Backup is the traditional way most businesses protect their digital assets from disaster. At regular intervals, changes in local storage are transferred to either a local backup device or a cloud backup service. Usually, these changes are incremental and go into backup archives. A good backup service will store ongoing snapshots, so it’s always possible to go back in time and recover an old document.
The gotcha with backup systems is that recovery is often cumbersome. You usually have to launch a backup program on your PC, dig through the various backup instances, and initiate a restore. In most cases, you can’t really use or read the files in the backups until they’re restored to your computer.
Cloud sync, by contrast, takes files that exist on your local computer and moves them into a cloud infrastructure. Most cloud infrastructures encourage you to work on the files in the cloud. In fact, cloud vendors would prefer you to live in their cloud applications rather than treating them as mere repositories.
Read a real-world example by ZDNet’s David Gewirtz of how a cloud-based disaster recovery strategy can help sustain business continuity, even for small businesses and families, on ZDNet.