Patent ID: 8904125
Filing Date: 2014-12-02
Classification: G06F

Abstract:
1. A computer-implemented method for creating reference-based synthetic backups, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: storing metadata associated with a first backup and a second backup in a backup system catalog; deduplicating the first backup to create a first deduplicated data object that comprises a first set of fingerprints that identify deduplicated data segments of the first backup stored within a deduplication system, the first backup representing at least a portion of a data set at a first time; using the backup system catalog to identify data units that did not change between the first time and a second time; for each data unit that did not change between the first time and the second time, copying a corresponding fingerprint from the first set of fingerprints to a synthetic backup data object; deduplicating the second backup to create a second deduplicated data object that comprises a second set of fingerprints that identify deduplicated data segments of the second backup stored within the deduplication system, the second backup representing changes made to the data set between the first time and the second time; creating a synthetic backup that represents at least a portion of the data set at the second time by: