I use Beyond Compare to sync files from my laptop to my NAS which is a QNAP (my laptop is Linux Mint). It is incredibly slow, to the point that it is driving me crazy. Admittedly, I have lots of large files on my laptop that I move around frequently, so that may just be how it is. I do have my laptop setup to sync to my phone with Syncthing, and it seems like my phone is always up-to-date and in sync with my laptop. But of course it is syncing in, I guess, “real time” as opposed to a Beyond Compare backup which does everything only when I tell it to when lots of changes have already been made at the end of the day. Is it possible to install Syncthing on QNAP? Perhaps that would make things a bit faster, although I’ve always had a hell of a time trying to install something that isn’t a proprietary app from their store. Anyway, any suggestions are welcome.
EDIT: Plugging into ethernet instead of syncing over wi-fi helps speed things up a bit, but not as much as I would like.
Sync isn’t backup for a few reasons. Unless you are taking system snapshots, you may be left with files without any way to restore your system. That’s probably okay if you are just syncing data files. But also it only protects you from catastrophic failure since your last sync. If a file gets corrupted, the corrupted file will get synced and your backup is of no use in recovery.
OP might also have something else in mind as this isn’t my area of expertise.
Ok, I see: yes, I am set up to do weekly snapshots with Timeshift, and the syncing is for data files. As for corrupted files, I’m not so sure about that; I don’t believe I’ve ever had a problem with this, but . . . 🤔