Patents by Inventor Jun H. Ahn

Jun H. Ahn 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).

  • Publication number: 20180285215
    Abstract: Systems and method that restore application data stored by a virtual machine database for an application (e.g., SQL, Sharepoint, Exchange, and so on) running on the virtual machine are described. The systems and methods create an integrated snapshot of the application data stored in the virtual machine database, by creating a secondary copy of the application data stored in the virtual machine database, performing, via a virtual server agent (VSA), a software snapshot of the virtual machine, and performing, via the virtual server agent, a hardware snapshot of the software snapshot of the virtual machine.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Inventors: Waqas Ashraf, Sudha Krishnan Iyer, Jun H. Ahn, Rahul S. Pawar
  • Publication number: 20180255136
    Abstract: A method and system for identifying changes to a data set, such as data within a mailbox, and performing actions based on the identified changes is discussed. In some examples, the system receives an indication of a change to a mailbox, creates a change journal entry for the change, and identifies data to be copied via the change journal entry. In some examples, the system leverages the change journal to associate messages with changes to a mailbox.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Jun H. Ahn, David Ngo
  • Patent number: 9967338
    Abstract: A method and system for identifying changes to a data set, such as data within a mailbox, and performing actions based on the identified changes is discussed. In some examples, the system receives an indication of a change to a mailbox, creates a change journal entry for the change, and identifies data to be copied via the change journal entry. In some examples, the system leverages the change journal to associate messages with changes to a mailbox.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: May 8, 2018
    Assignee: Commvault Systems, Inc.
    Inventors: Jun H. Ahn, David Ngo
  • Patent number: 9959333
    Abstract: A method and system for providing unified access to data for multiple computing devices includes a system that associates multiple computing devices with a user of an information management system, assigns information management policies to data from the multiple computing devices within the information management system, and collects multiple data objects from the multiple computers. The system may generate a preview version of each collected data object, and provide at least one preview version of a collected data object to a computing device associated with the user. The system may also generate indexing information for each collected data object and distribute the indexing information with the preview version of the data object.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 1, 2018
    Assignee: Commvault Systems, Inc.
    Inventors: Paramasivam Kumarasamy, Anand Vibhor, Jun H. Ahn
  • Publication number: 20180113769
    Abstract: A information management system allows a user to search through a secondary copy of data, such as a back up, archive, or snapshot without first retrieving the secondary copy of data. Instead, the system constructs lightweight data that can be displayed to a user as a representation of the search results. Lightweight data may include metadata or other information that identifies data included in the secondary copy of data. The lightweight data may be perceived as being the secondary copy of data and allow a user to browse through search results. Once the user identifies a search result that is of interest, information in the lightweight data can be used to retrieve the secondary copy of data. Because lightweight data may have a smaller file size than the file size of the secondary copy of data, the latency of performing a search may be reduced.
    Type: Application
    Filed: August 31, 2017
    Publication date: April 26, 2018
    Inventors: Jun H. Ahn, Manas Bhikchand Mutha, Chitra Ramaswamy
  • Publication number: 20180088825
    Abstract: Systems and methods for storage pruning can enable users to delete, edit, or copy backed up data that matches a pattern. Storage pruning can enable fine-grain deletion or copying of these files from backups stored in secondary storage devices. Systems and methods can also enable editing of metadata associated with backups so that when the backups are restored or browsed, the logical edits to the metadata can then be performed physically on the data to create a custom restore or a custom view. A user may perform operations such as renaming, deleting, modifying flags, and modifying retention policies on backed up items. Although the underlying data in the backup may not change, the view of the backup data when the user browses the backup data can appear to include the user's changes. A restore of the data can cause those changes to be performed on the backup data.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 29, 2018
    Inventors: Manas Bhikchand MUTHA, Jun H. AHN
  • Publication number: 20180081887
    Abstract: An information management system according certain aspects for archiving file system content may include a third-party application archiving data agent configured to: access third-party application archiving rules for archiving data to one or more secondary storage devices, wherein the third-party application archiving rules are defined by a third-party application to archive files associated with the third-party application; access third-party metadata associated with a plurality of files in a file system, wherein the plurality of files is associated with the third-party application and the third-party metadata is defined by the third-party application; determine whether to archive one or more files of the plurality of files based at least in part on the third-party application archiving rules and the third-party metadata; and in response to determining that a first file of the plurality of files should be archived, archive the first file to the one or more secondary storage devices.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 22, 2018
    Inventors: Jun H. AHN, Waqas ASHRAF, Arun Kumar KRISHNA SHANKAR
  • Patent number: 9912625
    Abstract: A system according to certain aspects improves the process of sending emails containing attachments. The system can detect a request to send an email containing attachments to one or more recipients, create a copy of the attachments on a network storage device, replace the attachments contained in the email with links to the copies of the attachments, and send the email containing the links to the one or more recipients.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: March 6, 2018
    Assignee: Commvault Systems, Inc.
