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10.4.4.3. Cluster Quality of Service - Virtual Machines

The Cluster Quality of Service - Virtual Machines report shows the amount of time virtual machines sustain load above a specified threshold for a given time period. Load is defined in terms of CPU usage percent and memory usage percent. The following parameters must be provided to run this report:
Table 10.11. Cluster Quality of Service - Virtual Machines Parameters
Parameter Description
Data Center The list of options for the Cluster parameter includes only clusters in the selected data center. The options list shows only data centers that contain clusters.
Cluster The report includes only virtual machines in the selected cluster. The options list shows only clusters in the selected data center. If All is selected, the report includes all virtual machines in the selected data center.
VM Type The report includes only virtual machines of the selected type. The options list shows only virtual machine types present in the selected data center and cluster. If All is selected, the report includes all virtual machine types.
Period Range The report is for the period range selected. Monthly reports cover a single month. Quarterly reports cover a three-month quarter, beginning on the month specified in the Dates parameter.
Dates The report covers the selected period range, beginning on this date. For a Monthly period range, the selected month is used. For a Quarterly period range, the quarter is determined as beginning on the selected month.
CPU Threshold The report measures quality of service as the amount of time virtual machines sustain load above a given threshold. The CPU Threshold defines a load threshold as a percentage of total CPU usage on the virtual machine. The load is measured by one-minute samples, averaged over an hour. The report therefore shows sustained load, not short term peaks. A CPU Threshold of 60 per cent is a suggested starting point to produce a meaningful quality of service report.
MEM Threshold The reports measures quality of service as the amount of time virtual machines sustain load above a given threshold. The MEM Threshold defines a load threshold as a percentage of total memory usage on the virtual machine. The load is measured by one-minute samples, averaged over an hour. The report therefore shows sustained load, not short term peaks. A MEM Threshold of 60 per cent is a suggested starting point to produce a meaningful quality of service report.