What are the different VM migration techniques?

VM migration is the most important feature of virtualization. With this feature an OS state is transferred from one computing node to another physical node. There are two different techniques of migration, first is pre-copy migration and the second is post-copy migration technique.

What is a virtual machine migration?

Virtual machine migration is the task of moving a virtual machine from one physical hardware environment to another. Virtual machine migration is also known as teleportation.

What are the advantages of virtual machine migration?

In particular, Virtual Machine (VM) migration is a powerful management technique that gives data center operators the ability to adapt the placement of VMs in order to better satisfy performance objectives, improve resource utilization and communication locality, mitigate performance hotspots, achieve fault tolerance.

How does virtual machine migration work?

Live migration refers to the process of moving a running virtual machine or application between different physical machines without disconnecting the client or application. Memory, storage, and network connectivity of the virtual machine are transferred from the original guest machine to the destination.

What does it mean to migrate a virtual machine?

Unlike migration, cloning a virtual machine or copying its virtual disks and configuration file are procedures that create a new virtual machine. Cloning and copying a virtual machine are also not forms of migration. By using migration, you can change the compute resource that the virtual machine runs on.

Can a virtual machine be moved from one data center to another?

You can also use cold migration to move virtual machines from one virtual switch to another, and from one data center to another. You can perform cold migration manually or you can schedule a task. Moving a powered on virtual machine to a new host.

How is live VM migration used in the real world?

Live VM migration continuously provides the service without interrupting the connectivity of running application during migration time to obtain seamless connectivity, avoiding SLA violation and to get optimal resource utilization. It is also used in adaptive application resource remapping [ 35 ].

What do you mean by cold migration in VMware?

Cold migration is the migration of powered off or suspended virtual machines between hosts across clusters, data centers, and vCenter Server instances. By using cold migration, you can also move associated disks from one datastore to another.