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    • 10. 发明授权
    • Method for creating a index of the data blocks
    • 创建数据块索引的方法
    • US08271462B2
    • 2012-09-18
    • US12965379
    • 2010-12-10
    • Yun-Song WangMing-Sheng ZhuChih-Feng Chen
    • Yun-Song WangMing-Sheng ZhuChih-Feng Chen
    • G06F7/00G06F17/00
    • G06F3/0641G06F3/0608G06F3/067
    • An method for creating a index of the data blocks is applicable in data de-duplication procedure, includes loading an index file, the index file includes a plurality of location blocks, each location block includes a plurality of storage fields, and each storage field records a primary Hash value corresponding to the data block; performing a first Hash procedure on a primary Hash value of the data block and calculating a block number; performing a second Hash procedure on the primary Hash value in the same data block and calculating a field number; loading a location conflict list; comparing the field number with the field number in the location conflict list to search whether the same field number is stored in the location conflict list; writing the primary Hash value into the corresponding block number and the field number if the field number does not exist in the location conflict list.
    • 用于创建数据块的索引的方法可应用于重复数据删除过程中,包括加载索引文件,索引文件包括多个位置块,每个位置块包括多个存储字段,并且每个存储字段记录 对应于数据块的主哈希值; 对数据块的主哈希值执行第一哈希过程并计算块号; 对相同数据块中的主哈希值执行第二哈希过程,并计算一个字段号; 加载位置冲突列表; 将字段号与位置冲突列表中的字段号进行比较,以搜索位置冲突列表中是否存储相同的字段号; 如果字段号不存在于位置冲突列表中,则将主哈希值写入相应的块号和字段号。