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1. 发明授权

US09753930B2 Deleting files written on tape 有权
公开(公告)号：US09753930B2
公开(公告)日：2017-09-05
申请号：US14922492
申请日：2015-10-26
申请人： International Business Machines Corporation
发明人： Masayuki Iwanaga , Yumiko Ohta , Yutaka Oishi
IPC分类号： G06F17/00 , G06F17/30 , G11B5/024 , G11B5/008
CPC分类号： G06F17/30076 , G11B5/00813 , G11B5/024
摘要： A method for writing a file from an application of a host onto a tape includes sequentially receiving records forming the file from the application, adding a predetermined number of segments of dummy data (dummy records) subsequently to the plurality of records forming the file such that the records of the file and records of a subsequent file are not included in the same data set, interposing the dummy records between a final record of the file and a head record of the subsequent (next) file, to thereby construct at least one data set that is adjacent to one data set and does not include the records of the file, and writing a data set including the records of the file, a data set (dummy data set) including the final record of the file and the dummy records, and a data set including the subsequent file, onto the tape.

2. 发明授权

US09536558B2 Erasing recorded data by utilizing read head and write head 有权
标题翻译：通过读头和写头擦除记录的数据
公开(公告)号：US09536558B2
公开(公告)日：2017-01-03
申请号：US15065923
申请日：2016-03-10
申请人： International Business Machines Corporation
发明人： Masayuki Iwanaga , Yumiko Ohta , Yutaka Oishi
IPC分类号： G11B5/09 , G11B20/10 , G11B15/04 , G11B20/18 , G11B5/008 , G11B5/584 , G11B5/024 , G11B20/12 , G11B27/36 , G11B5/55
CPC分类号： G11B20/10 , G11B5/00813 , G11B5/00821 , G11B5/024 , G11B5/5508 , G11B5/584 , G11B15/04 , G11B20/1879 , G11B27/36 , G11B2020/10851 , G11B2020/10898 , G11B2020/1267
摘要： Techniques for reducing the time required for erasing specific data recorded on a tape medium. A specific group of records is erased without preliminarily locating the erasure end position. This is carried out by simultaneously utilizing three heads, that is, two read heads and one write head, to detect the erasure end position during data erasure. Various embodiments are applicable to tape media as well as other storage media. Various embodiments are not only applicable as a file system cooperating as a combination of hardware (H/W) and software (S/W), but also applicable in systems, such as databases, that directly use storage without an intermediary file system.
摘要翻译：用于减少擦除记录在磁带介质上的特定数据所需的时间的技术。在没有初步定位擦除结束位置的情况下，擦除特定的记录组。这通过同时使用三个头，即两个读取头和一个写入头来执行，以在数据擦除期间检测擦除结束位置。各种实施例可应用于磁带介质以及其它存储介质。各种实施例不仅适用于作为硬件（H / W）和软件（S / W）的组合协作的文件系统，而且可应用于直接使用没有中间文件系统的存储的系统，例如数据库。

3. 发明授权

US09348837B2 Index writing in a linear tape file system 有权
标题翻译：索引写入线性磁带文件系统
公开(公告)号：US09348837B2
公开(公告)日：2016-05-24
申请号：US14097352
申请日：2013-12-05
申请人： International Business Machines Corporation
发明人： Masayuki Iwanaga , Yumiko Ohta , Yutaka Oishi
IPC分类号： G06F17/30
CPC分类号： G06F17/30182 , G06F17/30091
摘要： Mechanisms are provided for performing a synchronization operation for synchronizing data to a tape medium. The mechanisms receive a request to perform the synchronization operation on the tape medium and obtain file information from a storage device in response to the request. The mechanisms determine if the file information is associated with a file that has been changed since a last index was written to the tape medium. In response to the file information being determined to be associated with a file that has been changed since a last index was written to the tape medium, the mechanisms add index information corresponding to the file information to a partial index. The partial index comprises index information for files less than a total number of files recorded on the tape medium. The mechanisms write the partial index to the tape medium.
摘要翻译：提供了用于执行用于将数据同步到磁带介质的同步操作的机制。机构接收到对磁带介质执行同步操作的请求，并响应于该请求从存储设备获取文件信息。这些机制确定文件信息是否与自上次索引写入磁带介质以来已经更改的文件相关联。响应于文件信息被确定为与从磁带介质写入最后一个索引以来已被改变的文件相关联，所述机制将对应于文件信息的索引信息添加到部分索引。部分索引包括小于记录在磁带介质上的文件总数的文件的索引信息。这些机制将部分索引写入磁带介质。

