Agentless migration and agent-based migration are two solutions for migrating your source servers and virtual machines to Azure using the Azure Migrate: Server Migration tool.
i. Agentless migrations- These migrations do not involve the installation of any software (agents) on the source VMs/servers. The agentless option enables replication by integrating with the virtualization provider.
ii. Agent-based migrations- These migrations involve the installation of Azure Migrate software (agents) on the source VMs/machines to be migrated. The replication ability of the agent-based solution is not dependent on the virtualization platform.
