Expert Oracle Exadata - Parent Directory

CHAPTER 12 MONITORING EXADATA PERFORMANCECellCLI> LIST METRICDEFINITION CL_CPUT DETAIL; show metric description and detailsname:CL_CPUTdescription:"Percentage of time over the previous minute that the systemCPUs were not idle."metricType:InstantaneousobjectType:CELLunit: %CellCLI> LIST METRICCURRENT CL_CPUT;CL_CPUT enkcel01 5.3 % list the latest metric snapshot valueCellCLI> LIST METRICCURRENT CL_CPUT DETAIL; list latest snapshot in detailname:CL_CPUTalertState:normalcollectionTime:2011-05-16T09:31:53-05:00metricObjectName: enkcel01metricType:InstantaneousmetricValue: 5.3 %objectType:CELLCellCLI> LIST METRICHISTORY CL_CPUT; show historical metric snapshotsCL_CPUT enkcel01 2.2 % 2011-05-06T12:00:46-05:00CL_CPUT enkcel01 2.4 % 2011-05-06T12:01:49-05:00CL_CPUT enkcel01 2.1 % 2011-05-06T13:00:15-05:00CL_CPUT enkcel01 0.3 % 2011-05-06T13:01:15-05:00CL_CPUT enkcel01 1.4 % 2011-05-06T13:02:15-05:00CL_CPUT enkcel01 0.3 % 2011-05-06T13:03:15-05:00CL_CPUT enkcel01 1.2 % 2011-05-06T13:04:15-05:00CL_CPUT enkcel01 1.2 % 2011-05-06T13:05:15-05:00Accessing Cell Metrics Using the Grid Control ExadataStorage Server Plug-InIf you have configured the System Monitoring plug-in for Exadata Storage Server, you will be able to seesome cell-level metrics, reports, and charts in Grid Control. The plug-in installation is out of the scope ofthis book, but it’s well documented in the plug-in’s installation guide.Currently the Exadata Storage Server monitoring plug-in gives only some basic metrics to monitorand is not very sophisticated for systematic cell performance troubleshooting or monitoring.Nevertheless, it will give you a more convenient way for monitoring cell statistics changing over time,compared to running CellCLI’s list metrichistory commands manually. When you initially navigate toa storage cell target (or group of cells) in Grid Control, you may not see any charts defined there yet. InFigure 12-10, we have created a group called “cells” from the Exadata Storage Server targets andnavigated to the Edit Group page. This is where you can add new charts for collected cell-level metrics.396