4. 发明申请

US20160100126A1 TRANSFERRING MULTIPLE RECORDS INCLUDING VIDEO DATA TO/FROM HOST 有权
标题翻译：传输多个记录，包括来自主机的视频数据
公开(公告)号：US20160100126A1
公开(公告)日：2016-04-07
申请号：US14971963
申请日：2015-12-16
申请人： International Business Machines Corporation
发明人： Atsushi Abe , Setsuko Masuda , Yumiko Ohta , Terue Watanabe
IPC分类号： H04N5/782 , H04N5/765 , G11B27/36
CPC分类号： H04N5/782 , G01R31/31855 , G11B27/36 , H04N5/765 , H04N5/783 , H04N5/93 , H04N9/7921 , H04N9/8042 , H04N9/87
摘要： In one embodiment, a magnetic tape device includes a read control configured to sequentially read records included in data sets from a tape medium into a buffer, and send the records included in the data sets to a host in response to determining that there is no C2 error during reading of the data sets. The read control is also configured to skip a predetermined error recovery process in accordance with a video special mode in response to detecting a C2 error during reading of the data sets.
摘要翻译：在一个实施例中，磁带装置包括读取控制，该读取控制被配置为将包含在数据集中的记录从磁带介质顺序读取到缓冲器中，并且响应于确定不存在C2，将包括在数据集中的记录发送到主机读取数据集时出错。读取控制还被配置为响应于在读取数据集期间检测到C2错误而根据视频特殊模式跳过预定的错误恢复处理。

5. 发明授权

US09053745B2 Method for writing file on tape medium that can be read at high speed 有权
标题翻译：在可以高速读取的磁带介质上写入文件的方法
公开(公告)号：US09053745B2
公开(公告)日：2015-06-09
申请号：US14459429
申请日：2014-08-14
申请人： International Business Machines Corporation
发明人： Atsushi Abe , Setsuko Masuda , Yumiko Ohta , Terue Watanabe
IPC分类号： G11B19/02 , G11B5/09 , G06F13/00 , G11B20/12
CPC分类号： G11B20/1201
摘要： Mechanisms for writing a file on a tape medium in a manner that enables high-speed reading are provided. A predetermined format is applied to the medium that divides the medium into a first region of a predetermined length in a longitudinal direction from a region of the medium, and a second region that extends from an end of the first region to a terminal region of the medium in a longitudinal direction and that has a predetermined width with respect to a width of the medium in a transverse direction. Writing a top data portion of a predetermined data amount of the data of the file in the first region and writing data of the file in the second region are performed.
摘要翻译：提供以能够进行高速读取的方式在磁带介质上写入文件的机构。将预定格式应用于从介质的区域沿纵向将介质分成预定长度的第一区域的介质，以及从第一区域的端部延伸到第二区域的第二区域介质在纵向上具有相对于介质在宽度方向上的宽度的预定宽度。在第一区域中写入文件的数据量的预定数据量的顶部数据部分并且在第二区域中写入文件的数据。

6. 发明申请

US20130111080A1 USING HOST TRANSFER RATES TO SELECT A RECORDING MEDIUM TRANSFER RATE FOR TRANSFERRING DATA TO A RECORDING MEDIUM 有权
公开(公告)号：US20130111080A1
公开(公告)日：2013-05-02
申请号：US13660951
申请日：2012-10-25
申请人： International Business Machines Corporation
发明人： Yumiko Ohta , Yutaka Oishi
IPC分类号： G06F3/00
CPC分类号： G06F3/0613 , G06F3/061 , G06F3/0656 , G06F3/0674 , G06F3/0682 , G11B5/00813 , G11B2020/1062 , G11B2020/10814 , G11B2220/90
摘要： Provided are a storage device, controller, and method for using host transfer rates to select a recording medium transfer rate for transferring data to a recording medium. A host transfer rate of data with respect to a buffer is measured. Provided are a plurality of recording medium transfer rates at which data is transferred between the buffer and the recording medium. A determination is made of an amount of decrease in the host transfer rate. The recording medium transfer rate is selected based on the amount of decrease in the host transfer rate. A transfer rate at which the storage device transfers data is set to the selected recording medium transfer rate

7. 发明授权

US10282427B2 Metadata storing technique 有权
公开(公告)号：US10282427B2
公开(公告)日：2019-05-07
申请号：US14919757
申请日：2015-10-22
申请人： International Business Machines Corporation
发明人： Masayuki Iwanaga , Yumiko Ohta , Yutaka Oishi
IPC分类号： G06F17/30
摘要： A computer-implemented metadata processing method and a system includes writing metadata to or reading metadata from a storage medium in which an index that contains metadata of each of one or more pieces of data is stored. The method and system include determining, in response to a processing request, which includes a write request or a read request, when to communicate with a storage area outside the index. At least a portion of content of the metadata relating to the processing request is processed, and accessed, including storing or obtaining, in the index, location information indicating the storage area of the portion of content of the metadata.

