I was busy configuring the backup using rsync to an other location.
As soon as I saved the settings the whole module became unavailable. Taking the whole front end with it.
Everything keeps on working. Meaning internet connections/ samba etc.
But I can't reach the x.x.x.x:8443 dashboard. It just keeps on loading until I get an 504 error message.
After like an hour everything is back up again. I can log in, see every module, except when I click on the backup module the whole site is down again for an hour.
I can still log in with putty. CPU load is next to zero. Just like the I/O (using iotop).
Any thoughts what can be up?