Well this all depends on your setup.
Do you have a VM or physical machine?
Do you have a standalone ePO and standalone SQL-server or are they split?
Do you have one ePO or a cluster?
For virtual Environments we totally rely on Veeam, that as all the backup-tasks out of the box, including consitent database backups.
If you go by foot, you can go to: Server-Tasks --> under actions select "Snapshot Server Command"
For the SQL-server you would have to work with maintenance-plans to do the backups if possible or with powershell.