and the third file in the subsequent DS are written as DS#N+1, N+2, etc. with WP#M+2, and the DS#N, #N+1, #N+2, etc. with WP+M+2 are stored.

Abstract translation: 提供了一种用于磁带写入小事务的机制。 将第一文件写为多个固定长度数据集（DS），将多个DS中的最终DS的DS编号作为#N（DS＃N）存储在存储器中，将WP编号作为#M（ WP＃M），并且包含第一文件的最后DS（DS＃N，WP＃M）后的DS中的最终的第一个文件和第二个文件以连续的DS单元打包和写入，并且被存储为DS＃N ，DS＃N + 1等，WP＃M + 1按顺序排列在包含第二个文件的DS中。 剩余的第一，第二或第三文件被打包，具有WP＃M的DS＃N被覆盖为具有WP＃M + 2的DS＃N，并且第二文件的DS号码中的剩余#N和第 后续的DS用WP＃M + 2写入DS＃N + 1，N + 2等，WP + M + 2的DS＃N，＃N + 1，＃N + 2等 存储。

公开(公告)号：US08498075B2

公开(公告)日：2013-07-30

申请号：US13056966

申请日：2009-07-15

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi

IPC: G11B15/04 ,  G11B5/09 ,  G11B5/584

CPC classification number: G11B5/00813 ,  G11B5/4893 ,  G11B20/10009 ,  G11B2020/10898 ,  G11B2220/93

Abstract: In a controller of a tape drive, a command processing unit receives a request to write new data, an offset determination unit determines whether old data is not partially overwritten with new data, and if old data is not partially overwritten with new data, a head position management unit makes a write head offset toward the unoverwritten portion. Then, a channel input/output unit reads pattern data that disables old data from a pattern storage unit and outputs the data to the write head to thereby overwrite the old data with the pattern data. After that, a tape transport management unit rewinds a tape and the head position management unit returns the write head to the original position to overwrite the old data with the new data as usual.

Abstract translation: 在磁带驱动器的控制器中，命令处理单元接收写入新数据的请求，偏移确定单元确定旧数据是否未被新数据覆盖，并且如果旧数据未被新数据部分地覆盖，则头部 位置管理单元使未写入部分的写入头偏移。 然后，通道输入/输出单元读取从模式存储单元禁用旧数据的模式数据，并将数据输出到写入头，从而用模式数据覆盖旧数据。 之后，磁带传送管理单元倒带，并且头位置管理单元将写入头返回到原始位置，以照旧的方式用新数据覆盖旧数据。

公开(公告)号：US20130094105A1

公开(公告)日：2013-04-18

申请号：US13271888

申请日：2011-10-12

Applicant: Pamela R. Nylander-Hill ,  Yutaka Oishi ,  Setsuko Masuda

Inventor： Pamela R. Nylander-Hill ,  Yutaka Oishi ,  Setsuko Masuda

IPC: G11B5/09

CPC classification number: G11B27/36 ,  G11B20/18 ,  G11B2020/183 ,  G11B2220/90

Abstract: In one embodiment, a tape drive system includes a read channel configured for performing a portion of a data transfer operation, logic adapted for monitoring the data transfer operation for detecting one or more temps within a sliding window spanning a last group of datasets processed, logic adapted for measuring interference between first tier and second tier recovery methods based on the monitoring, logic adapted for setting a backhitch delay based on conditions relating to the interference of first tier and second tier recovery methods as it relates to a determined error burst, and logic adapted for performing a backhitch and altering at least one condition of the data transfer operation after the backhitch delay.

Abstract translation: 在一个实施例中，磁带驱动器系统包括被配置为执行数据传送操作的一部分的读通道，适于监视数据传输操作的逻辑，用于检测跨越处理的最后一组数据集的滑动窗口内的一个或多个温度，逻辑 适于基于所述监测来测量第一层和第二层恢复方法之间的干扰，所述逻辑适于基于与确定的错误突发相关的第一层和第二层恢复方法的干扰相关的条件来设置后退延迟，以及逻辑 适于在后退延迟之后执行后退和改变数据传送操作的至少一个条件。

公开(公告)号：US20120257301A1

公开(公告)日：2012-10-11

申请号：US13527683

申请日：2012-06-20

Applicant: Setsuko MASUDA ,  Kenji NAKAMURA ,  Yutaka OISHI

Inventor： Setsuko MASUDA ,  Kenji NAKAMURA ,  Yutaka OISHI

IPC: G11B21/02 ,  G11B5/008

CPC classification number: G11B5/00813 ,  G11B5/4893 ,  G11B20/10009 ,  G11B2020/10898 ,  G11B2220/93

Abstract: In a controller of a tape drive, a command processing unit receives a request to write new data, an offset determination unit determines whether old data is not partially overwritten with new data, and if old data is not partially overwritten with new data, a head position management unit makes a write head offset toward the unoverwritten portion. Then, a channel input/output unit reads pattern data that disables old data from a pattern storage unit and outputs the data to the write head to thereby overwrite the old data with the pattern data. After that, a tape transport management unit rewinds a tape and the head position management unit returns the write head to the original position to overwrite the old data with the new data as usual.

