Running a large number of sites comes with various challenges. The most difficult task I have when managing the dozen or so sites I run is making sure they are up and running.
I currently use a VPS server and luckily the VPS host I use has a very nice set of admin tools to help with monitoring server status. It has a watchdog to make sure the server is powered on. It also tracks CPU usage, disk I/O, and also incoming and outgoing traffic. The system will send alerts to my phone if any of these go over a certain threshold that I set in the control panel.

Tags: