Verfahren zum Erkennen von Datenmanipulationen in einem Bandlaufwerk und Dateisystem

    公开(公告)号:DE112012004297T5

    公开(公告)日:2014-07-03

    申请号:DE112012004297

    申请日:2012-08-23

    Applicant: IBM

    Abstract: Die vorliegende Erfindung stellt ein Verfahren zum Erkennen bereit, ob Daten in einem Bandlaufwerk manipuliert worden sind, das in einem Dateisystem verwendet wird. Das Verfahren beinhaltet die Schritte: (a) Bereitlegen einer ersten Bandkassette, die ein Band enthält, auf dem in einer WORM-Partition mehrere Dateien und Archiv-Datensätze von Indexinformationen und in der R/W-Partition eine Indexinformation gespeichert sind; (b) Lesen und Vergleichen der Indexinformation der R/W-Partition und der neuesten Indexinformation der WORM-Partition miteinander; und (c) Feststellen, dass die Indexinformation der R/W-Partition manipuliert worden ist, wenn diese beiden einzelnen Indexinformationen nicht übereinstimmen.

    Tape drive data alteration detection method and file system

    公开(公告)号:GB2510747A

    公开(公告)日:2014-08-13

    申请号:GB201408043

    申请日:2012-08-23

    Applicant: IBM

    Abstract: The invention provides a method that detects whether data on a tape drive used in a file system has been altered. The method contains: (a) a step that prepares a first tape cartridge provided with a tape in which multiple files and an index information history have been stored in a WORM partition, and index information has been stored in an R/W partition; (b) a step that reads and compares the R/W partition index information and the index information at the end of the WORM partition; and (c) a step that determines that the R/W partition index information has been altered if the R/W partition index information does not match the index information at the end of the WORM partition.

    Device and method for generating information for which multiple files are listed
    4.
    发明专利
    Device and method for generating information for which multiple files are listed 有权
    用于生成多个文件的信息的装置和方法

    公开(公告)号:JP2013101506A

    公开(公告)日:2013-05-23

    申请号:JP2011244961

    申请日:2011-11-08

    Abstract: PROBLEM TO BE SOLVED: To perform access not lowering a performance specialized in sequential media without executing mounting depending on a hardware device on an application side.SOLUTION: In a file system 60, a command processing part 61 takes out an option indicating a file listing method from a command, an index reception part 63 receives an index including a directory name, a file name and a recording position from a tape drive, and an index storage part 66 stores the index in the state as it is or in the state of changing the directory name or the file name according to the listing method indicated by the option. In the meantime, when an IRP reception part 67 receives an IRP (I/O Request Packet) from an OS, an IRP setting part 68 stores the file name inside the index in a buffer of the IRP in the order of the recording position, and a response transmission part 69 returns a status to the OS.

    Abstract translation: 要解决的问题:根据应用侧的硬件设备,不执行安装,执行不降低专用于顺序介质的性能的访问。 解决方案:在文件系统60中,命令处理部分61从命令中取出指示文件列表方法的选项,索引接收部分63从索引接收部分63接收包括目录名称,文件名和记录位置的索引 磁带驱动器和索引存储部分66按照原样存储索引,或者根据选项指示的列表方法来更改目录名称或文件名的状态。 同时,当IRP接收部分67从OS接收到IRP(I / O请求分组)时,IRP设置部分68按照记录位置的顺序将索引内的文件名存储在IRP的缓冲器中, 并且响应发送部69将状态返回到OS。 版权所有(C)2013,JPO&INPIT

    File relocation device, relocation method, and relocation program
    5.
    发明专利
    File relocation device, relocation method, and relocation program 有权
    文件转移设备,转移方法和转移计划

    公开(公告)号:JP2009277147A

    公开(公告)日:2009-11-26

    申请号:JP2008129981

    申请日:2008-05-16

    Abstract: PROBLEM TO BE SOLVED: To provide a technology for optimally relocating a file from the viewpoint of power-saving. SOLUTION: This file relocation device is connected to a plurality of storage devices, for each of a plurality of files stored in the plurality of storage device, refers to history information of access requests to each file, and acquires the file and the number of access requests at the same time for each of all the files. Then, the relocation device divides the plurality of files into a plurality of groups by grouping the files frequently accessed at the same time. A plurality of files in one group are relocated in the same storage device. Then, the relocation device shifts a storage device having not accessed for a predetermined time to a power-saving mode. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:从节电的角度提供用于最佳地重新定位文件的技术。 解决方案:对于存储在多个存储装置中的多个文件中的每一个,该文件重定位装置连接到多个存储装置,参考对每个文件的访问请求的历史信息,并获取该文件和 每个文件的同时访问请求数。 然后,重定位装置通过对同时频繁访问的文件进行分组,将多个文件分割成多个组。 一组中的多个文件被重新定位在相同的存储设备中。 然后,搬迁装置将没有进入预定时间的存储装置移动到省电模式。 版权所有(C)2010,JPO&INPIT