Abstract translation: 在磁带驱动器的控制器中，命令处理单元接收写入新数据的请求，偏移确定单元确定旧数据是否未被新数据覆盖，并且如果旧数据未被新数据部分地覆盖，则头部 位置管理单元使未写入部分的写入头偏移。 然后，通道输入/输出单元读取从模式存储单元禁用旧数据的模式数据，并将数据输出到写入头，从而用模式数据覆盖旧数据。 之后，磁带传送管理单元倒带，并且头位置管理单元将写入头返回到原始位置，以照旧的方式用新数据覆盖旧数据。

公开(公告)号：US20110128645A1

公开(公告)日：2011-06-02

申请号：US13056966

申请日：2009-07-15

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi

IPC: G11B15/04

CPC classification number: G11B5/00813 ,  G11B5/4893 ,  G11B20/10009 ,  G11B2020/10898 ,  G11B2220/93

Abstract: In a controller of a tape drive, a command processing unit receives a request to write new data, an offset determination unit determines whether old data is not partially overwritten with new data, and if old data is not partially overwritten with new data, a head position management unit makes a write head offset toward the unoverwritten portion. Then, a channel input/output unit reads pattern data that disables old data from a pattern storage unit and outputs the data to the write head to thereby overwrite the old data with the pattern data. After that, a tape transport management unit rewinds a tape and the head position management unit returns the write head to the original position to overwrite the old data with the new data as usual.

Abstract translation: 在磁带驱动器的控制器中，命令处理单元接收写入新数据的请求，偏移确定单元确定旧数据是否未被新数据覆盖，并且如果旧数据未被新数据部分地覆盖，则头部 位置管理单元使未写入部分的写入头偏移。 然后，通道输入/输出单元读取从模式存储单元禁用旧数据的模式数据，并将数据输出到写入头，从而用模式数据覆盖旧数据。 之后，磁带传送管理单元倒带，并且头位置管理单元将写入头返回到原始位置，以照旧的方式用新数据覆盖旧数据。

公开(公告)号：US07880993B2

公开(公告)日：2011-02-01

申请号：US12136084

申请日：2008-06-10

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Hirokazu Nakayama ,  Yutaka Oishi

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Hirokazu Nakayama ,  Yutaka Oishi

IPC: G11B5/09

CPC classification number: G11B20/1816 ,  G11B2220/90

Abstract: The present invention provides a technique for detecting a defect in a tape medium within a relatively short or narrow range. A tape defect detection device includes: a read unit for reading data from a tape medium; an error correction unit for performing error corrections for the data read by the read unit; a correction number counting unit for counting the number of the error corrections, made by the error correction unit, for each of multiple divided areas of the tape medium; a temporary storage unit for temporarily storing, for each of the areas, the number of the error corrections counted by the correction number counting unit; and a detection unit for detecting a defect in the tape medium, on the basis of a distribution of divided areas each having a larger number of error corrections than other divided areas on the tape medium.

Abstract translation: 本发明提供了一种在相对较短或较窄范围内检测带介质中的缺陷的技术。 磁带缺陷检测装置包括：读取单元，用于从磁带介质读取数据; 纠错单元，用于对读取单元读取的数据进行纠错; 校正数计数单元，用于针对所述带介质的多个分割区域中的每一个，对由所述误差校正单元进行的误差校正次数进行计数; 临时存储单元，用于针对每个区域临时存储由所述校正数计数单元计数的所述错误校正的数量; 以及检测单元，用于根据磁带介质上的其他分割区域的误差校正次数分配的分布，检测带介质中的缺陷。

公开(公告)号：US20100014189A1

公开(公告)日：2010-01-21

申请号：US12470331

申请日：2009-05-21

Applicant: Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi ,  Keisuke Tanaka

Inventor： Setsuko Masuda ,  Kenji Nakamura ,  Yutaka Oishi ,  Keisuke Tanaka

IPC: G11B5/584

CPC classification number: G11B5/584

Abstract: An apparatus and method for reading out data recoded on a tape with a read head is provided. A command processing unit receives a request for reading out old data behind EOD of new data. A channel input/output unit receives, data read out with a read head and a buffer managing unit receives this data. A header information determining unit determines whether this data includes header information of the old data. If it is determined that this data includes the header information of the old data, a data set determining unit determines whether a data set is extractable from this data. If it is determined that data set is not extractable, a move signal output unit outputs a signal for moving the read head in a direction of the new data.

Abstract translation: 提供一种用于读出在具有读取头的磁带上重新编码的数据的装置和方法。 命令处理单元接收新数据EOD背面读出旧数据的请求。 通道输入/输出单元接收用读取头读出的数据和缓冲器管理单元接收该数据。 标题信息确定单元确定该数据是否包括旧数据的标题信息。 如果确定该数据包括旧数据的标题信息，则数据集确定单元确定数据集是否可从该数据中提取。 如果确定数据集不可提取，则移动信号输出单元输出用于在新数据的方向上移动读取头的信号。