8. 发明授权

US09423968B2 Using host transfer rates to select a recording medium transfer rate for transferring data to a recording medium 有权
公开(公告)号：US09423968B2
公开(公告)日：2016-08-23
申请号：US14675621
申请日：2015-03-31
申请人： International Business Machines Corporation
发明人： Yumiko Ohta , Yutaka Oishi
IPC分类号： G06F3/06 , G11B5/008 , G11B20/10
CPC分类号： G06F3/0613 , G06F3/061 , G06F3/0656 , G06F3/0674 , G06F3/0682 , G11B5/00813 , G11B2020/1062 , G11B2020/10814 , G11B2220/90
摘要： Provided are a storage device, controller, and method for using host transfer rates to select a recording medium transfer rate for transferring data to a recording medium. A host transfer rate of data with respect to a buffer is measured. Provided are a plurality of recording medium transfer rates at which data is transferred between the buffer and the recording medium. A determination is made of an amount of decrease in the host transfer rate. The recording medium transfer rate is selected based on the amount of decrease in the host transfer rate. A transfer rate at which the storage device transfers data is set to the selected recording medium transfer rate.

9. 发明授权

US09236065B2 Reclamation of data on tape cartridge 有权
标题翻译：磁带上数据的回收
公开(公告)号：US09236065B2
公开(公告)日：2016-01-12
申请号：US14511660
申请日：2014-10-10
申请人： International Business Machines Corporation
发明人： Atsushi Abe , Yumiko Ohta , Setsuko Masuda , Terue Watanabe
IPC分类号： G11B5/02 , G11B5/09 , G11B5/008 , G11B20/12
CPC分类号： G11B5/00817 , G11B20/1201 , G11B20/1202 , G11B2020/1292
摘要： A method is provided for automatically reclaiming areas with unneeded data in a tape cartridge (medium) storing files updated by appended writing. In this reclamation method, the appended writing entails the sequential compression of data needed by the updated file (needed data) and data not needed by the file (unneeded data) and storage of the compressed data on the medium, and the medium is divided into at least three data partitions for the storage of data.
摘要翻译：提供了一种用于在存储通过附加写入更新的文件的磁带盒（介质）中自动回收具有不需要的数据的区域的方法。在这种回收方法中，附加的写入需要对文件（不需要的数据）不需要的更新文件（所需数据）和数据所需的数据的顺序压缩以及压缩数据在介质上的存储，并且将介质分为用于存储数据的至少三个数据分区。

10. 发明授权

US09058843B2 Recovery of data written before initialization of format in tape media 有权
标题翻译：在磁带介质中恢复格式初始化前写入的数据
公开(公告)号：US09058843B2
公开(公告)日：2015-06-16
申请号：US14450367
申请日：2014-08-04
申请人： International Business Machines Corporation
发明人： Masayuki Iwanaga , Yumiko Ohta , Yutaka Oishi
IPC分类号： G11B5/09 , G11B5/584 , G06F13/00 , G11B20/12 , G11B20/18
CPC分类号： G11B20/1201 , G11B20/18
摘要： A tape medium uses a format to store data in which the tape medium is partitioned into an index partition (IP) and a data partition (DP). The latest metadata related to additional data newly added and written to the DP in accordance with the format is updated and stored in the IP. The same metadata is repeatedly written after the updated metadata (e.g. Index #1) in the IP. Alternatively, additional data newly added and written to the DP is stored in memory, and is called from memory and then added and written after metadata (e.g. Index #0) during the formatting. In either manner, data written prior to formatting may be recovered.
摘要翻译：磁带介质使用格式来存储磁带介质划分成索引分区（IP）和数据分区（DP）的数据。与根据格式新添加和写入DP的附加数据相关的最新元数据将被更新并存储在IP中。相同的元数据在IP中更新的元数据（例如Index＃1）之后重复写入。或者，新添加并写入DP的附加数据被存储在存储器中，并且在存储器中被调用，然后在格式化期间在元数据（例如Index＃0）之后添加和写入。以任一方式，可以恢复格式化之前写入的数据。

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