Introducing: Dynamic Backups [BETA]
First of all, you can save a lot of disk space with Dynamic Backups. It is designed to back up only chunks/regions of your Minecraft worlds that may have changed. If the 'DynamicBackup' feature is enabled in the config, the plugin starts to detect chunks which are being entered by players - these chunks will later be backed up.
To differentiate between full Backups and Dynamic Backups, the Dynamic Backups have a "dynamic" tag in their filename.
If you need to use the Backup, just paste all files into your world folder (while your server is stopped). After a restart your world is equal to the world you had at the time of the backup creation and you saved a lot of disk space in this process

This video shows and explains the new features: