I came across a couple interesting packages recently for both system and app monitoring scenarios.
Their “Beautiful Dashboards” slogan says it all – they have a free version of their DevOps Dashboard system for monitoring up to 3 servers. Among lots of cool stuff, I especially like how they show historic ranges in the background of charts, and flag anomalies visibly.
DataWatch / Panopticon
I met some of the DataWatch team at the recent Data Viz Summit and was impressed with their tutorial on using their dashboard building tools. It all looked good and was easy to build and use – also the ability to drill-down was quite powerful as was their ability to attach to streams and perform playback.
Tons of demos at http://panopticon.com/demos