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1. 发明申请

US20120002317A1 WRITING DATA TO TAPE MEDIUM 失效
标题翻译：将数据写入胶带
公开(公告)号：US20120002317A1
公开(公告)日：2012-01-05
申请号：US13167943
申请日：2011-06-24
申请人： Takamasa HIRATA , Setsuko MASUDA , Yuhko MORI , Yutaka OISHI , Tomoko TAKETOMI , Terue WATANABE
发明人： Takamasa HIRATA , Setsuko MASUDA , Yuhko MORI , Yutaka OISHI , Tomoko TAKETOMI , Terue WATANABE
IPC分类号： G11B5/09
CPC分类号： G11B5/00813 , G11B20/10527 , G11B20/18 , G11B2020/10759 , G11B2220/90
摘要： 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.
摘要翻译：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。

2. 发明申请

US20120250176A1 METHOD AND SYSTEM FOR DETERMINING ACCESS SEQUENCE OF DATA STORED ON A TAPE MEDIUM 失效
标题翻译：用于确定在带状介质上存储的数据的访问顺序的方法和系统
公开(公告)号：US20120250176A1
公开(公告)日：2012-10-04
申请号：US13523654
申请日：2012-06-14
申请人： Takashi KATAGIRI , Setsuko MASUDA , Yuhko MORI , Hirokazu NAKAYAMA , Yutaka OISHI
发明人： Takashi KATAGIRI , Setsuko MASUDA , Yuhko MORI , Hirokazu NAKAYAMA , Yutaka OISHI
IPC分类号： G11B5/09
CPC分类号： G06F3/0641 , G06F3/0611 , G06F3/064 , G06F3/0682 , G06F3/0686 , G11B5/5508 , G11B5/5513 , G11B27/107 , G11B2020/10916 , G11B2220/90
摘要： For determining an access sequence of a plurality of data groups stored on a tape medium, a first data group in the access sequence is selected based on which data group in the plurality of data groups has a beginning closest to a current position of the tape medium. A second data group in the access sequence is selected based on which remaining data group in the plurality of data groups has a beginning closest to an end of the first data group in the access sequence.
摘要翻译：为了确定存储在磁带介质上的多个数据组的访问顺序，基于多个数据组中的哪个数据组具有最接近磁带介质的当前位置的开始来选择访问序列中的第一数据组。基于访问序列中的多个数据组中的哪个剩余数据组具有最接近第一数据组的结尾的开始来选择访问序列中的第二数据组。

3. 发明申请

US20120154946A1 METHOD AND SYSTEM FOR DETERMINING ACCESS SEQUENCE OF DATA STORED ON A TAPE MEDIUM 失效
标题翻译：用于确定在带状介质上存储的数据的访问顺序的方法和系统
公开(公告)号：US20120154946A1
公开(公告)日：2012-06-21
申请号：US12970631
申请日：2010-12-16
申请人： Takashi KATAGIRI , Setsuko MASUDA , Yuhko MORI , Hirokazu NAKAYAMA , Yutaka OISHI
发明人： Takashi KATAGIRI , Setsuko MASUDA , Yuhko MORI , Hirokazu NAKAYAMA , Yutaka OISHI
IPC分类号： G11B5/09
CPC分类号： G06F3/0641 , G06F3/0611 , G06F3/064 , G06F3/0682 , G06F3/0686 , G11B5/5508 , G11B5/5513 , G11B27/107 , G11B2020/10916 , G11B2220/90
摘要： Methods, computer systems, and computer program products are provided for determining an access sequence of a plurality of data groups stored on a tape medium. A first data group in the access sequence is selected based on which data group in the plurality of data groups has a beginning closest to a current position of the tape medium. A second data group in the access sequence is selected based on which remaining data group in the plurality of data groups has a beginning closest to an end of the first data group in the access sequence.
摘要翻译：提供了方法，计算机系统和计算机程序产品，用于确定存储在磁带介质上的多个数据组的访问顺序。基于多个数据组中的哪个数据组具有最接近磁带介质的当前位置的开始来选择访问序列中的第一数据组。基于访问序列中的多个数据组中的哪个剩余数据组具有最接近第一数据组的结尾的开始来选择访问序列中的第二数据组。

