Follow these steps:
Log into Enterprise Manager.
Navigate to the Cluster ASM Home page. Provide the credentials for the ASM administrator.
Navigate to the Performance tab.
In the Cluster ASM Performance page, view cluster-wide performance metrics. View charts for Response time, Throughput and Operations Size and Operations in Seconds. View cumulative data tables with values for Average Response Time, Average Throughput, Total I/O Calls and Reads and Writes.
Select each ASM instance in the Member Instance Performance Link table and view the charts and tables for these instances. You can switch the Performance page for member instance by selecting another member instance from the dropdown list.
View similar information for ASM instances, database clients, disk group, and disk level performances.
About Real Application Clusters
Viewing All Targets of a Cluster
Enterprise Manager Information Roadmap
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