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What are the different migration methods?

April 26, 2017different methods migration

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What are the different migration methods?

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There are two primary types of migration with QEMU/KVM and libvirt: • Plain migration: The source host VM opens a direct unencryptyed TCP connection to the destination host for sending the migration data. Unless a port is manually specified, libvirt will choose a migration port in the range 49152-49215, which will need to be open in the firewall on the remote host. • Tunneled migration: The source host libvirtd opens a direct connection to the destination host libvirtd for sending migration data. This allows the option of encrypting the data stream. This mode doesn’t require any extra firewall configuration, but is only supported with qemu 0.12.0 or later, and libvirt 0.7.2.