Patents by Inventor Iswarya Ayyappan

Iswarya Ayyappan 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: 11163653
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: November 2, 2021
    Assignee: NetApp Inc.
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra
  • Publication number: 20200073768
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 5, 2020
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra
  • Patent number: 10489254
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 26, 2019
    Assignee: NetApp Inc.
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra
  • Patent number: 9990262
    Abstract: One or more techniques and/or systems are provided for dynamic mirroring. A first storage node and the second storage node within a first storage cluster may locally mirror data between one another based upon a local failover partnership. The first storage node and a third storage node within a second storage cluster may remotely mirror data between one another based upon a primary disaster recovery partnership. If the third storage node fails, then the first storage node may remotely mirror data to a fourth storage node within the second storage cluster based upon an auxiliary disaster recovery partnership. In this way, data loss protection for the first storage node may be improved, such that the fourth storage node provide clients with access to mirrored data from the first storage node in the event the second storage node and/or the third storage node are unavailable when the first storage node fails.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: June 5, 2018
    Assignee: NetApp Inc.
    Inventors: Hrishikesh Keremane, Iswarya Ayyappan, Allen Rintoul Keeranchira Joseph, Vaiapuri Ramasubramaniam, Jitendra Pratap Singh Chauhan
  • Publication number: 20180095849
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra
  • Publication number: 20180011769
    Abstract: One or more techniques and/or systems are provided for dynamic mirroring. A first storage node and the second storage node within a first storage cluster may locally mirror data between one another based upon a local failover partnership. The first storage node and a third storage node within a second storage cluster may remotely mirror data between one another based upon a primary disaster recovery partnership. If the third storage node fails, then the first storage node may remotely mirror data to a fourth storage node within the second storage cluster based upon an auxiliary disaster recovery partnership. In this way, data loss protection for the first storage node may be improved, such that the fourth storage node provide clients with access to mirrored data from the first storage node in the event the second storage node and/or the third storage node are unavailable when the first storage node fails.
    Type: Application
    Filed: September 1, 2017
    Publication date: January 11, 2018
    Inventors: Hrishikesh Keremane, Iswarya Ayyappan, Allen Rintoul Keeranchira Joseph, Vaiapuri Ramasubramaniam, Jitendra Pratap Singh Chauhan
  • Patent number: 9842033
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: December 12, 2017
    Assignee: NetApp, Inc.
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra
  • Patent number: 9760458
    Abstract: One or more techniques and/or systems are provided for dynamic mirroring. A first storage node and the second storage node within a first storage cluster may locally mirror data between one another based upon a local failover partnership. The first storage node and a third storage node within a second storage cluster may remotely mirror data between one another based upon a primary disaster recovery partnership. If the third storage node fails, then the first storage node may remotely mirror data to a fourth storage node within the second storage cluster based upon an auxiliary disaster recovery partnership. In this way, data loss protection for the first storage node may be improved, such that the fourth storage node provide clients with access to mirrored data from the first storage node in the event the second storage node and/or the third storage node are unavailable when the first storage node fails.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: September 12, 2017
    Assignee: NetApp, Inc.
    Inventors: Hrishikesh Keremane, Iswarya Ayyappan, Allen Rintoul Keeranchira Joseph, Vaiapuri Ramasubramaniam, Jitendra Pratap Singh Chauhan
  • Publication number: 20160357648
    Abstract: One or more techniques and/or systems are provided for dynamic mirroring. A first storage node and the second storage node within a first storage cluster may locally mirror data between one another based upon a local failover partnership. The first storage node and a third storage node within a second storage cluster may remotely mirror data between one another based upon a primary disaster recovery partnership. If the third storage node fails, then the first storage node may remotely mirror data to a fourth storage node within the second storage cluster based upon an auxiliary disaster recovery partnership. In this way, data loss protection for the first storage node may be improved, such that the fourth storage node provide clients with access to mirrored data from the first storage node in the event the second storage node and/or the third storage node are unavailable when the first storage node fails.
    Type: Application
    Filed: July 15, 2015
    Publication date: December 8, 2016
    Inventors: Hrishikesh Keremane, Iswarya Ayyappan, Allen Rintoul Keeranchira Joseph, Vaiapuri Ramasubramaniam, Jitendra Pratap Singh Chauhan
  • Publication number: 20160132411
    Abstract: Direct monitoring of a plurality of storage nodes in a primary cluster is performed based on connectivity with the storage nodes. Indirect monitoring of a first storage node is performed, in response to direct monitoring of the first storage node indicating failure of the connectivity with the first storage node, wherein a second storage node of the plurality of nodes is a backup node for the first storage node. The indirect monitor of the first storage node indicates failure of the first storage node in response to performance of storage access operations by the second storage node that were previously performed by the first storage node. A cluster-switch operation is initiated to switch to from the primary cluster to a backup cluster based on an occurrence of at least one cluster-failure condition that comprises the indirect monitor of the first storage node indicating failure of the first storage node.
    Type: Application
    Filed: May 21, 2015
    Publication date: May 12, 2016
    Inventors: Amarnath Jolad, Kazunobu Nishime, Iswarya Ayyappan, Ankit Batra