Nutanix Assigned Three Patents

Implementing performance tier de-duplication in virtualization environment
Nutanix, Inc., San Jose, CA, has been assigned a patent (9,342,253) developed by Muthukkaruppan, Kannan, Union City, CA, and Ranganathan, Karthik, Fremont, CA, for a “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 August 22, 2014 (14/466,782).

Implementing distributed operations log
Nutanix, Inc., San Jose, CA, has been assigned a patent (9,336,132) developed by Aron, Mohit, Los Altos, CA, and Byrne, Brian, San Jose, CA, for a “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: ”Disclosed is an improved approach for implementing a storage system having an operation log where data writes are initially performed to a fast operation log, rather than to its permanent storage location. A distributed operation log can be employed to replicate the data to multiple locations in the storage system.“

The patent application was filed on February 6, 2012 (13/367,073).

Maintaining consistency for I/O operations on metadata distributed
amongst nodes in ring structure
Nutanix, Inc., San Jose, CA, has been assigned a patent (9,286,344) developed by Bhardwaj, Rishi, San Jose, CA, and Guturi, Venkata Ranga Radhanikanth, San Jose, CA, for a “method and system for maintaining consistency for I/O operations on metadata distributed amongst nodes in a ring structure.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A method for maintaining consistency for I/O operations on metadata distributed amongst a plurality of nodes forming a ring structure.“

The patent application was filed on December 30, 2013 (14/144,520).