4. 发明申请

US20120162807A1 METHOD AND SYSTEM FOR OPERATING A TAPE DRIVE 有权
标题翻译：用于操作磁带驱动器的方法和系统
公开(公告)号：US20120162807A1
公开(公告)日：2012-06-28
申请号：US12976691
申请日：2010-12-22
申请人： Takashi KATAGIRI , Yutaka OISHI , Yuhko MORI , Hirokazu NAKAYAMA
发明人： Takashi KATAGIRI , Yutaka OISHI , Yuhko MORI , Hirokazu NAKAYAMA
IPC分类号： G11B5/02
CPC分类号： G11B15/026 , G06F2213/0038 , G11B15/20 , G11B20/10 , G11B2020/10916 , G11B2220/956
摘要： Methods, computer systems, and computer program products are provided for operating a tape drive comprising a tape medium with a plurality of record groups stored thereon. Access sequence for the plurality of record groups is provided. The tape medium is positioned for reading a record group in the access sequence before a seek command for the record group in the access sequence is received.
摘要翻译：提供了方法，计算机系统和计算机程序产品，用于操作包括其上存储有多个记录组的带介质的磁带机。提供了多个记录组的访问顺序。在接收到接入序列中的记录组的寻道命令之前，磁带介质被定位用于在访问序列中读取记录组。

5. 发明申请

US20120257301A1 APPARATUS AND METHOD FOR WRITING DATA TO TAPE MEDIUM 有权
标题翻译：用于将数据写入带介质的装置和方法
公开(公告)号：US20120257301A1
公开(公告)日：2012-10-11
申请号：US13527683
申请日：2012-06-20
申请人： Setsuko MASUDA , Kenji NAKAMURA , Yutaka OISHI
发明人： Setsuko MASUDA , Kenji NAKAMURA , Yutaka OISHI
IPC分类号： G11B21/02 , G11B5/008
CPC分类号： G11B5/00813 , G11B5/4893 , G11B20/10009 , G11B2020/10898 , G11B2220/93
摘要： 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.
摘要翻译：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。

6. 发明申请

US20140043710A1 REDUCING TOTAL SEEK TIME FOR DETERMINING AN ACCESS SEQUENCE OF DATA STORED ON A TAPE MEDIUM 有权
标题翻译：减少总时间来确定存储在磁带介质上的数据的访问顺序
公开(公告)号：US20140043710A1
公开(公告)日：2014-02-13
申请号：US13570749
申请日：2012-08-09
申请人： Takashi KATAGIRI , Yuhko MORI , Masakatsu MURATA , Hirokazu NAKAYAMA , Yutaka OISHI
发明人： Takashi KATAGIRI , Yuhko MORI , Masakatsu MURATA , Hirokazu NAKAYAMA , Yutaka OISHI
IPC分类号： G11B5/09
CPC分类号： G11B27/107 , G11B5/5513 , G11B20/10 , G11B2020/10916
摘要： A first data group in an access sequence is selected based on which data group in the data groups has a beginning closest to a current position of the tape medium. Those data groups located in specified regions of the tape medium are separated from other data groups located in alternative specified regions of the tape medium. The distance from the current position of the tape medium is set to be a logical distance value, determined by a calculation function, that is substituted for the physical distance value for the data groups that are located in the specified regions as compared with other data groups located in the alternative specified regions. A second data group in the access sequence is selected based on which remaining data group in the data groups has a beginning closest to an end of the first data group in the access sequence.
摘要翻译：基于数据组中的哪个数据组具有最接近磁带介质的当前位置的开始来选择访问序列中的第一数据组。位于带介质的指定区域中的那些数据组与位于磁带介质的备选指定区域中的其他数据组分离。与磁带介质的当前位置的距离被设置为由计算函数确定的逻辑距离值，其代替与其他数据组相比位于指定区域中的数据组的物理距离值位于替代指定区域。基于访问序列中数据组中哪个剩余数据组具有最接近第一数据组的结尾的开始来选择访问序列中的第二数据组。

