Quest Software Assigned Three Patents

Fixed size extents for variable size deduplication segments
Quest Software, Inc., Aliso Viejo, CA, has been assigned a patent (10,552,040) developed by Rao, Goutham, Los Altos, CA, and Jayaraman, Vinod, San Francisco, CA, for “fixed size extents for variable size deduplication segments.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Mechanisms are provided for maintaining variable size deduplication segments using fixed size extents. Variable size segments are identified and maintained in a datastore suitcase. Duplicate segments need not be maintained redundantly but can be managed by updating reference counts associated with the segments in the datastore suitcase. Segments are maintained using fixed size extents. A minor increase in storage overhead removes the need for inefficient recompaction when a segment is removed from the datastore suitcase. Fixed size extents can be reallocated for storage of new segments.”

The patent application was filed on September 5, 2017 (15/695,979).

Client-side deduplication with local chunk caching
Quest Software, Inc., Aliso Viejo, CA, has been assigned a patent (10,459,886) developed by Tripathy, Tarun K., Newark, CA, Smith, Brian R., San Ramon, CA, and Dinkar, Abhijit S., San Jose, CA, for a “client-side deduplication with local chunk caching.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Techniques and mechanisms described herein facilitate the transmission of a data stream from a client device to a networked storage system. According to various embodiments, a fingerprint for a data chunk may be identified by applying a hash function to the data chunk via a processor. The data chunk may be determined by parsing a data stream at the client device. A determination may be made as to whether the data chunk is stored in a chunk file repository at the client device. A block map update request message including information for updating a block map may be transmitted to a networked storage system via a network. The block map may identify a designated memory location at which the chunk is stored at the networked storage system.”

The patent application was filed on August 6, 2014 (14/453,158).

Leveraging continuous replication to copy snapshot backup image
Quest Software, Inc., Aliso Viejo, CA, has been assigned a patent (10,452,286) developed by Thiam, Alioune, Hugo, MN, for a “leveraging continuous replication to copy snapshot backup image.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Systems, methods and devices provide efficient data protection by creating backup images of snapshots using the replication capabilities of the data protection system. The snapshots are point-in-time representation of a data set, where the snapshots allows recoverable states of the data set without having to make a complete copy. A snapshot to be backed up is stored in a primary volume. A virtual volume is created, the virtual volume comprising references, such as pointers, to the snapshot data stored in the primary volume. The snapshot data referenced by the virtual volume is then replicated using the replication capabilities of the data protection system. In this manner, the replication of the snapshot does not burden the primary volume that is hosting the snapshot storage.”

The patent application was filed on February 17, 2016 (15/045,545).