How to make a backup of a virtual machine?

Question

Backup

Hello, I have a small server with the Microsoft Hyper-V Server operating system installed and two virtual machines deployed on it that are accessed via a local network to work with 1s and a consultant plus. Please tell me how you can make a reliable backup of the entire system or entire virtual machines separately, so that you can restore a fully functional machine in the event of a breakdown or replacement of the hardware.
The internet is full of instructions for working with hyper-v, but they usually talk about the windows component, not a separate OS, and create normal restore points (not sure if they will work in my case).
If anyone faced such a task, tell me what software should be used or in which direction to look.

Answer 1

Veeam Backup, for example.
Well, in general: https://habr.com/ru/post/312112/

Answer 2

The dumbest way is to just copy the files.
More sophisticated is this utility
https://www.veeam.com/hyperv-backup-solution.html?...
As another option, a standard machine backup.