Mirroring data

Make sure you have a valid source and target specified, click Configure protection from the main Full-Server Failover Manager page, and then select the Advanced tab.
Select the type of Double-Take Availability mirroring process you want to perform. A Full mirror will transmit all files from the source to the target. A Checksum mirror will transmit only the blocks of data that are different between the source and target.
Click OK to save the settings.