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Nutanix Assigned Two Patents

DR across heterogeneous storage, implementing performance tier de-due in virtualization environment

Disaster recovery across heterogeneous storage
Nutanix, Inc., San Jose, CA, has been assigned a patent (10,120,764) developed by Ramachandran, Parthasarathy, Palo Alto, CA, Bhattacharyya, Manosiz, San Jose, CA, and Chandrasekaran, Karthik, Bangalore, India, for an “efficient disaster recovery across heterogeneous storage systems.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Systems for storage system rollover and rollback. A data mover agent is installed on a source storage system to capture disaster recovery data and send to a target system. Upon receiving a rollover event signal, a virtualized controller creates one or more replica user virtual machines running on the target system that serve to replicate functions of the user virtual machines from the source storage system. The virtualized controller on the target system converts the target disaster recovery data from a first format to a second format to facilitate use of the target disaster recovery data by the replica user virtual machines. Rollback is initiated when the target system receives a rollback event signal. Differences in the data that have occurred between the rollover event and the rollback signal are calculated and sent to the rollback system. The calculated differences are applied to a registered snapshot on the rollback system.

The patent application was filed on July 29, 2016 (15/224,206).

Implementing performance tier de-duplication in virtualization environment
Nutanix, Inc., San Jose, CA, has been assigned a patent (
10,120,577) developed by Muthukkaruppan, Kannan, Union City, CA, and Ranganathan, Karthik, Fremont, CA, for “method and system for implementing performance tier de-duplication in a virtualization environment.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present application provides an improved approach for managing performance tier de-duplication in a virtualization environment. A content cache is implemented on high performance tiers of storage in order to maintain a working set for the user virtual machines accessing the system, and associates fingerprints with data stored therein. During write requests from the user virtual machines, fingerprints are calculated for the data to be written. However, no de-duplication is performed during the write. During read requests, fingerprints corresponding to the data to be read are retrieved and matched with the fingerprints associated with the data in the content cache. Thus, while multiple pieces of data having the same fingerprints may be written to the lower performance tiers of storage, only one of those pieces of data having that fingerprint will be stored in the content cache for fulfilling read requests.

The patent application was filed on May 13, 2016 (15/154,835).

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