公开(公告)号：EP2328144A4

公开(公告)日：2011-12-28

申请号：EP09804852

申请日：2009-07-15

Applicant: IBM

Inventor： OISHI YUTAKA ,  NAKAMURA KENJI ,  MASUDA SETSUKO

IPC: G11B5/008 ,  G11B5/48

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

公开(公告)号：JP2004152347A

公开(公告)日：2004-05-27

申请号：JP2002314140

申请日：2002-10-29

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： KIMURA MASATOSHI ,  TAJI TAKASHI ,  OGURA EIJI ,  TSURUTA KAZUHIRO ,  NAKAMURA KENJI

IPC: G06F3/06 ,  G11B5/09 ,  G11B15/00 ,  G11B15/02 ,  G11B15/04 ,  G11B15/16 ,  G11B15/20 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18

CPC classification number: G11B15/026 ,  G11B15/005 ,  G11B15/04 ,  G11B15/16 ,  G11B15/20 ,  G11B20/1217 ,  G11B20/18

Abstract: PROBLEM TO BE SOLVED: To record the information showing contents of an error without altering original data which are to be written, when the writing error occurs. SOLUTION: The storage device 110 for recording the data to be written by dividing them into a plurality of blocks is provided with an error detecting part 245 for detecting the writing error with respect to the recording medium to obtain the error information showing the contents of error, a recording position deciding part 235 for deciding the recording position on the recording medium whereon each of a plurality of blocks formed by dividing the data to be written is to be written, in accordance with the detected error information, and a block writing part 240 for writing each of a plurality of blocks into the recording position on the recording medium decided by the recording position deciding part. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2010040106A

公开(公告)日：2010-02-18

申请号：JP2008202309

申请日：2008-08-05

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： OISHI YUTAKA ,  NAKAYAMA KOICHI ,  MASUDA SETSUKO ,  NAKAMURA KENJI

IPC: G11B5/09 ,  G11B20/10 ,  G11B20/12

CPC classification number: G11B5/584

Abstract: PROBLEM TO BE SOLVED: To solve a following problem: data written in an ABF lap cannot be read out by being overwritten by the other data written in the ABF lap or data written in a normal lap. SOLUTION: In a controller 16 of a tape drive, a buffer managing part 42 detects the occurrence of flash, a channel input/output part 43 writes first data in a ABF lap of a normal direction at the occurrence of flash through a write-in head, and writes second data in a second ABF lap of the reverse direction at the occurrence of flash, after that, the part 43 writes first data and second data in a first normal lap of a normal direction adjacent to the first ABF lap. Among them, when the second data is written in the second ABF lap, an offset discriminating part 44 controls the write-in head so that the write-in head is offset to a direction of a second normal lap of a reverse direction used next to the first normal lap. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了解决以下问题：由ABF圈中写入的其他数据或正常圈中写入的数据覆盖ABF圈中写入的数据不能被读出。 解决方案：在磁带驱动器的控制器16中，缓冲器管理部分42检测闪光的发生，通道输入/输出部分43在闪光发生时在正常方向的ABF圈中写入第一数据，通过 写入头，并且在闪光发生时在反方向的第二ABF圈中写入第二数据，之后，部分43将第一数据和第二数据写入与第一ABF相邻的法线方向的第一正常圈 一圈。 其中，当在第二ABF圈中写入第二数据时，偏移识别部分44控制写入头，使得写入头偏移到除了第二个ABF圈之外的反向的第二正常搭接的方向 第一正常圈 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010027118A

公开(公告)日：2010-02-04

申请号：JP2008185083

申请日：2008-07-16

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： MASUDA SETSUKO ,  OISHI YUTAKA ,  NAKAMURA KENJI ,  TANAKA KEISUKE

IPC: G11B5/09 ,  G11B20/10

CPC classification number: G11B5/584

Abstract: PROBLEM TO BE SOLVED: To accelerate reading out of a specific kind of data from among a plurality of kinds of data with different formats.
SOLUTION: In a controller 16 of a tape drive, a command processing unit 41 receives a request for reading out old data behind EOD of new data; a channel input/output unit 43 receives data read out with a read head in response to the request; and a buffer managing unit 42 receives this data. A header information determining unit 44 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 45 determines whether a data set is extractable from this data. If it is determined that the data set is not extractable, a move signal output unit 47 outputs a signal for moving the read head in a direction of the new data.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：加速从具有不同格式的多种数据中读出特定种类的数据。 解决方案：在磁带驱动器的控制器16中，命令处理单元41接收新数据背后的EOD读出旧数据的请求; 通道输入/输出单元43响应于该请求接收用读取头读出的数据; 并且缓冲器管理单元42接收该数据。 头信息确定单元44确定该数据是否包括旧数据的头信息。 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45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47输出用于在新数据的方向上移动读取头的信号。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009163835A

公开(公告)日：2009-07-23

申请号：JP2008001685

申请日：2008-01-08

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： OISHI YUTAKA ,  NAKAMURA KENJI ,  MASUDA SETSUKO

IPC: G11B20/10 ,  G11B20/18

CPC classification number: G11B20/1883 ,  G11B20/1833 ,  G11B27/36 ,  G11B2020/183 ,  G11B2020/1836 ,  G11B2020/1896 ,  G11B2220/20 ,  G11B2220/90

