Dell InsightIQ 4.3.0.0 User Guide

Configure the File System Cache Performance report

You can view file system cache levels, throughput, and hit rate within the File System Cache Performance report.

1. Click the Performance Reporting tab.
2. On the Live Performance Reporting page, click the Cluster drop down and select the cluster that you want to monitor.
3. Click the Report Type drop down and select File System Cache Performance.
4. In the Date Range fields, select a range to display, then click View Report.
   The date range should include the entire period of time when the cluster was behaving unexpectedly. The default setting is to view the last hour of data.
   The modules in the report are now populated with data for the cluster and date range you selected.
5. In the Overall Cache Hit Rate module, check the rate of L1, L2, and L3 cache during the time in question.
   NOTE: If L3 cache is enabled and has a higher hit rate than L2 or L1 cache, cluster performance might be affected.
6. In the Overall Cache Throughput Rate module, select L3 Starts in the breakout dropdown and click the Node breakout.
   To remove focus on a breakout, click the None breakout.
   On the left side of the module, you can now see a list of all nodes that were requesting info from L3 during the date range you specified. The node at the top of the list made the most requests to L3.