for moodledata, that's right, and it's why I've asked this question. I would ideally like versioned, incremental backups, daily for 2 weeks.
a rudimentary way I can think of this would be e.g.
Say, cron job runs on week 1 to /backupserver/week1
cron job on week 2 to backupserver/week2/
repeat every week - and these two directories have the current and former week.
The thing is, I would like it to run daily, space-wise, there's not too many days that I could keep a number of consecutive backups without looking into some form of incremental backup. I'm not sure what solutions would be good for a linux server. If you have any suggestions that would be great.
Moodledata doesn't particularly concern me since they're just static files and the VM snapshot backup should capture them alright (unlike, perhaps, the mariadb db - and supposedly keeps daily backups for 3 months!). But I would like something to enable a quick restore if I'm woken up in the middle of the night!