This is what I'm talking about (see screenshot below). Count the number of virtual machines in this backup.
And one of them is an Exchange Server for about 20 people and another is a SQL Server database server that aggregates data from three dozen other databases every night into one SQL Server database using SQL Server Integration Services. In other words, data changes.
Yet this backup took 12 MINUTES 25 SECONDS. This is how it's DONE, people. And this is fully automated both onsite and OFFSITE backup (published to the cloud for a monthly fee). This backup runs every two hours.
Not only was the backup completed, but if you'll look at the print out database transaction logs were truncated.
My recommendation is to virtualize all servers using Windows Server 2016 Hyper-V and get Veeam to handle backups.
With Windows Server 2012 Standard through Windows Server 2016 Standard, you get virtual licensing for two guests.
JamesNT