    Inventors: Manas Bhikchand Mutha, Prosenjit Sinha, Jun H. Ahn
  • Publication number: 20180024892
    Abstract: Systems and methods are disclosed for cross-system user-level management of data objects stored in one or more information management systems, and for user-level management of data storage quotas in information management systems, including data objects in secondary storage. An illustrative quota manager is associated with one or more information management systems. The quota manager comprises a quota value representing the maximum amount of data storage allowed for a given end-user's primary and secondary data in the one or more information management systems. The quota manager determines whether data associated with the end-user has exceeded the storage quota, and if so, prompts the end-user to select data for deletion, the deletion to be implemented globally, across the primary and secondary storage subsystems of the respective one or more information management systems. Meanwhile, so long as the quota is exceeded, the quota manager instructs storage managers to block backups of end-user's data.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 25, 2018
    Inventors: Manas Bhikchand Mutha, Pavan Kumar Reddy Bedadala, Jun H. Ahn, Pavlo Mazur, Jatin Kirtikumar Sanghvi
  • Patent number: 9848046
    Abstract: According to certain aspects, an information management system can include a client computing device residing in a primary storage subsystem configured to: identify a first application to archive to one or more secondary storage devices residing in a secondary storage subsystem, the first application being one of a plurality of applications installed on the client computing device; identify first data associated with the first application, the first data stored in the one or more primary storage devices associated with the client computing device; forward an executable instance of the first application and the first data to a first secondary storage controller computer to copy the executable instance of the first application and the first data to the one or more secondary storage devices; and delete the first application from the one or more primary storage devices.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: December 19, 2017
    Assignee: Commvault Systems, Inc.
    Inventors: Bhavyan Bharatkumar Mehta, Rajiv Kottomtharayil, Tirthankar Chatterjee, Jun H. Ahn
  • Patent number: 9823978
    Abstract: Systems and methods are disclosed for cross-system user-level management of data objects stored in one or more information management systems, and for user-level management of data storage quotas in information management systems, including data objects in secondary storage. An illustrative quota manager is associated with one or more information management systems. The quota manager comprises a quota value representing the maximum amount of data storage allowed for a given end-user's primary and secondary data in the one or more information management systems. The quota manager determines whether data associated with the end-user has exceeded the storage quota, and if so, prompts the end-user to select data for deletion, the deletion to be implemented globally, across the primary and secondary storage subsystems of the respective one or more information management systems. Meanwhile, so long as the quota is exceeded, the quota manager instructs storage managers to block backups of end-user's data.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: November 21, 2017
    Assignee: Commvault Systems, Inc.
    Inventors: Manas Bhikchand Mutha, Pavan Kumar Reddy Bedadala, Jun H. Ahn, Pavlo Mazur, Jatin Kirtikumar Sanghvi
  • Publication number: 20170300390
    Abstract: A system according to certain aspects may include a client computing device including: a database application configured to output a database file in a primary storage device(s), the database application outputting the database file as a series of application-level blocks; and a data agent configured to divide the database file into a plurality of first blocks having a first granularity larger than a second granularity of the application-level blocks such that each of the first blocks spans a plurality of the application-level blocks. The system may include a secondary storage controller computer(s) configured to: in response to instructions to create a secondary copy of the database file: copy the plurality of first blocks to a secondary storage device(s) to create a secondary copy of the database file; and create a table that provides a mapping between the copied plurality of first blocks and corresponding locations on the secondary storage device(s).
    Type: Application
    Filed: March 29, 2017
    Publication date: October 19, 2017
    Inventors: Henry Wallace Dornemann, Rahul S. Pawar, Jun H. Ahn
  • Patent number: 9753812
    Abstract: An information management system according certain aspects may be configured to generate a snapshot of data relating to a plurality of applications. The system may include first and second data agents associated with first and second applications, respectively. The system may also include a snapshot manager configured to: in response to receiving notifications from the first and second data agents that the first and second applications are in consistent states: obtain a snapshot of the logical volume including data generated by the first and second applications; generate mapping information between the first application and a portion of the snapshot relating to the first application based at least in part on metadata obtained by the first data agent; and generate mapping information between the second application and a portion of the snapshot relating to the second application based at least in part on metadata obtained by the second data agent.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 5, 2017
    Assignee: CommVault Systems, Inc.
    Inventors: Rahul S. Pawar, Jun H. Ahn, Manas Bhikchand Mutha, Henry Wallace Dornemann, Anup Kumar
  • Publication number: 20170228387
    Abstract: Aspects of this disclosure relate to protecting email data. For example, email protection rules can instruct an email server to route an email to an email protection module. The one or more email rules can identify a group of one or more email addresses. The email protection module can receive an email from the email server that has an email address of the group as an intended receipt. The email protection module can route the email to secondary storage and store the email in secondary storage to create a secondary copy of the email. The secondary copy can be stored inline to persistent memory of secondary storage, according to certain embodiments. Access to the backup copy of the email stored to the persistent memory can be controlled, for example, based on whether a user had permission to access to the email when the email was sent.
