This is VERY important - OC3/PR took it a step farther recently!
We just upgraded our backup solutions and are migrating customers now!
The new backup system is on a scalable redundant cluster capable of growing to 100 petabytes operating on R1soft (enterprise backup software
www.r1soft.com). If a customers server dies for some reason - we can click 1 button and restore it on any hardware - after the restore is complete the server reboots and starts pinging again - our customers do not even need to reconfigure their OS or install their scripts - it backs up EVERYTHING. On top of this - it supports backing up MINUTELY! I have a customer who:
Backs up every 5 minutes and stores the restore points for 24 hours (so 300+ restore points in a day)
Backs up daily and saves restore points for a month
Backs up Monthly and saves it for a year!
Because they use incremental backups the space required for additional restore points is almost nothing.
So - BACK UP!