Live Migration of Virtual Machines Live migration is a process that allows the virtual machines (VMs) to move between physical machines without disrupting t...
Live Migration of Virtual Machines
Live migration is a process that allows the virtual machines (VMs) to move between physical machines without disrupting the services they provide. This technique is used in cloud computing to ensure that VMs can be migrated between different physical locations or when the physical infrastructure is upgraded or replaced.
How it Works:
The VMs are powered down on the source machine.
The VMs are gathered and transferred to a staging environment on the target machine.
The target machine prepares a network and storage environment for the VMs.
The VMs are transferred across the network.
The VMs are launched on the target machine.
The network and storage settings are automatically configured.
The VMs are verified to ensure that they are running correctly on the target machine.
The source and target machines are checked to ensure that they are in sync.
Benefits of Live Migration:
High Availability: VMs can be migrated quickly and seamlessly without downtime.
Scalability: VMs can be easily scaled up or down to meet changing demands.
Resilience: Live migration ensures that VMs are resilient to hardware failures or network outages.
Examples:
Live migration is commonly used when migrating VMs between different datacenters for disaster recovery purposes.
Cloud providers use live migration to ensure that VMs can be migrated between different cloud regions.
Live migration can also be used to upgrade physical machines and then migrate the VMs to the new machines