This example shows how you can create your own KPI from an existing KPI to monitor all active users on a system. The existing KPI 'USER_CNT_SER' collects information about the number of active users per each server. You can use the calculation function to calculate the sum of all servers of the source KPIs.
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- Go to the Settings > Monitoring settings (or transaction /DVD/MON_CUST).
- Click New entries (F5).
- Fill in all required fields for the custom KPI as displayed in the figure
- KPI name: "ZCUSTOM_USR_CNT_SYS".
- KPI collector: "/DVD/MON_CL_COLLECTOR" (standard collector which is used for creating a KPI from an existing KPI).
- Set Collected on to "Central system". The calculation functions may be performed only on the central system, as on the central system are available all the collected values for other KPIs.
- Use the calculation function "Sum from all servers".
- Fill in Calculate value from 1st KPI: "USER_CNT_SER".
- The other mandatory fields were filled as on the figure. For a complete description see Define How a Custom KPI is Displayed(DI-1904) How to Create a KPI from an Existing KPI.
Save the created KPI (CTRL + S).
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