Does a Source Server Need Internet Access If It Can Communicates with the Target Server Through a Direct Connect, VPN, or VPC Peering Connection?

The Direct Connect, VPN, or VPC peering connection between the source and target servers is used only for data transmission. Control traffic between the source server and SMS must go through the Internet, so the source server must have Internet access.

If the source server cannot access the Internet, you can configure a proxy server for the source server.

The following figure shows how SMS works.

• Control flow: the interaction process between the source server and SMS

  The interactions include:

  Step 2: The Agent registers itself with SMS and reports the information about the source server to SMS. Then, SMS evaluates migration feasibility of the source server.

  Step 4: The Agent receives and executes the migration commands sent by SMS.

• Data flow: the process of migrating data on the source server

  The data migration includes:

  Step 5: SMS migrates the system disk of the source server.

  Step 6: SMS migrates the data disks of the source server.