Well, you alwasy need to backup your SCCM, because…you never know when the sky will fall. Just like me, I never thought our SCCM server never boot up again, it when to a loop just after X-mas, it was not funny at all.
After you setup you SCCM, please go to Site Maintenace, and set up your site backup Schedule. I am not going to write a step by step instruction here, because you can just google it. 🙂
Prajwal Desai already write a blog about it. read it yourself. 🙂