Patents by Inventor David Ngo

David Ngo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8195623
    Abstract: The system and method are used for tracking a plurality of snapshots of an information store. The system performs a first snapshot of an information store that indexes the contents of the information store, copying the contents of the information store to a first storage device, using the first snapshot, and updating a replication volume table indicating the storage of the contents of the first information store using the first snapshot on the first storage device. A second snapshot is performed of the information store that indexes the contents of the information store, the contents of the information store are copied to a second storage device using the second snapshot and the replication volume table is updated to indicate the storage of the contents of the first information store using the second snapshot on the second storage device.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: June 5, 2012
    Assignee: Commvault Systems, Inc.
    Inventors: Anand Prahlad, David Ngo, Prakash Varadharajan, Rahul Pawar, Avinash Kumar
  • Patent number: 8190565
    Abstract: The present invention relates to a method for performing an image level copy of an information store. The present invention comprises performing a snapshot of an information store that indexes the contents of the information store, retrieving data associated with the contents of the information store from a file allocation table, copying the contents of the information store to a storage device based on the snapshot, and associating the retrieved data with the copied contents to provide file system information for the copied contents.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: May 29, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, David Ngo, Prakash Varadharajan, Rahual Pawar, Avinash Kumar
  • Patent number: 8176268
    Abstract: Methods and systems are described for performing storage operations on electronic data in a network. In response to the initiation of a storage operation and according to a first set of selection logic, a media management component is selected to manage the storage operation. In response to the initiation of a storage operation and according to a second set of selection logic, a network storage device to associate with the storage operation. The selected media management component and the selected network storage device perform the storage operation on the electronic data.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: May 8, 2012
    Assignee: Comm Vault Systems, Inc.
    Inventors: Rajiv Kottomtharayil, Parag Gokhale, Anand Prahlad, Manoj Kumar, David Ngo, Varghese Devassy
  • Patent number: 8170995
    Abstract: A method and system for creating an index of content without interfering with the source of the content includes an offline content indexing system that creates an index of content from an offline copy of data. The system may associate additional properties or tags with data that are not part of traditional indexing of content, such as the time the content was last available or user attributes associated with the content. Users can search the created index to locate content that is no longer available or based on the associate attributes.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: May 1, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller, Parag Gokhale, Rajiv Kottomtharayil
  • Patent number: 8140794
    Abstract: A system and method of managing stored data in a storage management system. The storage management system includes a storage manager, a media agent connected to the storage manager, and a primary volume connected to the media agent. A plurality of snapshots are taken of the primary volume. The snapshots are indexed by associating respective information with the snapshot. The indexed snapshots are copied to a recovery volume. In this way, browsing features are enabled for the user. The user may view the snapshots in a hierarchical format, and may even view snapshot data in association with the corresponding application. The resultant recovery volume may be used to replace a primary volume.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: March 20, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Andreas May, Norman R. Lunde, Lixin Zhou, Avinash Kumar, David Ngo
  • Patent number: 8131725
    Abstract: Systems and methods for managing electronic data are disclosed. Various data management operations can be performed based on a metabase formed from metadata. Such metadata can be identified from an index of data interactions generated by a journaling module, and obtained from their associated data objects stored in one or more storage devices. In various embodiments, such processing of the index and storing of the metadata can facilitate, for example, enhanced data management operations, enhanced data identification operations, enhanced storage operations, data classification for organizing and storing the metadata, cataloging of metadata for the stored metadata, and/or user interfaces for managing data. In various embodiments, the metabase can be configured in different ways. For example, the metabase can be stored separately from the data objects so as to allow obtaining of information about the data objects without accessing the data objects or a data structure used by a file system.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: March 6, 2012
    Assignee: Comm Vault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy Alan Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Patent number: 8131680
    Abstract: Systems and methods for managing electronic data are disclosed. Various data management operations can be performed based on a metabase formed from metadata. Such metadata can be identified from an index of data interactions generated by a journaling module, and obtained from their associated data objects stored in one or more storage devices. In various embodiments, such processing of the index and storing of the metadata can facilitate, for example, enhanced data management operations, enhanced data identification operations, enhanced storage operations, data classification for organizing and storing the metadata, cataloging of metadata for the stored metadata, and/or user interfaces for managing data. In various embodiments, the metabase can be configured in different ways. For example, the metabase can be stored separately from the data objects so as to allow obtaining of information about the data objects without accessing the data objects or a data structure used by a file system.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: March 6, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy Alan Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Patent number: 8121983
    Abstract: Performing data management operations on replicated data in a computer network. Log entries are generated for data management operations of an application executing on a source system. Consistency point entries are used to indicate a time of a known good, or recoverable, state of the application. A destination system is configured to process a copy of the log and consistency point entries to replicate data in a replication volume, the replicated data being a copy of the application data on the source system. When the replicated data represents a known good state of the application, as determined by the consistency point entries, the destination system(s) may perform a storage operation (e.g., snapshot, backup) to copy the replicated data and to logically associate the copied data with a time information (e.g., time stamp) indicative of the source system time when the application was in the known good state.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 21, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, David Ngo
  • Publication number: 20120041793
    Abstract: Systems and methods for defining, booking and managing activities or services by a user of digital computer implemented applications and interactive displays based on time, location and theme as related to the user's local environment.
    Type: Application
    Filed: February 15, 2011
    Publication date: February 16, 2012
    Inventors: Robert Joseph Farina, Jonathan Lester Simon, Alexander L. Voltz, David Ngo
  • Publication number: 20120030432
    Abstract: A computerized method for sharing removable storage media in a network, the method comprising associating, in an index entry, a first piece of removable storage media in a first storage device with at least a first storage policy copy and a second storage policy copy; copying, to the first piece of removable storage media, data associated with the first storage policy copy; and copying, to the first piece of removable storage media, data associated with the second storage policy copy.
