公开(公告)号：US20150254268A1

公开(公告)日：2015-09-10

申请号：US14686426

申请日：2015-04-14

Applicant: NetApp, Inc.

Inventor： Alok Sharma ,  Sunil Walwaiker ,  Vaijayanti Bharadwaj

IPC: G06F17/30

CPC classification number: G06F16/1748 ,  G06F16/2272 ,  G06F16/951

Abstract: The techniques introduced here provide for enabling deduplication operations for a file system without significantly affecting read performance of the file system due to fragmentation of the data sets in the file system. The techniques include determining, by a storage server that hosts the file system, a level of fragmentation that would be introduced to a data set stored in the file system as a result of performing a deduplication operation on the data set. The storage server then compares the level of fragmentation with a threshold value and determines whether to perform the deduplication operation based on a result of comparing the level of fragmentation with the threshold value. The threshold value represents an acceptable level of fragmentation in the data sets of the file system.

Abstract translation: 这里介绍的技术提供了对文件系统进行重复数据删除操作，而不会由于文件系统中的数据集的碎片而显着影响文件系统的读取性能。 这些技术包括由承载文件系统的存储服务器确定作为对该数据集执行重复数据删除操作的结果，该层级将被引入存储在文件系统中的数据集。 然后，存储服务器将分段级别与阈值进行比较，并且基于将分段级别与阈值进行比较的结果来确定是否执行重复数据消除操作。 阈值表示文件系统的数据集中可接受的碎片级别。