Modifying parameters for data collection

You can modify the default parameters for the collection of data sets to reduce demand on system resources and improve performance.

In particular, you can reconfigure data set members or data set parameters:

That regulate data collection frequency such as interval parameters
That exclude volumes from data set collection
That record and write data to the persistent data store
That record statistics about direct access storage devices
That regulate data set monitoring

You use PARMGEN and the reference information in the IBM® OMEGAMON® for Storage on z/OS® Parameter Reference to modify data set members and parameters.

Attention: If you update data set parameters manually, the changes that you make are overwritten the next time you use PARMGEN to update parameters.