7. 发明申请

US20110051280A1 OVERHEAD CALCULATION IN WRITING SYNCHRONIZED DATA TO MAGNETIC TAPE 失效
标题翻译：将同步数据写入磁带的OVERHEAD计算
公开(公告)号：US20110051280A1
公开(公告)日：2011-03-03
申请号：US12551280
申请日：2009-08-31
申请人： James M. KARP , Takashi KATAGIRI , Motoko OE , Yutaka OISHI
发明人： James M. KARP , Takashi KATAGIRI , Motoko OE , Yutaka OISHI
IPC分类号： G11B15/46
CPC分类号： G11B15/02 , G11B20/10527 , G11B2220/90
摘要： Various embodiments for writing received synchronized data to magnetic tape having a plurality of wraps using a magnetic tape drive adapted for performing the writing according to an available plurality of predefined tape speeds are provided. In one such embodiment, for each of the available plurality of predefined tape speeds, an average overhead per synchronized command for performing a recursively accumulated backhitchless flush (RABF) cycle is calculated. One of the available plurality of predefined tape speeds having a lowest calculated average overhead is selected. The RABF cycle is performed using the selected one of the available plurality of predefined tape speeds.
摘要翻译：提供了用于使用适于根据可用的多个预定磁带速度执行写入的磁带驱动器将接收的同步数据写入具有多个卷绕的磁带的各种实施例。在一个这样的实施例中，对于可用的多个预定义的磁带速度中的每一个，计算用于执行递归累积的反向无间隙冲洗（RABF）周期的每个同步命令的平均开销。选择具有最低计算平均开销的可用多个预定磁带速度之一。使用所选择的可用多个预定磁带速度之一来执行RABF周期。

8. 发明申请

US20120106309A1 ELIMINATION OF DUPLICATE WRITTEN RECORDS 有权
标题翻译：消除双重写入记录
公开(公告)号：US20120106309A1
公开(公告)日：2012-05-03
申请号：US13216482
申请日：2011-08-24
申请人： Yutaka OISHI
发明人： Yutaka OISHI
IPC分类号： G11B20/18
CPC分类号： G11B20/10527 , G06F3/0608 , G06F3/0641 , G06F3/0682 , G11B2020/1062
摘要： A storage device includes first and second buffers. A request to write a new record from a host is received. A hash value (new S) of the new record is calculated. The hash value (new S) of the new record is checked to determine if the hash value exists in a second buffer. If the new S exists in the second buffer, the new record is compared with a record stored in the second buffer corresponding to the new S to check if the new record and the stored record in the second buffer match each other. If the new record and the stored record match each other, a pointer (a record number) is written as write data of the new record to the recording medium. The pointer points to the record already stored in any one of a recording medium and the second buffer.
摘要翻译：存储装置包括第一和第二缓冲器。接收到从主机写入新记录的请求。计算新记录的哈希值（新S）。检查新记录的哈希值（新S）以确定散列值是否存在于第二缓冲器中。如果新的S存在于第二缓冲器中，则将新记录与存储在与新S相对应的第二缓冲器中的记录进行比较，以检查新记录和第二缓冲器中存储的记录是否彼此匹配。如果新记录和存储的记录彼此匹配，则将指针（记录号）写入记录介质的新记录的写入数据。指针指向已经存储在记录介质和第二缓冲器中的任何一个中的记录。

