Best free (or cheap) software for mirroring/backing up local drives to network

[dtokez]

Hi all,
I need to backup a local drive to my xpenology server. Ideally it would be a real time mirror, or something that I could set to run fairly often.

Till now, I have been using Microsoft Synctoy which sends the files over to the NAS on windows boot. This isn't ideal. I have been playing around with something called 'syncback' which seems to have all the bells and whistles but it keeps giving me an error and won't delete files on the destination for some reason evn if they are deleted from the source.

Anyone know of any good alternatives?

 

[dtokez]

Have you got syncback setup to not delete the files until they were deleted for example 7 days ago.
Syncback can do this and also delete straight away.

I'm trying to delete straight away (I think) but get the error that 'Too many files would be deleted' which I can't sus out.
I have fiddled with the settings a fair bit, namely the decisions and the copy/delete sections to no avail so given up for now :/

If you could shed any light based on the profile settings that would be great! Cheers https://imgur.com/a/fVI4JhF