Patent ID: 9053107
Filing Date: 2015-06-09
Classification: G06F

Abstract:
1. A machine-implemented method, the method comprising: determining an updated set of files that have been modified in a file system update in order to update an old file system image, wherein the updated set of files updates a corresponding old set of files in the old file system image; determining whether an old set of metadata associated with the old set of files is modified based on the updated set of files; generating a set of updated files based on a binary difference of the updated set of files and the old set of files, wherein the set of updated files comprises blocks deallocated into free space; generating an updated set of metadata for the updated set of files based on a binary difference between a new set of metadata and the old set of metadata, wherein the updated set of metadata includes the binary difference between location information of the updated set of files and location information of the old set of files, wherein the location information of the updated set of files and the location information of the old set of files comprise respective block indexes at a block level of a plurality of blocks on a storage device; transmitting the set of updated files and the free space over a network to a target system.