I want to backup my server.
This is a brand new server and I tried clonezilla but it failed

I am trying to get a full backup where - I pop in a disk and reboot the server and the o/s on the disk comes into play and I am able to backup the hard disk

This is a Raid 5 configuration and could you please guide me to some enterprise level backup software either paid or free

Is this popularly called Bare metal backup