Patents by Inventor Balaji Ramani
Balaji Ramani 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: 11836513Abstract: A volume rehost tool migrates a storage volume from a source virtual server within a distributed storage system to a destination storage server within the distributed storage system. The volume rehost tool can prevent client access to data on the volume through the source virtual server until the volume has been migrated to the destination virtual server. The tool identifies a set of storage objects associated with the volume, removes configuration information for the set of storage objects, and removes a volume record associated with the source virtual server for the volume. The tool can then create a new volume record associated with the destination virtual server, apply the configuration information for the set of storage objects to the destination virtual server, and allow client access to the data on the volume through the destination virtual server.Type: GrantFiled: June 23, 2020Date of Patent: December 5, 2023Assignee: NetApp, Inc.Inventors: Vani Vully, Avishek Chowdhury, Balaji Ramani, Vasudev Mulchandani
-
Patent number: 11836155Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: GrantFiled: April 2, 2021Date of Patent: December 5, 2023Assignee: NetApp, Inc.Inventors: Akhil Kaushik, Balaji Ramani
-
Publication number: 20220276941Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.Type: ApplicationFiled: May 16, 2022Publication date: September 1, 2022Inventors: Balaji Ramani, Harsha Sridhara, Rakshit Karnawat
-
Patent number: 11334454Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.Type: GrantFiled: March 2, 2020Date of Patent: May 17, 2022Assignee: NetApp Inc.Inventors: Balaji Ramani, Harsha Sridhara, Rakshit Karnawat
-
Patent number: 11228486Abstract: A method, non-transitory computer readable medium and storage controller computing device that receives a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation. A determination is made when configuration settings for the storage virtual machine are locked. The configuration change operation is applied to the configuration settings for the storage virtual machine when the determining indicates the configuration settings for the storage virtual machine are not locked. A failure message is sent in response to the configuration change request when the configuration settings for the storage virtual machine are determined to be locked.Type: GrantFiled: August 26, 2019Date of Patent: January 18, 2022Assignee: NetApp, Inc.Inventors: Harsha Sridhara, Balaji Ramani
-
Publication number: 20210224293Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: ApplicationFiled: April 2, 2021Publication date: July 22, 2021Inventors: Akhil Kaushik, Balaji Ramani
-
Patent number: 11068503Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: GrantFiled: May 2, 2019Date of Patent: July 20, 2021Assignee: NetApp, Inc.Inventors: Akhil Kaushik, Balaji Ramani
-
Publication number: 20210176513Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.Type: ApplicationFiled: February 23, 2021Publication date: June 10, 2021Inventors: Balaji Ramani, Kazunobu Nishime, Pankti Vinay Majmudar, Prachi Bapurao Deshmukh, Susan M. Coatney, Vijay Singh
-
Patent number: 10970310Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: GrantFiled: November 15, 2018Date of Patent: April 6, 2021Assignee: NetApp Inc.Inventors: Akhil Kaushik, Balaji Ramani
-
Patent number: 10963289Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.Type: GrantFiled: June 28, 2019Date of Patent: March 30, 2021Assignee: NetApp Inc.Inventors: Balaji Ramani, Kazunobu Nishime, Pankti Vinay Majmudar, Prachi Bapurao Deshmukh, Susan M. Coatney, Vijay Singh
-
Publication number: 20200319912Abstract: A volume rehost tool migrates a storage volume from a source virtual server within a distributed storage system to a destination storage server within the distributed storage system. The volume rehost tool can prevent client access to data on the volume through the source virtual server until the volume has been migrated to the destination virtual server. The tool identifies a set of storage objects associated with the volume, removes configuration information for the set of storage objects, and removes a volume record associated with the source virtual server for the volume. The tool can then create a new volume record associated with the destination virtual server, apply the configuration information for the set of storage objects to the destination virtual server, and allow client access to the data on the volume through the destination virtual server.Type: ApplicationFiled: June 23, 2020Publication date: October 8, 2020Inventors: Vani Vully, Avishek Chowdhury, Balaji Ramani
-
