Patent ID: 9020903
Filing Date: 2015-04-28
Classification: G06F

Abstract:
1. A computer-implemented method for use in recovering duplicate blocks in file systems, the method comprising: detecting an invalid duplicate block scenario by comparing a logical offset of a file system block with a logical offset of the file system block included in metadata of the file system block, wherein the invalid duplicate block scenario indicates at least two references to the file system block in a file system by at least two inodes of the file systems, wherein the at least two inodes includes first and second inodes, wherein the file system block is referred to by the first inode associated with a first file of the file system at a first logical offset within the first file and the second inode associated with a second file of the file system at a second logical offset within the second file, wherein the first and second logical offsets are different if the first file is a snapshot copy of the second file;