I'm hosting ISPConfig on a Cloud Server at Hetzner. Is it safe if we resize the Cloud Server? For instance Hetzner allows you to upgrade your Server, they take it offline and let you expand the drive as you go along, etc. Is this safe for ISPConfig? It won't confuse the quotas, etc?
ISPConfig doesn't know or care what size your file system is. For quotas I don't think there is anything needed, as they track used space/inodes, not the total, but you could run checkquotas after the resize as an extra measure.