Patent number: 10725806Abstract: A volume rehost tool migrates a storage volume from a source virtual server within a distributed storage system to a destination storage server within the distributed storage system. The volume rehost tool can prevent client access to data on the volume through the source virtual server until the volume has been migrated to the destination virtual server. The tool identifies a set of storage objects associated with the volume, removes configuration information for the set of storage objects, and removes a volume record associated with the source virtual server for the volume. The tool can then create a new volume record associated with the destination virtual server, apply the configuration information for the set of storage objects to the destination virtual server, and allow client access to the data on the volume through the destination virtual server.Type: GrantFiled: February 16, 2016Date of Patent: July 28, 2020Assignee: NetApp Inc.Inventors: Vani Vully, Avishek Chowdhury, Balaji Ramani
-
Patent number: 10701151Abstract: Methods and systems for managing access to virtual storage systems is provided. A listening socket is configured for an application for detecting communication for a plurality of virtual storage systems presented by a clustered storage system having a plurality of nodes. A packet is received at a node of the clustered storage system from a client system for a virtual storage system from among the plurality of virtual storage systems. An identifier for the virtual storage system for which the packet is destined is determined. A connection socket is cloned for the virtual storage system such that any other packet for a same connection and for the virtual storage system can be forwarded to the virtual storage system. Thereafter, the packet is processed by the application on behalf of the virtual storage system.Type: GrantFiled: October 27, 2014Date of Patent: June 30, 2020Assignee: NETAPP, INC.Inventors: Jeffrey Eric Semke, Prabhu Hariharan, Balaji Ramani, Bindiya Vasudevan Syamala
-
Publication number: 20200201723Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.Type: ApplicationFiled: March 2, 2020Publication date: June 25, 2020Inventors: Balaji Ramani, Harsha Sridhara, Rakshit Karnawat
-
Patent number: 10621056Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.Type: GrantFiled: November 22, 2017Date of Patent: April 14, 2020Assignee: NetApp Inc.Inventors: Balaji Ramani, Harsha Sridhara, Rakshit Kamawat
-
Publication number: 20200042536Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: ApplicationFiled: November 15, 2018Publication date: February 6, 2020Inventors: Akhil Kaushik, Balaji Ramani
-
Publication number: 20200042537Abstract: Techniques are provided for synchronous replication based cutover. An asynchronous replication process is executed to perform asynchronous incremental transfers of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until a cutover criteria is met. A synchronous replication process is executed to synchronously replicate operations, targeting the storage object, to the replicated storage object based upon the cutover criteria being met. A cutover is performed to direct operations from targeting the storage object to targeting the replicated storage object based upon the synchronous replication process reaching a steady state of synchronous replication for sub-objects of the storage object, where operations are committed to both the storage object and the replicated storage object.Type: ApplicationFiled: May 2, 2019Publication date: February 6, 2020Inventors: Akhil Kaushik, Balaji Ramani
-
Publication number: 20190386875Abstract: A method, non-transitory computer readable medium and storage controller computing device that receives a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation. A determination is made when configuration settings for the storage virtual machine are locked. The configuration change operation is applied to the configuration settings for the storage virtual machine when the determining indicates the configuration settings for the storage virtual machine are not locked. A failure message is sent in response to the configuration change request when the configuration settings for the storage virtual machine are determined to be locked.Type: ApplicationFiled: August 26, 2019Publication date: December 19, 2019Inventors: HARSHA SRIDHARA, BALAJI RAMANI
-
Publication number: 20190324787Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.Type: ApplicationFiled: June 28, 2019Publication date: October 24, 2019Inventors: Balaji Ramani, Kazunobu Nishime, Pankti Vinay Majmudar, Prachi Bapurao Deshmukh, Susan M. Coatney, Vijay Singh
-
Patent number: 10397053Abstract: A method, non-transitory computer readable medium and storage controller computing device that receives a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation. A determination is made when configuration settings for the storage virtual machine are locked. The configuration change operation is applied to the configuration settings for the storage virtual machine when the determining indicates the configuration settings for the storage virtual machine are not locked. A failure message is sent in response to the configuration change request when the configuration settings for the storage virtual machine are determined to be locked.Type: GrantFiled: August 14, 2014Date of Patent: August 27, 2019Assignee: NetApp Inc.Inventors: Harsha Sridhara, Balaji Ramani