Server-side inline generation of virtual synthetic backups using group fingerprints

A system making backups of protected data from a backup client for storage through a storage server method making inline deduplicated backups of protected data using group fingerprints resident in a storage server, comprising:

• a storage server component generating group fingerprints for a backup client that is not capable of using group fingerprints, from individual fingerprints generated for each segment of protected data divided into variable size segments and then grouped together, wherein each fingerprint comprises a signature for a respective data segment, and maintaining the group fingerprints for files resident on the storage server;
• a comparator component of the storage server comparing respective group fingerprints for files existing on the storage server and a new file to be backed up from the backup client to determine duplicated data between the new file and existing files;
• a converter component converting the new backup file to a virtual synthetic backup during a backup time of the new;
• and
• a further storage server component automatically generating a recipe for the new file based on the comparison indicating what data in the exiting files duplicates with the new one, wherein the recipe comprises a specific sequence of steps used to generate the new backup file;
• and replaying the recipe during a replication process of a deduplicated backup system comprising a Data Domain file system (DDFS) and a Data Domain Bandwidth Optimized Open Storage Technology (DDBoost) library that links with the application to reduce bandwidth required for data ingests, and which translates application read and write request to DDBoost application program interfaces (APIs).

A computer program product, comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein, the computer-readable program code adapted to be executed by one or more processors to implement a method of making inline deduplicated backups of protected data using group fingerprints resident in a storage server, the method comprising:

• generating group fingerprints on a storage server and for a backup client that is not capable of using group fingerprints, from individual fingerprints generated for each segment of protected data divided into variable size segments and then grouped together, wherein each fingerprint comprises a signature for a respective data segment;
• maintaining the group fingerprints for files resident on the storage server, the storage server comprising a Data Domain file system (DDFS) and a Data Domain Bandwidth Optimized Open Storage Technology (DDBoost) library that links with the application to reduce bandwidth required for data ingests, and which translates application read and write request to DDBoost application program interfaces (APIs);
• comparing, in the storage server, respective group fingerprints for file's already resident on the storage server with a new backup file to be backed up from the backup client to determine duplicated data between the files;
• and
• converting the new backup file to a virtual synthetic backup during a backup time of the new file.