Patents by Inventor Kalpesh Ashok Bafna

Kalpesh Ashok Bafna 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: 11966729
    Abstract: In one embodiment, a system for managing communication connections in a virtualization environment includes a plurality of host machines implementing a virtualization environment, wherein each of the host machines includes a hypervisor, at least one user virtual machine (user VM), and a distributed file server that includes file server virtual machines (FSVMs) and associated local storage devices. Each FSVM and associated local storage device are local to a corresponding one of the host machines, and the FSVMs conduct I/O transactions with their associated local storage devices based on I/O requests received from the user VMs. Each of the user VMs on each host machine sends each of its representative I/O requests to an FSVM that is selected by one or more of the FSVMs for each I/O request based on a lookup table that maps a storage item referenced by the I/O request to the selected one of the FSVMs.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: April 23, 2024
    Assignee: Nutanix, Inc.
    Inventors: Richard James Sharpe, Kalpesh Ashok Bafna, Durga Mahesh Arikatla, Shyamsunder Prayagchand Rathi, Satyajit Sanjeev Deshmukh, Vishal Sinha, Anil Kumar Gopalapura Venkatesh, Rashmi Gupta, Rishabh Sharma, Yifeng Huang
  • Patent number: 11966730
    Abstract: In one embodiment, a system for managing a virtualization environment includes a set of host machines, each of which includes a hypervisor, virtual machines, and a virtual machine controller, and a data migration system configured to identify one or more existing storage items stored at one or more existing File Server Virtual Machines (FSVMs) of an existing virtualized file server (VFS). For each of the existing storage items, the data migration system is configured to identify a new FSVMs of a new VFS based on the existing FSVM, send a representation of the storage item from the existing FSVM to the new FSVM, such that representations of storage items are sent between different pairs of FSVMs in parallel, and store a new storage item at the new FSVM, such that the new storage item is based on the representation of the existing storage item received by the new FSVM.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: April 23, 2024
    Assignee: Nutanix, Inc.
    Inventors: Richard James Sharpe, Kalpesh Ashok Bafna, Satyajit Sanjeev Deshmukh, Durga Mahesh Arikatla
  • Patent number: 11954078
    Abstract: Examples described herein include virtualized file servers which may include cloned instances of the virtualized file server. Cloning a virtualized the server may allow for testing of new and/or revised features, disaster recovery plans, or other configurations while maintaining availability of the parent (e.g., source) virtualized file server.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 9, 2024
    Assignee: Nutanix, Inc.
    Inventors: Kalpesh Ashok Bafna, Anil Kumar Gopalapura Venkatesh, Devyani Suryakant Kanada, Saurabh Tyagi, Vijaykumar Bellubbi, Mausumi Ranasingh, Rishabh Sharma
  • Patent number: 11947952
    Abstract: In one embodiment, a system for managing a virtualization environment includes a set of host machines, each of which includes a hypervisor, virtual machines, and a virtual machine controller, and a virtualized file server backup system configured to identify backup data, wherein the backup data comprises data stored on the virtual disks and VFS configuration information, and the first data is identified in accordance with a backup policy, send the backup data to one or more remote sites for storage, and, in response to detection of changes in the backup data, send the changes to the remote sites in accordance with a replication policy. The backup data may be identified based on a protection domain associated with the backup policy. The data stored on the VFS may include one or more storage objects. The storage objects may include shares, groups of shares, files, or directories.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: April 2, 2024
    Assignee: Nutanix, Inc.
    Inventors: Anil Kumar Gopalapura Venkatesh, Richard James Sharpe, Durga Mahesh Arikatla, Kalpesh Ashok Bafna, Devyani Suryakant Kanada
  • Publication number: 20240103985
    Abstract: Examples of systems described herein include a virtualized file servers. Examples of virtualized file servers described herein may support disaster recovery of the virtualized file server. Accordingly, examples of virtualized file servers may support metadata fixing procedures to update metadata in a recovery setting. Examples of virtualized file servers may support hypervisor-agnostic disaster recovery.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 28, 2024
    Applicant: Nutanix, Inc.
