This works without any problems if you configure it correctly

Hi Robzer
I would generally only back up all my user data (images, data) to an external NAS. I can't say whether this works 1:1 with a complete partition. So far I have only made backups with special tools. 1st HD to 2nd HD.
It all depends on the operating system. There are various possibilities (;-)
See also
https://www.ubackup.com/de...
or https://www.ubackup.com/de...

To be honest, I don't see the point of using a nas to make an image of a private bone. You have to use it as a data server. For one-off images an external disk is enough as long as you have separated the dats from the system.
I hope I've answered your question.
Sincerely

Yes, this is possible with Synology. see https://www.synology.com/de-de...

Hi I would like to use a 2x4TB NAS for backup on my local network of 3 PCs: <br> -2 recent PCs, one of which is a gaming PC, and a workstation<br> -and an old workstation PC<br> knowing that the OS of these PCs are 512GB,<br> 1TB, <br> and for the old PC I can't remember but it's let's say 512GB.and for the old PC I can't remember but it's say 512GB <br> Will the Synology DS223 allow me to back up my images of my disks, so that if one of the SSD master C: SSDs fails, I can rebuild a replacement drive without difficulty? <br>I have a decent level of IT knowledge, but I must admit that I have never taken the time to understand how to carry out back-ups properly.<br>Thank you in advance for your help.