Tape storage device
    2.
    发明专利
    Tape storage device 有权
    磁带存储设备

    公开(公告)号:JP2013140653A

    公开(公告)日:2013-07-18

    申请号:JP2012000308

    申请日:2012-01-05

    Abstract: PROBLEM TO BE SOLVED: To provide a tape storage device capable of dissolving or reducing complicated tape travel control or head position movement control.SOLUTION: In the tape storage device including a R/W head, a data buffer, a motor driver controlling a motor for travelling a tape, and a controller, the controller performs control for: (i) writing the data stored in a buffer, subsequently writing an interval marker without interruption after the buffer is empty of the stored data, and writing next data subsequently to the interval marker when the next data is stored in the buffer in first round writing in a single track in the tape, (ii) writing data stored in the buffer in an area of the interval marker in second round writing in the single track, and (iii) writing data stored in the buffer in the area in which no data is written of the interval marker in third and subsequent rounds writing in the single track, while making the tape travel at a constant speed.

    Abstract translation: 要解决的问题:提供能够解决或减少复杂的磁带行驶控制或磁头位置移动控制的磁带存储装置。解决方案:在包括R / W磁头,数据缓冲器,控制电动机的电机驱动器的磁带存储装置中 用于旅行磁带和控制器时,控制器执行以下控制:(i)写入存储在缓冲器中的数据,随后在缓冲器为空的存储数据之后不间断地写入间隔标记,然后将下一个数据写入到 当在磁带中的单个轨道中的第一轮写入中将下一数据存储在缓冲器中时,间隔标记,(ii)将存储在缓冲器中的数据写入间隔标记的区域中,以在第二循环中写入单个轨道,以及( iii)在使磁带以恒定的速度行进的同时,在第三次和随后的循环中写入间隔标记的数据的区域中存储在缓冲器中的数据写入单个磁道。

    Device and method removing duplication of file
    3.
    发明专利
    Device and method removing duplication of file 有权
    删除文件复用的设备和方法

    公开(公告)号:JP2012093827A

    公开(公告)日:2012-05-17

    申请号:JP2010238487

    申请日:2010-10-25

    Inventor: TOSAKA EIJI

    Abstract: PROBLEM TO BE SOLVED: To shorten the time needed to remove duplication of a file without using file data.SOLUTION: A WWUID which is newly given as a file is created or updated and taken over when the file is duplicated is given to each file. In a backup device 20, a file name acceptance part 21 receives the file name of a file to be backed up, a WWUID reception part 22 receives a WWUID corresponding to the file name, and a WWUID retrieval part 23 retrieves the same WWUID from management information on backup on the previous day at a backup destination; only when the retrieval ends in failure, a file operation instruction part 26 instructs the file to be backed up to be stored at the backup destination. Then, an Rcnt update instruction part 24 instructs the number of times of reference to the WWUID at the backup destination to be updated and a second management information update instruction part 25 instructs management information on backup on the day to be updated.

    Abstract translation: 要解决的问题:缩短在不使用文件数据的情况下删除文件重复所需的时间。

    解决方案:创建或更新新给予的文件作为文件的WWUID,并将文件复制给每个文件时接管。 在备份装置20中,文件名接收部21接收要备份的文件的文件名,WWUID接收部22接收与文件名对应的WWUID,WWUID检索部23从管理检索相同的WWUID 前一天在备份目的地备份的信息; 只有当检索结束时,文件操作指令部分26指示要备份的文件被存储在备份目的地。 然后,Rcnt更新指示部24指示要备份目的地的WWUID的参考次数被更新,第二管理信息更新指示部25指示要更新的一天的备份的管理信息。 版权所有(C)2012,JPO&INPIT

    Systeme und Verfahren zum Verwalten einer virtuellen Bandarchiv-Domäne

    公开(公告)号:DE112011103299T5

    公开(公告)日:2013-07-11

    申请号:DE112011103299

    申请日:2011-07-29

    Applicant: IBM

    Abstract: Es werden Systeme und Verfahren zum Verwalten einer virtuellen Bandarchiv-(VTL-)Domäne, die mit einem Host verbunden werden kann, bereitgestellt. Ein System weist eine Vielzahl von VTL-Knoten auf, die so konfiguriert sind, dass sie mehrere gelöschte Arbeitsdatenträger speichern. Jeder VTL-Knoten weist einen Prozessor auf, der so konfiguriert ist, dass er zumindest einen Teil des nachstehenden Verfahrens ausführt. Ein Verfahren beinhaltet das Empfangen einer Anforderung vom Host zum Aufheben der Bindung eines Datenträgers in einem aus der Vielzahl von VTL-Knoten, das Übertragen des Datenträgers in eine Arbeitskategorie als Reaktion auf den Empfang der Anforderung, das Löschen von Daten auf dem Datenträger sowie das Kategorisieren des Datenträgers als einen gelöschten Arbeitsdatenträger und das Übertragen der Eigentümerschaft des gelöschten Arbeitsdatenträgers auf der Grundlage von für die Vielzahl von VTL-Knoten festgelegten Kriterien an einen VTL-Knoten aus der Vielzahl von VTL-Knoten. Außerdem werden Computerspeichermedien bereitgestellt, die einen Computercode zum Ausführen des obigen Verfahrens aufweisen.

    Systems and methods for managing a virtual tape library domain

    公开(公告)号:GB2497465B

    公开(公告)日:2014-07-09

    申请号:GB201304553

    申请日:2011-07-29

    Applicant: IBM

    Abstract: Systems and methods for managing a virtual tape library (VTL) domain capable of being coupled to a host are provided. One system includes a plurality of VTL nodes configured to store multiple scratch erased volumes. Each VTL node comprises a processor configured to perform at least a portion of the below method. One method includes receiving a request from the host to de-mount a volume in one of the plurality of VTL nodes, transferring the volume to a scratch category in response to receiving the request, erasing data in the volume and categorizing the volume as a scratch erased volume, and providing ownership of the scratch erased volume to a VTL node in the plurality of VTL nodes based on pre-determined criteria for the plurality of VTL nodes. Also provided are computer storage mediums including computer code for performing the above method.

    Systems and methods for managing a virtual tape library domain

    公开(公告)号:GB2497465A

    公开(公告)日:2013-06-12

    申请号:GB201304553

    申请日:2011-07-29

    Applicant: IBM

    Abstract: Systems and methods for managing a virtual tape library (VTL) domain capable of being coupled to a host are provided. One system includes a plurality of VTL nodes configured to store multiple scratch erased volumes. Each VTL node comprises a processor configured to perform at least a portion of the below method. One method includes receiving a request from the host to de-mount a volume in one of the plurality of VTL nodes, transferring the volume to a scratch category in response to receiving the request, erasing data in the volume and categorizing the volume as a scratch erased volume, and providing ownership of the scratch erased volume to a VTL node in the plurality of VTL nodes based on pre-determined criteria for the plurality of VTL nodes. Also provided are computer storage mediums including computer code for performing the above method.

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