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    • 63. 发明申请
    • Method and Data Processing System For Managing A Mass Storage System
    • 管理大容量存储系统的方法和数据处理系统
    • US20070180001A1
    • 2007-08-02
    • US11562660
    • 2006-11-22
    • Jens-Peter AkelbeinJens FauthChristian Mueller
    • Jens-Peter AkelbeinJens FauthChristian Mueller
    • G06F17/30
    • G06F17/30079G06F17/30091
    • A method for managing a mass storage system wherein the mass storage system comprises a first storage space and a second storage space. A file index is generated which lists in a uniformly distributed way each file along with a first characteristic quantity, a second characteristic quantity, and a status information, wherein the status information specifies if the file is held on the first storage space or on the second storage space. A sample of files is selected from the file index. The sample of files contains a given number of files, wherein the status information of each file of the given number of files specifies the file to be held on the first storage space. The first critical value is determined by use of the first characteristic quantity of each file comprised in the sample of files and a second critical value is determined by use of the second characteristic quantity of each file of the sample of files. Then, a first subset of files comprising each file for which the first characteristic quantity is larger than the first critical value and for which the second characteristic quantity is larger than the second critical value and which is specified by the status information to be held on the first storage device is determined.
    • 一种用于管理大容量存储系统的方法,其中大容量存储系统包括第一存储空间和第二存储空间。 生成文件索引,其以均匀分布的方式列出每个文件以及第一特征量,第二特征量和状态信息,其中状态信息指定文件是保存在第一存储空间还是在第二存储空间 储存空间。 从文件索引中选择一个文件样本。 文件样本包含给定数量的文件,其中给定文件数量的每个文件的状态信息指定要保存在第一存储空间上的文件。 通过使用包含在文件样本中的每个文件的第一特征量来确定第一临界值,并且通过使用文件样本的每个文件的第二特征量来确定第二临界值。 然后,包括第一特征量大于第一临界值并且第二特征量大于第二临界值并且由要保持在第二临界值上的状态信息指定的每个文件的文件的第一子集 确定第一存储设备。