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Cluster Healthy Monitor (CHM or IPD/OS) Introduction and FAQ

edited Feb 7, 2013 9:59PM in Database - RAC/Scalability (MOSC) 2 commentsAnswered

RAC Support Team has published the following notes:
Introducing Cluster Health Monitor (IPD/OS) (Doc ID 736752.1)
Cluster Health Monitor (CHM) FAQ (Doc ID 1328466.1)

The Cluster Health Monitor collects OS statistics (system metrics) such as memory and swap space usage, processes, IO usage, and network related data. The Cluster Health Monitor collects information in real time and usually once a second. The Cluster Health Monitor collects OS statistics using OS API to gain performance and reduce the CPU usage overhead. The Cluster Health Monitor collects as much of system metrics and data as feasible that is restricted by the acceptable level of resource consumption by the tool.

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