Patents by Inventor Dattatraya Koujalagi

Dattatraya Koujalagi 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).

  • Hypervisor remote offload for VM data migration between storage devices
    Patent number: 11275599
    Abstract: Offloading techniques to assist a hypervisor with VM data migration between storage devices are disclosed. In an embodiment, a method to offload live data migration from hypervisors includes migrating snapshots from a source device to a destination device, where the snapshots are associated with a virtual machine (VM) being migrated from a source device to a destination device. The method includes requesting a hypervisor to take a hypervisor snapshot. The method includes taking a storage array-based snapshot after requesting the hypervisor to take the hypervisor snapshot, and requesting the hypervisor to migrate live data from the source device to the destination device including by using the hypervisor snapshot to offload hypervisor live data migration. Hypervisor offload can be performed for various hypervisors and protocols including vSphere Storage APIs Array Integration (VAAI) and Remote offloaded data transfer (ODX).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: March 15, 2022
    Assignee: Tintri by DDN, Inc.
    Inventors: Luong Duong, Mark G. Gritter, Soujanya Shankaranarayana, Nikhil Pujari, Kavita Agarwal, Karthik Ravichandra, Dattatraya Koujalagi
  • VM data migration between storage devices
    Patent number: 11169835
    Abstract: VM data migration between storage devices is disclosed. In an embodiment, a method of VM data migration includes determining snapshot data and live data corresponding to the VM based on a request to migrate a VM from a source device to a destination device. The method migrates the snapshot data from the source device to the destination device including by setting up a migration path and creating a migration configuration in the source device. The method requests a hypervisor to migrate the live data from the source device to the destination device. The method removes the migration path, the migration configuration, and snapshot data from the source device.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: November 9, 2021
    Assignee: Tintri by DDN, Inc.
    Inventors: Luong Duong, Mark G. Gritter, Soujanya Shankaranarayana, Nikhil Pujari, Kavita Agarwal, Karthik Ravichandra, Dattatraya Koujalagi
  • Efficient deletion of shared snapshots
    Patent number: 10248336
    Abstract: Efficient deletion of a shared snapshot and other workflows are described herein, including: determining to delete a shared snapshot associated with a first container, wherein the shared snapshot shares with a second container at least a subset of data values that are stored by the shared snapshot, the determination is based at least in part on the shared snapshot sharing data values with not more than a prescribed number of containers other than the second container and an occurrence of a deletion triggering event; and causing zero or more data values that are stored by the shared snapshot and shared with the second container to be associated with the second container prior to deleting the shared snapshot.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 2, 2019
    Assignee: Tintri by DDN, Inc.
    Inventors: Dattatraya Koujalagi, Shobhit Dayal, Karthik Ravichandra