    Inventors: Anil Kumar Gopalapura Venkatesh, Devyani Suryakant Kanada, Kalpesh Ashok Bafna, Mausumi Ranasingh, Saurabh Tyagi, Vijaykumar Bellubbi
  • Patent number: 11922203
    Abstract: Examples described herein include virtualized environments including a virtualized file server. Examples of file server virtual machine managers are described which may setup and/or configure file server virtual machines in accordance with a target number of connections and/or a target throughput for the virtualized file server. The virtualized file server may be scaled up, scaled down, scaled in, and/or scaled out.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: March 5, 2024
    Assignee: Nutanix, Inc.
    Inventors: Kalpesh Ashok Bafna, Eric Wang, Anil Kumar Gopalapura Venkatesh, Manoj Premanand Naik, Yifeng Huang
  • Patent number: 11922157
    Abstract: In one embodiment, a system for managing communication connections in a virtualization environment includes a plurality of host machines implementing a virtualization environment, wherein each of the host machines includes a hypervisor, at least one user virtual machine (user VM), and a distributed file server that includes file server virtual machines (FSVMs) and associated local storage devices. Each FSVM and associated local storage device are local to a corresponding one of the host machines, and the FSVMs conduct I/O transactions with their associated local storage devices based on I/O requests received from the user VMs. Each of the user VMs on each host machine sends each of its representative I/O requests to an FSVM that is selected by one or more of the FSVMs for each I/O request based on a lookup table that maps a storage item referenced by the I/O request to I/O the selected one of the FSVMs.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: March 5, 2024
    Assignee: Nutanix, Inc.
    Inventors: Richard James Sharpe, Kalpesh Ashok Bafna, Durga Mahesh Arikatla, Shyamsunder Prayagchand Rathi, Satyajit Sanjeev Deshmukh, Vishal Sinha, Anil Kumar Gopalapura Venkatesh, Rashmi Gupta, Rishabh Sharma, Yifeng Huang
  • Publication number: 20240070032
    Abstract: Examples of systems described herein may allow users to change from an application level disaster recovery system (e.g., an application level replication policy) to a share level disaster recovery system (e.g., a share level replication policy). The change may be made such that a base snapshot need not again be taken when beginning operation under the share level replication policy—rather, the base snapshot previously taken during application level replication may be used in some examples. That base snapshot may be leveraged, an initial set of common share snapshots established, and protection maintained going forward on a share level basis.
    Type: Application
    Filed: March 3, 2023
    Publication date: February 29, 2024
    Applicant: Nutanix, Inc.
    Inventors: Eric Wang, Kalpesh Ashok Bafna
  • Publication number: 20240045774
    Abstract: Examples of systems described herein provide for share-level disaster recovery on, for example, virtualized file servers by enabling additional snapshots, including self-service recovery (SSR) snapshot migration in addition to replication snapshot migration to a disaster recovery location. In examples, a disaster recovery location may receive a replication of a share of a file system, the snapshot configured for recovery of the share at the disaster recovery location. The replication snapshot may include one or more additional snapshots, each taken since a time of a previous replication snapshot. At least one of the one or more additional snapshots may include an SSR snapshot, identifiable based at least on a tag associated with a process used to create the SSR snapshot at a primary location. The at least one additional snapshot may be extracted for use by another instance of the process at the disaster recovery location.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 8, 2024
    Inventors: Eric Wang, Kalpesh Ashok Bafna
  • Patent number: 11875176
    Abstract: Examples described herein include virtualized environments including a virtualized file server. Examples of file server virtual machine managers are described which may setup and/or configure file server virtual machines in accordance with a target number of connections and/or a target throughput for the virtualized file server. The virtualized file server may be scaled up, scaled down, scaled in, and/or scaled out.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: January 16, 2024
    Assignee: Nutanix, Inc.
    Inventors: Kalpesh Ashok Bafna, Eric Wang, Anil Kumar Gopalapura Venkatesh, Manoj Premanand Naik, Yifeng Huang
  • Patent number: 11775397
    Abstract: Examples of systems described herein include a virtualized file servers. Examples of virtualized file servers described herein may support disaster recovery of the virtualized file server. Accordingly, examples of virtualized file servers may support metadata fixing procedures to update metadata in a recovery setting. Examples of virtualized file servers may support hypervisor-agnostic disaster recovery.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: October 3, 2023
    Assignee: Nutanix, Inc.
