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1. 发明申请

US20100042790A1 SCALABLE DEDUPLICATION OF STORED DATA 有权
标题翻译：存储数据的可分级重复
公开(公告)号：US20100042790A1
公开(公告)日：2010-02-18
申请号：US12190511
申请日：2008-08-12
申请人： Shishir Mondal , Praveen Killamshetti
发明人： Shishir Mondal , Praveen Killamshetti
IPC分类号： G06F12/00 , G06F15/167 , G06F12/16
CPC分类号： G06F3/0641 , G06F3/0608 , G06F3/061 , G06F3/0689 , G06F11/1453
摘要： In a method and apparatus for scalable deduplication, a data set is partitioned into multiple logical partitions, where each partition can be deduplicated independently. Each data block of the data set is assigned to exactly one partition, so that any two or more data blocks that are duplicates of each are always be assigned to the same logical partition. A hash algorithm generates a fingerprint of each data block in the volume, and the fingerprints are subsequently used to detect possible duplicate data blocks as part of deduplication. In addition, the fingerprints are used to ensure that duplicate data blocks are sent to the same logical partition, prior to deduplication. A portion of the fingerprint of each data block is used as a partition identifier to determine the partition to which the data block should be assigned. Once blocks are assigned to partitions, deduplication can be done on partitions independently.
摘要翻译：在用于可重复数据删除的方法和装置中，数据集被划分为多个逻辑分区，其中每个分区可以独立地去重复数据删除。数据集的每个数据块被分配给正好一个分区，使得每个数据块的每个数据块总是被分配给相同的逻辑分区。哈希算法生成卷中每个数据块的指纹，并且指纹随后用于检测可能的重复数据块作为重复数据删除的一部分。此外，在重复数据删除之前，使用指纹来确保将重复的数据块发送到同一个逻辑分区。将每个数据块的指纹的一部分用作分区标识符来确定应该分配数据块的分区。一旦块分配给分区，重复数据删除就可以在分区上独立完成。

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