White Papers
Table Of Contents
- 1 Introduction
- 2 Generic Recommendations
- 3 Test Environment and Methodology
- 4 Scalability and Performance tests for Power Manager 2.0
- 5 Addition of devices and groups in Power Manager
- 6 Metric Collection
- 7 Power Policy (Power Capping)
- 8 Emergency Power Reduction
- 9 Alert Thresholds
- 10 Importing Physical Groups and Device Association from a CSV file
- 11 Plugin Actions (Install, Disable, Enable, Uninstall)
- 12 Longevity Test Results
- 13 Troubleshooting
- 14 Conclusion
- 15 Technical Support and Resources.
Metric Collection
13 Benchmark the Performance, Reliability and Scalability of Dell EMC OpenManage Enterprise Power Manager
2.0 in Data Center Environment
6 Metric Collection
Metric details are captured from monitored servers, chassis, PDU’s and virtual machines at regular intervals
of 15, 30, or 60 minutes as per the configured Power Manager Settings. This metrics is represented through
the Metrics and Monitoring History graphs:
• Power History
• Thermal History
• CPU Utilization
• I/O Utilization
• Memory Utilization
• System Air Flow History
View this historical data in Power Management and Monitoring tab in Device Details section for Individual
Devices and in Group Details tab for Static and Physical Groups.
6.1 Configuration Details and Generic Recommendations
6.1.1 Configuration Details
Metric Collection is supported on Individual Devices, Static Groups and Physical Groups in Power Manager.
Metric gathering starts when the devices and groups are added to Power Manager or when the supported
device types are Associated to a Rack Physical Group. The default setting of Metric gathering interval
automatically changes to 30 minutes when more than 1000 devices are added to Power Manager.
6.1.2 Recommendations
After analyzing the test results, following are the recommendations for Metric Collection:
• It is recommended to create Static and Rack Physical Groups with not more than 40 devices for
Metric Collection to occur seamlessly.
• Make sure that the target devices are reachable to Power Manager and is responsive with respect to
the management protocols. Higher number of unresponsive devices can have impact in metric
collection due to the number of attempted retries.
• In case there are high number of unresponsive devices, it is recommended to have Metric gathering
interval set to 60 minutes which will help avoid performance deterioration.
Note: The test results captured in all the following sections is for four hours of Metric Collection and the
graphs are plotted for the CPU and Memory utilization of metric collection service.