    Inventors: Anil Kumar Gopalapura Venkatesh, Devyani Suryakant Kanada, Kalpesh Ashok Bafna, Mausumi Ranasingh, Saurabh Tyagi, Vijaykumar Bellubbi
  • Publication number: 20230289170
    Abstract: In one embodiment, a system for managing a virtualization environment includes host machines implementing a virtualization environment, a plurality of clusters of the host machines, a virtualized file server (VFS) comprising a plurality of file server virtual machines (FSVMs), and a VFS cluster manager (CM) configured to distribute storage items among the clusters and receive cluster storage statistics for one or more shares of the VFS. The CM is further configured to, in response to a request from a first FSVM to identify a storage location for a storage item, identify a cluster at which the storage item is to be located based on the cluster storage statistics, identify a second FSVM at which the storage item is to be located based on compute usage statistics of one or more FSVMs in the identified cluster, and send an address of the second FSVM to the first FSVM.
    Type: Application
    Filed: November 10, 2022
    Publication date: September 14, 2023
    Applicant: Nutanix, Inc.
    Inventors: Richard James Sharpe, Durga Mahesh Arikatla, Kalpesh Ashok Bafna, Satyajit Sanjeev Deshmukh, Shyamsunder Prayagchand Rathi, Vishal Sinha, Devyani Suryakant Kanada
  • Publication number: 20230068262
    Abstract: A file server manager disclosed herein accesses information regarding a selected share of a source distributed file server for replication, where the selected share stores at least a portion of a namespace of storage items and is hosted by a first file server virtual machine of the source distributed file server. The file server manager accesses a mapping between virtual machines of the source distributed file server and virtual machines of the destination distributed file server and replicates the selected share to a second file server virtual machine of the destination distributed file server based on the mapping. The file server manager directs a request to read a first storage item to the destination distributed file server and directs a request to write to a second storage item to the source distributed file server while the destination distributed file server services the request to read the first storage item.
    Type: Application
    Filed: January 21, 2022
    Publication date: March 2, 2023
    Applicant: NUTANIX, INC.
    Inventors: Kalpesh Ashok Bafna, Durga Mahesh Arikatla, Eric Wang, Lakshmana Reddy, Manoj Premanand Naik, Sanath Kumar Kalligundi Shivaswamy
  • Publication number: 20230066137
    Abstract: An example file server manager provides a user interface for selection of a share of a source distributed file server to be replicated at a destination distributed file server, where the share of the source distributed file server is accessed using a first file server virtual machine at the source distributed file server. The file server manager configures a policy for replication of the share of the source distributed file server to the destination distributed file server based on input received at the user interface and displays, at the user interface, a replication status for the share of the source distributed file server. The replication status indicates that a share of the destination distributed file server corresponding to the share of the source distributed file server has been updated based on a snapshot of the source distributed file server.
    Type: Application
    Filed: January 21, 2022
    Publication date: March 2, 2023
    Applicant: NUTANIX, INC.
    Inventors: Rama C. Kishore Vijjapurapu, Mausumi Ranasingh, Kavitha Pasikanti, Eric Wang, Kalpesh Ashok Bafna
  • Publication number: 20230056425
    Abstract: An example file server manager disclosed herein receives a registration for a distributed file server, where the distributed file server is hosted in a virtualization environment and includes a cluster of file server virtual machines configured to provide access to a file system. The file server manager further synchronizes metadata with the distributed file server, the metadata including identification of each of the file server virtual machines of the cluster of file server virtual machines, the metadata including information regarding the file system and receiving a management request for the distributed file server. The file server manager further formats the management request for the virtualization environment based on the metadata and utilizing information from the registration to access the distributed file server with the formatted management request.
    Type: Application
    Filed: January 21, 2022
    Publication date: February 23, 2023
    Applicant: NUTANIX, INC.
    Inventors: Anil Kumar Gopalapura Venkatesh, Kalpesh Ashok Bafna, Manoj Premanand Naik, Mausumi Ranasingh
  • Publication number: 20230056217
    Abstract: An example file server manager updates a selected share of a destination distributed file server based on a snapshot of at least a portion of a selected share of a source distributed file server. The selected share of the destination distributed file server is updated while the source distributed file server serves client requests for storage items of the selected share of the source distributed file server. The file server manager receives a request to failover from the source distributed file server to the destination distributed file server and configures the destination distributed file server to service read and write requests for storage items of the selected share of the destination distributed file server. The file server manager further redirects client requests for storage items of the selected share of the source distributed file server to the destination distributed file server by updating active directory information.
