This topic describes how to migrate UCloud virtual machines (VMs) to Alibaba Cloud.

Migrate Windows-based UCloud VMs to Alibaba Cloud

Before the migration, complete the following preparations:
  • Create snapshots to back up data.
  • Make sure that the system time of the VMWare VM is the same as the standard time of the region where the VMWare VM resides.
  • Make sure that the VMWare VM has outbound access to the following URLs and ports:
    • The endpoint https://smc.aliyuncs.com:443 that is used to access Server Migration Center (SMC).
    • Ports 8080 and 8703 that are required to connect to the intermediate instance during the migration process.
      Note During the migration, SMC creates, starts, stops, and releases the intermediate instance No_Delete_SMC_Transition_Instance. The default security group of the intermediate instance allows access to ports 8080 and 8703. Both ports are the migration service ports of the intermediate instance.
  • Make sure that the Volume Shadow Copy Service (VSS) is enabled.
  • Check whether the QEMU Guest Agent is installed. If the QEMU Guest Agent is installed, you must uninstall it. For information about how to uninstall the QEMU Guest Agent, see SMC FAQ.
  • Check the validity of your application licenses. After you migrate the VMWare VM to Alibaba Cloud, the application licenses that are associated with the underlying hardware may become invalid.
  • If you migrate a VM for the first time, we recommend that you perform a test migration.

After the preceding operations are complete, you can migrate the VM. For more information, see Migration process.

Migrate Linux-based UCloud VMs to Alibaba Cloud

Before the migration, complete the following preparations:
  • Create snapshots to back up data.
  • Make sure that the system time of the VMWare VM is the same as the standard time of the region where the VMWare VM resides.
  • Make sure that the VMWare VM has outbound access to the following URLs and ports:
    • The endpoint https://smc.aliyuncs.com:443 that is used to access Server Migration Center (SMC).
    • Ports 8080 and 8703 that are required to connect to the intermediate instance during the migration process.
      Note During the migration, SMC creates, starts, stops, and releases the intermediate instance No_Delete_SMC_Transition_Instance. The default security group of the intermediate instance allows access to ports 8080 and 8703. Both ports are the migration service ports of the intermediate instance.
  • Check the validity of your application licenses. After you migrate the VMWare VM to Alibaba Cloud, the application licenses that are associated with the underlying hardware may become invalid.
  • If you migrate a VM for the first time, we recommend that you perform a test migration.

After the preceding operations are complete, you can migrate the VM. For more information, see Migration process.

FAQ

Why am I unable to start or stop Linux instances in the Elastic Compute Service console?

You may be unable to start or stop Linux instances in the ECS console because some Linux kernels are customized by UCloud and may be incompatible with Alibaba Cloud. If your server runs the CentOS operating system, you can change the Linux kernels. For more information, visit Active Versions of CentOS Linux. For further assistance and technical support, see Contact us.