    Type: Application
    Filed: March 16, 2017
    Publication date: August 10, 2017
    Inventors: Jun H. AHN, Sesha N. KRISHNAN, Yan LIU
  • Publication number: 20170206144
    Abstract: Rather than relying on pre-defined scheduling of secondary copy operations such as backup jobs, the illustrative opportunistic approach initiates secondary copy operations based on changing operational conditions in a storage management system. An adaptive backup readiness score is based on a number of backup-readiness operational factors. An illustrative enhanced data agent which is associated with the target database application (or other executable component) may monitor the operational factors and determine the backup readiness score based on weights assigned to the respective operational factors. The enhanced data agent may evaluate recent backup jobs to determine which of the operational factors that contributed to the backup readiness score may have been most relevant.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Jun H. AHN, Waqas ASHRAF, Anup KUMAR, Brahmaiah VALLABHANENI
  • Publication number: 20170206142
    Abstract: An information management system according to certain aspects may be configured to generate a snapshot of data relating to a plurality of applications. The system may include a plurality of data agents, wherein each data agent is associated with at least one of a plurality of applications, and data generated by the plurality of applications is stored in a logical volume in primary storage. The system may also include a snapshot manager configured to detect the plurality of applications; check with the plurality of data agents whether the associated applications are in consistent states; obtain a snapshot of the logical volume in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states; and generate mapping information between a particular one of the plurality of applications and a portion of the snapshot relating to the particular one of the plurality of applications.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Rahul S. PAWAR, Jun H. AHN, Manas Bhikchand MUTHA, Henry Wallace DORNEMANN, Anup KUMAR
  • Patent number: 9645891
    Abstract: Rather than relying on pre-defined scheduling of secondary copy operations such as backup jobs, the illustrative opportunistic approach initiates secondary copy operations based on changing operational conditions in a storage management system. An adaptive backup readiness score is based on a number of backup-readiness operational factors. An illustrative enhanced data agent which is associated with the target database application (or other executable component) may monitor the operational factors and determine the backup readiness score based on weights assigned to the respective operational factors. The enhanced data agent may evaluate recent backup jobs to determine which of the operational factors that contributed to the backup readiness score may have been most relevant.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 9, 2017
    Assignee: COMMVAULT SYSTEMS, INC.
    Inventors: Jun H. Ahn, Waqas Ashraf, Anup Kumar, Brahmaiah Vallabhaneni
  • Patent number: 9639426
    Abstract: An information management system according to certain aspects may be configured to generate a snapshot of data relating to a plurality of applications. The system may include a plurality of data agents, wherein each data agent is associated with at least one of a plurality of applications, and data generated by the plurality of applications is stored in a logical volume in primary storage. The system may also include a snapshot manager configured to detect the plurality of applications; check with the plurality of data agents whether the associated applications are in consistent states; obtain a snapshot of the logical volume in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states; and generate mapping information between a particular one of the plurality of applications and a portion of the snapshot relating to the particular one of the plurality of applications.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: May 2, 2017
    Assignee: Commvault Systems, Inc.
    Inventors: Rahul S. Pawar, Jun H. Ahn, Manas Bhikchand Mutha, Henry Wallace Dornemann, Anup Kumar
  • Patent number: 9633026
    Abstract: Aspects of this disclosure relate to protecting email data. For example, email protection rules can instruct an email server to route an email to an email protection module. The one or more email rules can identify a group of one or more email addresses. The email protection module can receive an email from the email server that has an email address of the group as an intended receipt. The email protection module can route the email to secondary storage and store the email in secondary storage to create a secondary copy of the email. The secondary copy can be stored inline to persistent memory of secondary storage, according to certain embodiments. Access to the backup copy of the email stored to the persistent memory can be controlled, for example, based on whether a user had permission to access to the email when the email was sent.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 25, 2017
    Assignee: COMMVAULT SYSTEMS, INC.
    Inventors: Jun H. Ahn, Sesha N. Krishnan, Yan Liu
  • Patent number: 9632874
    Abstract: An information management system according to certain aspects may be configured to generate a snapshot of data relating to a plurality of applications. Data generated by the plurality of applications may be stored in a logical volume in primary storage. The system may include a plurality of data agents including a database data agent associated with a database application that can be configured to back up one or more log files of a database log separately from data of the database application. The system may also include a snapshot manager configured to: in response to receiving notifications from the plurality of data agents that the associated applications are in consistent states, obtain a snapshot of the logical volume; generate mapping information between a particular application of the plurality of applications and a portion of the snapshot relating to the particular application; and truncate the database log of the database application.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Commvault Systems, Inc.
    Inventors: Rahul S. Pawar, Jun H. Ahn, Manas Bhikchand Mutha, Henry Wallace Dornemann, Anup Kumar