Patent ID: 9152507
Filing Date: 2015-10-06
Classification: G06F

Abstract:
1. A method of pruning unwanted file content from an image backup, the method comprising: identifying files to be excluded from a base image backup of a source storage; identifying a set of allocated blocks in the source storage at a first point in time by accessing a file system block allocation map (FSBAM) of file system metadata (FSM) of a file system of the source storage, the FSBAM indicating, as being allocated, block positions that are allocated in the source storage; pruning the set of allocated blocks to exclude the allocated blocks that correspond to content of the files to be excluded; backing up the pruned set of allocated blocks, and not backing up the excluded allocated blocks, in the base image backup; and restoring the base image backup to a restore storage, the restoring including pruning FSM of a file system of the restore storage to modify metadata associated with the files to be excluded prior to exposing the file system to any user such that the files to be excluded are no longer listed as existing within the FSM of the file system of the restore storage.