LVM Snapshots
LVM snapshots offer a way to backups directories / partitions which are constantly changing, while reducing the downtime of any services which use these directories / partitions.
LVM Related Tools
- dsnapshot (high level tool for using LVM)
Informative Links
- http://www.openfusion.net/tags/brackup (using brackup and LVM's)
- Consistent Backup LINUX LVM Snapshots (step by step instructions, covering LVM snapshots and MySQL locking)