公开(公告)号：US20230115261A1

公开(公告)日：2023-04-13

申请号：US17499059

申请日：2021-10-12

Applicant: VMware, Inc.

Inventor： Yifeng Xiao ,  Maosheng Ren ,  Yang Yu ,  Jia Zou

IPC: G06F9/50 ,  G06F9/54 ,  G06F9/455

Abstract: Techniques for migrating a stateful workload between a source container cluster and a destination container cluster that have different storage backends are provided. In one set of embodiments, these techniques involve creating and running, at the time of the migration, transfer processes in the source and destination container clusters respectively, where (1) the source-side transfer process mounts the workload's persistent volumes (referred to as source persistent volumes) in the source container cluster, and (2) the destination-side transfer process mounts destination persistent volumes that have been dynamically provisioned in the destination container cluster in accordance with the specifications of the source persistent volumes. Upon being created and run, the source-side and destination-side transfer processes can work in concert to securely copy the data in the source persistent volumes to their corresponding destination persistent volumes, thereby transferring that data between the storage backends of the source and destination container clusters.