CommVault Assigned Two Patents

Asynchronous methods of data classification
using change journals and other data structures
CommVault Systems, Inc., Tinton Falls, NJ, has been assigned a patent (9,047,296) developed by Pawar, Rahul S., Marlboro, NJ, for a “asynchronous methods of data classification using change journals and other data structures.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Aspects of the present invention are generally concerned with systems and methods for generating a database of metadata that describes system data and storage operations. The database of metadata may be referred to herein as a “metabase.” For example, to generate a metabase, a data agent may traverse a file system to obtain certain characteristics of data managed by the file system while substantially simultaneously detecting and recording change notifications. These actions may be performed even if the actions of the data agent are interrupted one or more times during the traversal of the file system. The data agent may process the characteristics and change notifications to generate and update a metabase. Once formed, the metabase may be consulted to determine changes in system data rather than determining the changes by scanning the data files themselves.“

The patent application was filed on May 14, 2013 (13/894,010).

Managing replicated database data in dirty and clean shutdown states
CommVault Systems, Inc., Tinton Falls, NJ, has been assigned a patent (9,047,357) developed by Ngo, David, Shrewsbury, NJ, for a “systems and methods for managing replicated database data in dirty and clean shutdown states.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Systems and methods for replicating database data in a dirty shutdown state and generating copies of the replicated data in a clean shutdown state. For example, systems can include a tracking module, (e.g., a filter driver) that monitors transactions from a database application to a source database stored on a source storage device to generate log entries having at least one marker indicating a known good state of the application. The systems further include a computer coupled to a target storage device comprising a target database and log files. The computer processes the transactions, based on the log entries, to replicate data to a target database on the target storage device, performs a first snapshot on data stored in the target database existing in a dirty shutdown state, replays into the target database data stored in the log files to put the target database in a clean shutdown state, copies the target database in the clean shutdown state, and reverts the target database back to the dirty shutdown state in which the target database existed at the time of the first snapshot.“

The patent application was filed on February 28, 2014 (14/193,945).