Re:Zenoss (Score 1)

I implemented Zenoss for Application, Systems and Network monitoring of close to 1000 devices. We have the collectors distributed across each colocation, and multiple in some colo. My project was so successful that my companie's CTO committee implemented it across all of our other business units, and none of them have found anything that it cannot monitor. If there's something that you can't do, a plug-in can be written. It's replaced our inventory system, IPAM solution (lightly), application, network and systems monitoring systems, and due to the "device class" architecture we've simplified deployment time for monitoring, and inforced consistency in monitoring across the board. We do pay for support, which we've found to be a requirement.