Expert Oracle Exadata

C H A P T E R  12

Monitoring Exadata Performance

By now you have learned about the key Exadata performance features and the related performance metrics. Let’s see how we can use these for everyday tasks. We will look at standard tools available for database-layer and cell performance monitoring, and how to interpret their output.

Oracle Database and the Exadata cells provide a huge variety of different metrics, but before monitoring any metrics, you should ask yourself why you are monitoring them. Additionally, you should know what your action would be if a metric crosses some threshold. This leads to the follow-up question: which exact threshold should prompt some action from you—and why? In other words, you should know what are you trying ...