A.Hot migration is the migration of virtual machines running from one host to another king machine, business will not occur during the migration process Break.

B.In the performance test-reliability test, there are tests for virtual machine migration, including hot migration, cold migration, migration duration, Duration of business interruption.

C.both hot and cold migrations will migrate memory and disk data

D.Cold migration is to migrate a virtual machine in a stopped state from one host to another host, and business will be interrupted during the migration process.