    Device and method for controlling storage of data
    6.
    发明专利
    Device and method for controlling storage of data 有权
    用于控制数据存储的设备和方法

    公开(公告)号:JP2012238125A

    公开(公告)日:2012-12-06

    申请号:JP2011105734

    申请日:2011-05-10

    CPC classification number: H04L67/1097 G06F17/30156

    Abstract: PROBLEM TO BE SOLVED: To achieve the use efficiency of a plurality of storages as a whole in the case of storing data in those storages.SOLUTION: In a storage node 20, a meta data extraction part 21 is configured to extract meta data from storage object data from a client 10, and a node determination part 24 is configured to, on the basis of the capacity information of each storage node stored in a capacity information storage part 22 and summary data obtained by integrating the meta data of the storage data of each storage node stored in a summary data storage part 23, determine a storage node in which the storage object data should be stored, and a data transfer part 25 is configured to, when the determined storage node is a self-node, store the storage object data in a data storage part 27, and a summary data registration part 26 is configured to register the extracted meta data in the summary data of the self-node, and the data transfer part 25 is configured to, when the determined storage node is another node, transfer the storage object data to the node.

    Abstract translation: 要解决的问题:为了在存储这些存储器中的数据的情况下,实现多个存储器的整体的使用效率。 解决方案:在存储节点20中,元数据提取部分21被配置为从客户端10从存储对象数据中提取元数据,并且节点确定部分24被配置为基于来自客户端10的容量信息 存储在容量信息存储部22中的每个存储节点和存储在概要数据存储部23中的存储数据的存储数据的元数据的集成获得的摘要数据,决定存储对象数据的存储节点 ,并且数据传送部25被配置为当确定的存储节点是自节点时,将存储对象数据存储在数据存储部27中,并且概要数据注册部26被配置为将所提取的元数据注册到 自身节点的摘要数据和数据传送部25被配置为当确定的存储节点是另一个节点时,将存储对象数据传送到节点。 版权所有(C)2013,JPO&INPIT

    Pulse control method using multiplier and system therefor
    7.
    发明专利
    Pulse control method using multiplier and system therefor 失效
    使用多路复用器及其系统的脉冲控制方法

    公开(公告)号:JPH11282517A

    公开(公告)日:1999-10-15

    申请号:JP6163598

    申请日:1998-03-12

    CPC classification number: G05B19/4103 Y02P90/265

    Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling an actuator driven by a pulse on a multi-dimensional coordinate. SOLUTION: In this control method, a cutting tool connected with the actuator of a machine tool is controlled on a designated path and at a designated speed by controlling the output pulse of a multiplier. A command for instructing the data of the coordinates of plural points including an A point and a B point on the designated path and a designated speed F and the kind of interpolation is received. Then, the A and B points are interpolated with a straight line, and the interpolated straight line is divided into fine length ΔL and fine length ΔLa corresponding to a fine time ΔT. Either a first control signal for holding the designated speed F corresponding to the fine length ΔL or a second control signal for holding the designated speed F corresponding to the fine length ΔLa is transmitted to a pulse oscillator for supplying a pulse to a multiplier, and the ΔT is changed. Thus, when a cutting tool moves to either ΔL or ΔLa part, the designated speed F can be maintained by properly selecting the control signal.

    Abstract translation: 要解决的问题:提供一种用于控制由多维坐标上的脉冲驱动的致动器的方法。 解决方案:在该控制方法中,通过控制乘法器的输出脉冲,将与机床的致动器连接的切削刀具以指定的路径以指定的速度进行控制。 接收用于指示包括指定路径上的A点和B点以及指定速度F的多个点的坐标数据和插值种类的命令。 然后,用直线插入A点和B点,并将内插的直线分成与精细时间ΔT对应的细长度ΔL和细长ΔLa。 将用于保持与精细长度ΔL对应的指定速度F的第一控制信号或用于保持与精细长度ΔLa相对应的指定速度F的第二控制信号被发送到用于向乘法器提供脉冲的脉冲振荡器, ΔT变化。 因此,当切削刀具移动到ΔL或ΔLa部分时,可以通过适当地选择控制信号来保持指定速度F.

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