Q5Cloud Computing
Question
2 marks
What is live migration in virtualization?
Answer
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 seamlessly transferred to ensure high availability and continuous service. Techniques like pre-copy iteratively transfer memory pages while the VM keeps running, freezing it only briefly at the end to copy the last dirty pages, minimizing downtime. It is essential for load balancing, hardware maintenance, and fault tolerance in data centers.