9. 发明申请

US20120290801A1 CONTROLLING STORING OF DATA 有权
标题翻译：控制数据存储
公开(公告)号：US20120290801A1
公开(公告)日：2012-11-15
申请号：US13463103
申请日：2012-05-03
申请人： Tohru HASEGAWA , Naoki IMAI , Masanori KAMIYA , Yutaka OISHI
发明人： Tohru HASEGAWA , Naoki IMAI , Masanori KAMIYA , Yutaka OISHI
IPC分类号： G06F12/00
CPC分类号： H04L67/1097 , G06F17/30156
摘要： First characteristic information indicating a characteristic of input data is extracted from the input data that is input as data to be stored in any of the storages. Second characteristic information elements are read from a memory unit storing the second characteristic information elements indicating respective characteristics of stored data elements stored in the storages. A specific storage in which the input data is to be stored is determined, out of the storages, by determining a degree of match between the extracted first characteristic information and the second characteristic information elements read. The input data to the determined specific storage is read. The second characteristic information element indicating the characteristic of the stored data element stored in the specific storage is updated, out of the second characteristic information elements retained in the memory unit, on the basis of the extracted first characteristic information.
摘要翻译：从输入的输入数据中提取表示输入数据的特性的第一特征信息作为存储在任一个存储器中的数据。从存储有存储在存储器中的存储的数据元素的各个特征的第二特征信息元素的存储单元中读取第二特征信息元素。通过确定所提取的第一特征信息和所读取的第二特征信息元素之间的匹配程度，从存储器中确定要存储输入数据的特定存储。读取到确定的特定存储器的输入数据。基于所提取的第一特征信息，在保存在存储单元中的第二特征信息元素中，更新指示存储在特定存储器中的存储数据元素的特性的第二特征信息元素。

10. 发明申请

US20120206831A1 TRANSPORT SPEED ADJUSTMENT DEVICE, TRANSPORT SPEED ADJUSTMENT METHOD AND TRANSPORT SPEED ADJUSTMENT PROGRAM FOR ADJUSTING TRANSPORT SPEED OF TAPE MEDIUM 失效
标题翻译：运输速度调整装置，运输速度调整方法和运输速度调整程序，用于调整胶带传送速度
公开(公告)号：US20120206831A1
公开(公告)日：2012-08-16
申请号：US13458828
申请日：2012-04-27
申请人： Takashi KATAGIRI , Hirokazu NAKAYAMA , Yutaka OISHI
发明人： Takashi KATAGIRI , Hirokazu NAKAYAMA , Yutaka OISHI
IPC分类号： G11B15/46
CPC分类号： G11B15/46 , G11B15/1875 , G11B20/10527 , G11B2020/10703 , G11B2020/10981 , G11B2220/90
摘要： A tape drive capable of switching the transport speed of a tape medium among multilevel speeds calculates a data transfer rate from/to a host device, and selects an adjustment mode of the transport speed of the tape medium from a constant speed mode and a speed switch mode according to the calculated data transfer rate. The tape drive in the speed switch mode, pauses a data write or read operation to switch the transport speed of the tape medium while data is written at a first transport speed and when an available capacity of a buffer memory reaches a data volume to be received from the host device during switching of the transport speed and is read out at the first transport speed and when a data volume of a buffer memory reaches a data volume to be transmitted to the host device during switching of the transport speed.
摘要翻译：能够切换多层速度的带介质的传送速度的磁带驱动器计算从主装置的数据传送速率，并从恒速模式和速度切换中选择磁带介质的传送速度的调整模式模式根据计算的数据传输速率。磁带驱动器处于速度切换模式时，暂停数据写入或读取操作以切换磁带介质的传输速度，同时以第一传输速度写入数据，并且当缓冲存储器的可用容量达到要接收的数据量时在传输速度的切换期间从主机设备读取并以第一传输速度读出，并且当缓冲存储器的数据量到达传输速度转换期间传送给主机设备的数据量时。

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