MySQL backup using LVM snapshots...

Snapper is a tool that takes MySQL database snapshots.

The only snapshot method supported by Snapper is LVM snapshots.

Using snapshots to backup a MySQL database is an alternative to “online” or “hot” backup.

Snapshots are created by locking the database during the snapshot creation to ensure consistency of the backed-up data. Then the backup is performed from the snapshot without impacting the database.

http://provenscaling.com/software/snapper/

http://code.google.com/p/snapper/

svn://svn.provenscaling.com/public/snapper