2016-04-29 Project mondorescue version 3.2.2 is now available (debian 8 available finally )
Mondo is reliable. is in use by Lockheed-Martin, Nortel Networks, Siemens, HP, IBM, NASA's JPL, the US Dept of Agriculture, dozens of smaller companies, and tens of thousands of users.
http://www.mondorescue.org/about.shtml
------------------------
Very easy to use programa that allow you to make hot full system backups while you keep working (it let you to exclude some directories).It backs up your GNU/Linux server or workstation to tape, CD-R, CD-RW, DVD-R[W], DVD+R[W], NFS or hard disk partition. In the event of catastrophic data loss, you will be able to restore all of your data [or as much as you want], from bare metal if necessary.