Patents by Inventor Dinuni K. Fernando

Dinuni K. Fernando 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).

  • Recovering a virtual machine after failure of post-copy live migration
    Patent number: 11983079
    Abstract: Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for any reason, the migrating VM is lost because the VM's latest consistent state is split between the source and destination nodes during migration. PostCopyFT provides a new approach to recover a VM after a destination or network failure during post-copy live migration using an efficient reverse incremental checkpointing mechanism. PostCopyFT was implemented and evaluated in the KVM/QEMU platform. Experimental results show that the total migration time of post-copy remains unchanged while maintaining low failover time, downtime, and application performance overhead.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: May 14, 2024
    Assignee: The Research Foundation for The State University of New York
    Inventors: Kartik Gopalan, Ping Yang, Dinuni K. Fernando, Jonathan Terner
  • RECOVERING A VIRTUAL MACHINE AFTER FAILURE OF POST-COPY LIVE MIGRATION
    Publication number: 20220382574
    Abstract: Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for any reason, the migrating VM is lost because the VM's latest consistent state is split between the source and destination nodes during migration. PostCopyFT provides a new approach to recover a VM after a destination or network failure during post-copy live migration using an efficient reverse incremental checkpointing mechanism. PostCopyFT was implemented and evaluated in the KVM/QEMU platform. Experimental results show that the total migration time of post-copy remains unchanged while maintaining low failover time, downtime, and application performance overhead.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Inventors: Kartik Gopalan, Ping Yang, Dinuni K. Fernando, Jonathan Terner
  • Recovering a virtual machine after failure of post-copy live migration
    Patent number: 11409619
    Abstract: Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for any reason, the migrating VM is lost because the VM's latest consistent state is split between the source and destination nodes during migration. PostCopyFT provides a new approach to recover a VM after a destination or network failure during post-copy live migration using an efficient reverse incremental checkpointing mechanism. PostCopyFT was implemented and evaluated in the KVM/QEMU platform. Experimental results show that the total migration time of post-copy remains unchanged while maintaining low failover time, downtime, and application performance overhead.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: August 9, 2022
    Assignee: The Research Foundation for The State University of New York
    Inventors: Kartik Gopalan, Ping Yang, Dinuni K. Fernando, Jonathan Terner
  • RECOVERING A VIRTUAL MACHINE AFTER FAILURE OF POST-COPY LIVE MIGRATION
    Publication number: 20210342232
    Abstract: Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for any reason, the migrating VM is lost because the VM's latest consistent state is split between the source and destination nodes during migration. PostCopyFT provides a new approach to recover a VM after a destination or network failure during post-copy live migration using an efficient reverse incremental checkpointing mechanism. PostCopyFT was implemented and evaluated in the KVM/QEMU platform. Experimental results show that the total migration time of post-copy remains unchanged while maintaining low failover time, downtime, and application performance overhead.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 4, 2021
    Inventors: Kartik Gopalan, Ping Yang, Dinuni K. Fernando, Jonathan Terner