Abstract: PROBLEM TO BE SOLVED: To provide an information recording device capable of performing retrial having a position shifted during overwriting of data set written in a recording medium.
SOLUTION: To enable identification based on a writing order number of a data set and the number of writing times (WP) of the data set of the number, data sets are sequentially written in a recording medium. By using a data set written in the recording medium as an old data set, the old data set is substantially overwritten with a data of a new number. A write control means is provided for executing the overwriting means of the old data set by using a value having WP added as a new WP, when an error occurs during overwriting, in a position where the recording medium is shifted forward from the position of the old data set of the recording medium. A predetermined distance is a distance where overwriting of a part of the old data set with a new data set inhibits error correction.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种信息记录装置，其能够执行在重写写入记录介质中的数据集时移位的重试。 解决方案：为了能够基于数据集的写入顺序号和数字的数据组的写入次数（WP）来进行识别，数据组被顺序地写入记录介质。 通过使用写在记录介质中的数据集作为旧数据集，旧数据集被新数字的数据基本上覆盖。 一种写控制装置，用于通过使用添加有WP作为新WP的值来执行旧数据集的重写装置，当在重写期间发生错误时，在记录介质从位置 记录介质的旧数据集。 预定距离是用新数据集重写一部分旧数据集的距离，禁止纠错。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008310902A

公开(公告)日：2008-12-25

申请号：JP2007159126

申请日：2007-06-15

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： NAKAYAMA KOICHI ,  OISHI YUTAKA ,  MASUDA SETSUKO ,  NAKAMURA KENJI

IPC: G11B20/18

CPC classification number: G11B20/1816 ,  G11B2220/90

Abstract: PROBLEM TO BE SOLVED: To provide a technique of detecting a defect having a relatively narrow range on a tape medium.
SOLUTION: A tape defect detecting device includes a reading unit for reading data from a tape medium, an error correcting unit for performing error correction with respect to the data read by the reading unit, a number-of-times-of-correction counting unit for counting the number of times of error correction by the error correcting unit for each of a plurality of regions into which the tape medium is divided, a temporary storing unit for temporarily storing the number of times of error correction counted by the number-of-times-of-correction counting unit for each region, and a detection unit for detecting a defect on the tape medium based on a distribution on the tape medium of regions having a relatively large number of times of error correction as compared to those of other regions. The detection unit preferably uses the Gini coefficient to detect a situation in which the regions having a relatively large number of times of error correction as compared to those of other regions are concentrated at a particular position on the tape medium.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在带介质上检测具有相对窄范围的缺陷的技术。 解决方案：磁带缺陷检测装置包括用于从磁带介质读取数据的读取单元，用于对由读取单元读取的数据执行纠错的纠错单元， 校正计数单元，用于对由所述带介质划分成的多个区域中的每个区域进行纠错单元的误差校正次数的计数;临时存储单元，用于临时存储以所述数量为单位的误差校正次数 每个区域的校正次数计数单元;以及检测单元，用于基于在具有相对大量的错误校正次数的区域上的带介质上的分布来检测带介质上的缺陷，与那些 的其他地区。 检测单元优选使用基尼系数来检测与其他区域相比具有相对大量的纠错次数的区域集中在带介质上的特定位置的情况。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008276879A

公开(公告)日：2008-11-13

申请号：JP2007120301

申请日：2007-04-27

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： OISHI YUTAKA ,  NAKAMURA KENJI ,  MASUDA SETSUKO

IPC: G11B20/18 ,  G11B20/10 ,  G11B20/12

CPC classification number: G11B5/584 ,  G11B15/05

Abstract: PROBLEM TO BE SOLVED: To provide a write retry method for reducing permanent errors, and a magnetic tape device including the method.
SOLUTION: A write control method for writing at least one data set in a predetermined distance of a tape medium in a longitudinal direction repeats a retry operation for writing data set in a tape position where a tape medium is forwarded only by a small distance when an error occurs while writing the data set. When either the repetition step reaches the predetermined number of times or the write limit time of one data set is exceeded is achieved, the tape medium is forwarded from the tape position of the data set correctly written immediately before in time to a position immediately before the forward tape position of a predetermined distance to execute a write retry operation. The number of permanent errors is reduced as compared with the conventional case within a timeout. Thus, unnecessary tape cartridge replacing requests are reduced.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于减少永久性错误的写入重试方法，以及包括该方法的磁带装置。 解决方案：用于在纵向方向上写入带介质的预定距离中的至少一个数据集的写入控制方法重复用于将数据集写入磁带介质被转发的磁带位置的重试操作， 编写数据集时发生错误时的距离。 当重复步骤达到预定次数或超过一个数据集的写入限制时间时，磁带介质从紧接在时间之前正确写入的数据集的磁带位置转发到紧接在 转发预定距离的磁带位置以执行写入重试操作。 与超时中的常规情况相比，永久性错误的数量减少。 因此，减少了不必要的磁带盒更换请求。 版权所有（C）2009，JPO＆INPIT