GitLab hosts hundreds of thousands of open source software projects, and had massive data loss due to a sysadmin error. They didn’t have working backups:

So in other words, out of 5 backup/replication techniques deployed none are working reliably or set up in the first place.

It’s not enough to “have a backup”. You need to know your backups work. I’ve been preaching this for fifteen years now.

Step One: Back up your data.

Step Two: Test your backups.

Check your backups now, people.