    Type: Application
    Filed: October 3, 2011
    Publication date: February 2, 2012
    Applicant: CommVault Systems, Inc.
    Inventors: Rajiv Kottomtharayil, Parag Gokhale, Anand Prahlad, Manoj Kumar Vijayan Retnamma, David Ngo, Varghese Devassy
  • Publication number: 20110276664
    Abstract: Systems and methods for data classification to facilitate and improve data management within an enterprise are described. The disclosed systems and methods evaluate and define data management operations based on data characteristics rather than data location, among other things. Also provided are methods for generating a data structure of metadata that describes system data and storage operations. This data structure may be consulted to determine changes in system data rather than scanning the data files themselves.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 10, 2011
    Applicant: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Patent number: 8051095
    Abstract: Systems and methods for data classification to facilitate and improve data management within an enterprise are described. The disclosed systems and methods evaluate and define data management operations based on data characteristics rather than data location, among other things. Also provided are methods for generating a data structure of metadata that describes system data and storage operations. This data structure may be consulted to determine changes in system data rather than scanning the data files themselves.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 1, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Publication number: 20110264620
    Abstract: The present invention relates to a method for performing integrated storage operations on an information store. The present invention comprises identifying a plurality disparate types of storage operations stored in a policy option table. A first storage operation is performed according to a first set of storage criteria stored in the policy option table and a second operation, disparate from the first storage operation, is performed according to a second set of storage criteria stored in the policy option table.
    Type: Application
    Filed: July 8, 2011
    Publication date: October 27, 2011
    Applicant: CommVault Systems, Inc.
    Inventors: Anand PRAHLAD, David NGO, Lixin ZHOU, Andreas MAY
  • Patent number: 8032718
    Abstract: A computerized method for sharing removable storage media in a network, the method comprising associating, in an index entry, a first piece of removable storage media in a first storage device with at least a first storage policy copy and a second storage policy copy; copying, to the first piece of removable storage media, data associated with the first storage policy copy; and copying, to the first piece of removable storage media, data associated with the second storage policy copy.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: October 4, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Rajiv Kottomtharayil, Parag Gokhale, Anand Prahlad, Manoj Kumar Vijayan Retnamma, David Ngo, Varghese Devassy
  • Patent number: 8010769
    Abstract: Systems and methods for data classification to facilitate and improve data management within an enterprise are described. The disclosed systems and methods evaluate and define data management operations based on data characteristics rather than data location, among other things. Also provided are methods for generating a data structure of metadata that describes system data and storage operations. This data structure may be consulted to determine changes in system data rather than scanning the data files themselves.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: August 30, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Publication number: 20110178986
    Abstract: Systems and methods for data classification to facilitate and improve data management within an enterprise are described. The disclosed systems and methods evaluate and define data management operations based on data characteristics rather than data location, among other things. Also provided are methods for generating a data structure of metadata that describes system data and storage operations. This data structure may be consulted to determine changes in system data rather than scanning the data files themselves.
    Type: Application
    Filed: March 31, 2011
    Publication date: July 21, 2011
    Applicant: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Patent number: 7979389
    Abstract: The present invention relates to a method for performing integrated storage operations on an information store. The present invention comprises identifying a plurality disparate types of storage operations stored in a policy option table. A first storage operation is performed according to a first set of storage criteria stored in the policy option table and a second operation, disparate from the first storage operation, is performed according to a second set of storage criteria stored in the policy option table.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: July 12, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, David Ngo, Lixin Zhou, Andreas May
  • Publication number: 20110161295
    Abstract: This application describes techniques for creating a second snapshot of a first snapshot of a set of data, modifying the first snapshot, and reverting the modifications to the first snapshot. For example, portions of one or more transaction logs may be played into a database to put the database in a particular state a particular point in time. The second snapshot may then be used to revert to a prior state of the database such that additional transaction logs may be played into the database. These techniques enable the ability to put the database into multiple states as the database existed at multiple points in time. Therefore, data can be recovered from the database as the data existed at different points in time. Moreover, individual data objects in the database can be accessed and analyzed as the individual data objects existed at different points in time.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 30, 2011
    Inventor: David Ngo
  • Publication number: 20110131187
    Abstract: A system and method of managing stored data in a storage management system. The storage management system includes a storage manager, a media agent connected to the storage manager, and a primary volume connected to the media agent. A plurality of snapshots are taken of the primary volume. The snapshots are indexed by associating respective information with the snapshot. The indexed snapshots are copied to a recovery volume. In this way, browsing features are enabled for the user. The user may view the snapshots in a hierarchical format, and may even view snapshot data in association with the corresponding application. The resultant recovery volume may be used to replace a primary volume.
    Type: Application
    Filed: January 18, 2011
    Publication date: June 2, 2011
    Applicant: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Andreas May, Norman R. Lunde, Lixin Zhou, Avinash Kumar, David Ngo
  • Patent number: 7937393
    Abstract: Systems and methods for data classification to facilitate and improve data management within an enterprise are described. The disclosed systems and methods evaluate and define data management operations based on data characteristics rather than data location, among other things. Also provided are methods for generating a data structure of metadata that describes system data and storage operations. This data structure may be consulted to determine changes in system data rather than scanning the data files themselves.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: May 3, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy A. Schwartz, David Ngo, Brian Brockway, Marcus S. Muller