    Type: Application
    Filed: January 21, 2022
    Publication date: February 23, 2023
    Applicant: NUTANIX, INC.
    Inventors: Shyamsunder Prayagchand Rathi, Hemanth Thummala, Lakshmana Reddy, Pradeep Thomas, Kalpesh Ashok Bafna, Manoj Premanand Naik
  • Patent number: 11579861
    Abstract: In one embodiment, a system for managing a virtualization environment includes a set of host machines, each of which includes a hypervisor, virtual machines, and a virtual machine controller, and a data migration system configured to identify one or more existing storage items stored at one or more existing File Server Virtual Machines (FSVMs) of an existing virtualized file server (VFS). For each of the existing storage items, the data migration system is configured to identify a new FSVMs of a new VFS based on the existing FSVM, send a representation of the storage item from the existing FSVM to the new FSVM, such that representations of storage items are sent between different pairs of FSVMs in parallel, and store a new storage item at the new FSVM, such that the new storage item is based on the representation of the existing storage item received by the new FSVM.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: February 14, 2023
    Assignee: Nutanix, Inc.
    Inventors: Richard James Sharpe, Kalpesh Ashok Bafna, Shyamsunder Prayagchand Rathi, Satyajit Sanjeev Deshmukh, Durga Mahesh Arikatla
  • Patent number: 11550559
    Abstract: A system may include a deployment system configured to receive a request to upgrade a selected virtual machine (VM) of multiple VMs on a plurality of host machines from a first program code version to a second program code version, and, for each host machine, request an upgrade token. When the host machine acquires the upgrade token, the deployment system is configured to generate a snapshot of a code image associated with the second program code version, and provide the snapshot to the host machine via a virtual disk. The snapshot is stored on a storage device associated with a host machine or a server host machine. The snapshot may include metadata identifying a location of the code image on the storage device.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: January 10, 2023
    Assignee: Nutanix, Inc.
    Inventors: Kalpesh Ashok Bafna, Aroosh Sohi, Alexander Michael Bunch
  • Patent number: 11550558
    Abstract: In one embodiment, a system for managing a virtualization environment includes a set of host machines, each of which includes a hypervisor, virtual machines, and a virtual machine controller, one or more virtual disks comprising a plurality of storage devices, the one or more virtual disks being accessible by the virtual machine controllers, where the virtual machine controllers conduct I/O transactions with the virtual disks, and a deployment system configured to receive a request to deploy a virtualized file server on a plurality of host machines, where the request is associated with deployment parameters, select a deployment image for the host machines based on the deployment parameters, and provide the deployment image to each host machine via the virtual disk. The virtual machine controller located on the host machine stores at least a portion of the deployment image on a storage device associated with the host machine.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: January 10, 2023
    Assignee: Nutanix, Inc.
    Inventors: Kalpesh Ashok Bafna, Aroosh Sohi, Alexander Michael Bunch, Venkata Vamsi Krishna Kothuri, Rishabh Sharma, Mausumi Ranasingh
  • Patent number: 11550557
    Abstract: In one embodiment, a system for managing communication connections in a virtualization environment includes a plurality of host machines implementing a virtualization environment, wherein each of the host machines includes a hypervisor, at least one user virtual machine (user VM), and a distributed file server that includes file server virtual machines (FSVMs) and associated local storage devices. Each FSVM and associated local storage device are local to a corresponding one of the host machines, and the FSVMs conduct I/O transactions with their associated local storage devices based on I/O requests received from the user VMs. Each of the user VMs on each host machine sends each of its respective I/O requests to an FSVM that is selected by one or more of the FSVMs for each I/O request based on a lookup table that maps a storage item referenced by the I/O request to the selected one of the FSVMs.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: January 10, 2023
    Assignee: Nutanix, Inc.
    Inventors: Richard James Sharpe, Kalpesh Ashok Bafna, Durga Mahesh Arikatla, Shyamsunder Prayagchand Rathi, Satyajit Sanjeev Deshmukh, Vishal Sinha, Anil Kumar Gopalapura Venkatesh, Rashmi Gupta, Rishabh Sharma, Yifeng Huang