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    • 5. 发明申请
    • SINGLE INSTANTIATION METHOD USING FILE CLONE AND FILE STORAGE SYSTEM UTILIZING THE SAME
    • 使用文件夹和使用其的文件存储系统的单一方法
    • WO2013111187A1
    • 2013-08-01
    • PCT/JP2012/000464
    • 2012-01-25
    • HITACHI, LTD.ESAKA, TomonoriNAKAMURA, TakakiKAMEI, HitoshiAGETSUMA, Masakuni
    • ESAKA, TomonoriNAKAMURA, TakakiKAMEI, HitoshiAGETSUMA, Masakuni
    • G06F17/30
    • G06F17/30156G06F17/30091H04L67/1097
    • In file de-duplication using hash value comparison, hash values of all target files must be calculated and actual data of all files must be read for hash value calculation, so that the processing time was long. The present invention provides a file storage system comprising a controller and a volume storing a plurality of files, the volume including a first directory storing a first file and a second file and a second directory storing a third file being created, wherein the controller migrates actual data of the second file to the third file, sets up a management information of the second file so that the third file is referred to when the second file is read, and if the sizes of actual data of the first file and the actual data of the third file are identical and the binaries of the actual data of the first file and the actual data of the third file are identical, sets up a management information of the first file to refer to the third file when reading the first file.
    • 在使用散列值比较的文件重复数据删除中,必须计算所有目标文件的散列值,并且必须读取所有文件的实际数据以进行哈希值计算,以便处理时间长。 本发明提供了一种包括控制器和存储多个文件的卷的文件存储系统,所述卷包括存储第一文件和第二文件的第一目录和存储正在创建的第三文件的第二目录,其中所述控制器迁移实际 将第二文件的数据提供给第三文件,建立第二文件的管理信息,以便在读取第二文件时参考第三文件,并且如果第一文件的实际数据的大小和实际数据的大小 第三文件是相同的,并且第一文件的实际数据和第三文件的实际数据的二进制文件是相同的,当读取第一文件时,设置第一文件的管理信息以引用第三文件。
    • 8. 发明申请
    • FILE STORAGE SYSTEM AND FILE CLONING METHOD
    • 文件存储系统和文件克隆方法
    • WO2013160942A2
    • 2013-10-31
    • PCT/JP2012/002831
    • 2012-04-25
    • HITACHI, LTD.FUKATANI, TakayukiKAMEI, HitoshiMATSUZAWA, KeiichiIWASAKI, Masaaki
    • FUKATANI, TakayukiKAMEI, HitoshiMATSUZAWA, KeiichiIWASAKI, Masaaki
    • G06F17/30
    • G06F17/30212
    • The present invention enables creation of a clone file of a parent file stored in a different volume or a different storage system, and enables migration of a parent file and a clone file among volumes and storage systems. A file storage performs control to create a virtual parent file having an identifier capable of uniquely identifying a parent file among storage systems and volumes, and to acquire block layout information of the parent file using said identifier. The file storage creates a virtual parent file in the volume in which the clone file is created, and sets the file as a virtual parent file of the clone file so as to enable creation of a clone file of a parent file that exists in a different volume or a different storage system. Moreover, by combining creating the virtual parent file and switching the identifier of the parent file which is pointed by the virtual parent file, migration of clone files and parent files astride storage systems and volumes is enabled.
    • 本发明能够创建存储在不同卷或不同存储系统中的父文件的克隆文件,并且使得能够在卷和存储系统之间迁移父文件和克隆文件。 文件存储器执行控制以创建具有能够在存储系统和卷之间唯一地标识父文件的标识符的虚拟父文件,并使用所述标识符获取父文件的块布局信息。 文件存储在创建克隆文件的卷中创建虚拟父文件,并将该文件设置为克隆文件的虚拟父文件,以便能够创建存在于不同的父文件中的父文件的克隆文件 卷或不同的存储系统。 此外,通过组合创建虚拟父文件并切换虚拟父文件指向的父文件的标识符,启用跨越存储系统和卷的克隆文件和父文件的迁移。