Creating a User Defined Collection

The UDC definition wizard entails the following defining windows:

• Identification - Record here the referential Name and description parameters.

• Dimension - Limit the set of historical data to be stored and retrieved by clearing from check-box selection those dimensions that are not of interest for this UDC. After the setup is executed, modifying the dimension may cause data loss.

• Filters - Limit the set for which historical dimension data is to be collected to that which includes up to three domain instances.

• Scheduling - Specify here the time range, frequency and collection duration of historical data to be gathered. Limit the time range to only the period of interest because, as with dimensions, the time range size determines the extent of middleware resource requirements.

• History Model - UDCs also require data storage by StealthCollect in both middleware data files and the performance repository, with data granularity a function of allocated disk space. Define here the general level of collection or use the Custom option to configure the data collection pyramid. Separately, accept the default data directory or specify an alternative location.

• Summary - Review the UDC parameter settings displayed here as subsequent changes may cause data loss.

To access the defining History Configuration dialog feature

 

• (From the Performance Analysis tree view) Right-click in the left pane History mode and select New User Defined Collection in the displayed action item menu.