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Migrate entire server

Migrate entire server is a migration requirement that remains unchanged from the entire VM level, and is generally characterized by the following two use cases:

Cross-regional migration​

Cross-region migration refers to the migration of different regions within the same cloud platform or infrastructure.

You just need use copy action by your cloud infrastructure.

Cross-infrastructure migration​

Cross-infrastructure migration is migrating origin virtual machines to another infrastructure.

If cloud provider have "migration VM tools", it may easy for migration. Otherwise, you may need migration are as follows:

  1. Install a set of required software on the virtual machines to be migrated:

    • Cloud init
    • Virtio drivers
    • Other packages target cloud need

  2. Create a virtual machine image at source cloud

  3. Export the image to a file (format: vhd, RAW, etc.)

  4. Upload the exported file to the object store of the target cloud platform.

  5. Create a mirror in the cloud based on the uploaded file in the object store.

  6. Create a virtual machine based on the image in the cloud.