Build a backup server ( Centos ) using rsync - UPDATED

Hello, I'm looking for a system admin, who know what he do professional... also not less expert of 5 years in backup management. This project is going to use Rsync technologies to make my new box creating users account for backup services using these features: Creating users account through WHMCS control panel, or through any secure control panel. ------- Daily backup using Rsync technology RAID6 storage SSH encryption On-the-fly compression Get back online instantly with a Samba mount FTP/SFTP access --------- The server specs is: CPU's: 1x Intel 4-core 2.13 GHz - RAM : 8GB - HDD's: 6x 2TB SATA - Unmetered incoming bandwidth - 25TB outgoing bandwidth (locked) - Intelligent Platform Management Interface (IPMI). -------- So first you need to setup the centos with the rsync bash script... and prepare the instruction for each user inside his account how to transfer data using auth keys.. etc Then we need to create the bash-script to works from our WHMCS with our plan. After all done, we need to make complete backup on each user on our server to our node server and make sure to have a full restore of our clients if we face any HD failer in feature. -------- Please don't spend your time with me if you not expert in backup using Rsync technology !es, and with Unix system using the specs above! Any recommendation would be appreciate it