SCCM backup

Disks
c - system
d - SQL bin\logs
e - sccm data (packages, apps, etc)
f - sql database

Administration \ Site configuration \ Sites \ Site Maintenance
Backup Site Server to disk E:

Next step is to use script (OS task scheduler) to copy this backup and logs to another server
https://drive.google.com/open?id=0B-Myn42Tc3zSRWQwcXdIOElpX0U
At the end of the script there is another script
https://drive.google.com/open?id=0B-Myn42Tc3zST2VJMF9DcEFBNnc
to delete old backups

Set system state backup using wizard or wbadmin