Double-Take Availability is a real-time data replication and failover software product. It augments your existing data protection strategy by reducing downtime and data loss, and it provides these services with minimal impact on existing network and communication resources.
Double-Take Availability allows you to identify and protect workloads by replicating, in real-time, data from a production server, known as the source, to a backup server, known as the target. The target server, on a local network or at a remote site, stores the copy of the data from the source. Double-Take Availability monitors any changes to the data and sends the changes to the target server. By replicating only the file changes rather than copying an entire file, Double-Take Availability allows you to more efficiently use resources.