Which type of migration leads to business interruptions during the process?

Cold migration is a process where the virtual machine (VM) is powered off during the migration to a new host or storage location. Because the VM must be shut down before migration begins, this effectively makes the service it provides temporarily unavailable to users, resulting in business interruptions. This type of migration is typically used when there is a need to move resources without the capability to maintain continuous service availability.

Contrastingly, live migration allows the virtual machine to remain operational while it is being moved, minimizing downtime and preventing interruptions in service. Hot migration also refers to scenarios where services remain accessible during the transition. Scheduled migration, while pre-planned, also aims to minimize user disruption by choosing low-traffic periods. Cold migration is necessary in certain situations, such as when changes to the underlying hardware or significant recomposition of a VM are required, but it comes at the cost of business continuity during the process.