Riverbed Assigned Patent

Riverbed Technology, Inc., San Francisco, CA, has been assigned a patent (8,850,161) developed by four co-inventors for a “method of improving performance of a storage device.”

The co-inventors are Robert Punkunus, Berlin, CT, Kallol Mandal, Sumanth Sukumar, San Francisco, CA, and Nitin Jain, San Jose, CA.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Methods are provided for efficiently storing data to a data storage device or subsystem. The data storage device may be a SSD, and may be implemented as part of a RAID or other subsystem. When existing data is read and updated, and must be re-stored, the data is assembled and stored as if it were new data, and is written in a sequential manner, instead of being written to the same storage location. A newer generation number distinguishes it from the previous version. If the storage subsystem employs data striping, stripe size may be matched with the size of a logical collection of data (e.g., an extent), so that each such logical collection of data is wholly stored on just device in the storage subsystem. Concurrent device access may be supported by concurrently writing substripes of data to each device/extent.”

The patent application was filed on Oct. 13, 2010 (12/903,975).