Data sources
Two situations should be distinguished:
- Preallocated data sets
In this situation, the reporter retrieves data only from the preallocated data sets to the local reporter session, independent of any gatherers that are running on the various systems. It is possible to preallocate data sets created on different systems. The Data Index shows all data available in all the data sets, with the respective system-ID.
- Gatherer Session - no preallocated data sets
Here, the Data Index shows the data available through the gatherers running in the sysplex. For each gatherer, this may be the in-storage-buffer and, if data-set support is active, the data sets on which the gatherer is recording.