Published at LXer:

De-duplication! That is the keyword and if your backup storage hardware does not support it natively you still need it. That is the focus of this article. So I wrote earlier about rsync backups and the strategies used in the backintime software. Having gotten a bit of time to work with it I hope to outline a method to do “snapshot” style backups using rsync. This gives us the ability to quickly and easily “roll-back” to a previous date and time. Additionally the management of our backups gets vastly simplified and the de-duplication that this brings saves a ton of space.

Read More...