Backup Recovery of a disk failure

I have installed RHEL 6.6 for 64 bit workstation, along with a bunch of libraries that were required for our scientific programs, and would like to know what other RHEL users recommend for a backup and recovery software to work with an external recovery hard drive. I have found three after an internet search: Acronis Total Image, Storix SBAdmin and Symantec Backup. We have used Acronis in the past but it was a bit clumsy to use.

Any comments?