How Double-Take Works

By continuously maintaining online copies of server data on another server, Double-Take reduces or eliminates data loss and limits downtime to seconds. Combined with existing backup technologies and applications, Double-Take is uniquely suited to meet the new requirements for enterprise data protection and disaster recovery.

Double-Take works in the following way:

• - 1. Double-Take source module uses patented technology that lets it run with minor system performance impact.
• - 2. Double-Take Installable File System ( IFS ) caches data as it is buffered, often replicating data even before it is actually written to the source disk.
• - 3. Double-Take uses TCP/IP networking, no specialised hardware is required.
• - 4. Reduce cost, simplify management and improve general performance by moving your backups to a centralised backup server.
• - 5. Double-Take communication technology and resource management provide reliable performance over slower offsite links.
• - 6. Double-Take allows you to select which file systems, raw devices, directories or files should be protected, reducing storage demands and bandwidth requirements.
• - 7. Double-Take target engine is extremely efficient and highly scalable, supporting one-to-one, one-to-many and many-to-one, as well as same server and chained configurations.
• - 8. The system failover capability enables the double-take target server to stand in for multiple source servers.
• - 9. Open files that are locked on the source servers are available for backup on the target server.

Basic are happy to demonstrate the power of double-take replication and backup from our dedicated demonstration area. We are ideally located in Nottingham, in the UK Midlands. Basic support clients throughout England.

Courtesy of NSi, the authors of Double-Take, there is a Flash Movie with more information.

Watch the Double-Take Flash Movie