You already know the Cluster Health Advisor (CHA) if you are familiar in troubleshooting Oracle RAC Problems.
- It detects cluster and database problems.
- It is started automaticaly and full integrated in Enterprise Manager Cloud Control (EMCC) incedent management.
- Here you find a good youtube video about „How it Works and How to Use It„
Now you can get a standalone, interactive, real-time Grafical User Interface CHA (CHAG)
- for advanced customer use with Oracle RAC Database 12.2+ / GI 188.8.131.52+ (backport not planed for 11g)