The controller maintains limited data for graphing, while AirWave (the network management software for Aruba) is designed to maintain data for trending analysis, reporting, and troubleshooting. Other added benefits from AirWave: better visibility of network behavior, a single point for making/testing/rolling out configuration changes, event driven alerts, user location tracking (VisualRF), a more flexible classification system for rogue AP intrusion/detection (RAPIDS), and several other tools meant to tackle proactive and reactive client experience troubleshooting. Check with your Sales Rep to see a demo or get an evaluation copy of AirWave.