Patent ID: 9607000
Date: 2017-03-28
CPC Classifications: G06F

Claim:
1. A method of backing up data, comprising: backing up, using a processor, a backup data set to a first backup data storage, the backup data set containing multiple save sets of backup data for a plurality of client devices, each save set of backup data being associated with a single client device and containing files or file systems of the client device; storing the backup data set in a native file format in a first storage area of the first backup data storage as a first backup copy; generating a data stream file from the backup data set stored in the first storage area where the backup data set is in the native file format and the data stream file is in a data stream file format, the data stream file being a logical copy of the backup data set containing only logical references to data files of the backup data set, without duplicating the content of the backup data set and including a plurality of header portions containing metadata and a plurality of associated payload portions containing logical references to data files of the backup data set, the payload portions stitching data files from one or more save sets of backup data, the metadata stored in each header containing information of a file structure and an organization of the files and file systems in the save sets of backup data being stored in each associated payload portion; storing the data stream file in a second storage area of the first backup data storage, the data stream file containing logical references to all of the files in the backup data set in the first storage area; and replicating, using the data stream file, the backup data set onto a second backup data storage as a second backup copy.