Short-term historical data
Short-term historical data collection involves periodic sampling of selected attribute groups to support investigation of problems and performance analysis of data that is a day old or less.
Short-term historical data is stored in the persistent data store on z/OS systems or in
files on distributed systems. Short-term historical data comprises data that is stored
for 24 hours or less. However, the amount and age of short-term historical data that
OMEGAMON® for Storage keeps, depends on such factors as:
- The number of resources that are being monitored
- The amount of disk space that is configured for use by the persistent data store
To find out how to configure the collection of short-term historical data for the persistent data store, see the appendix of the IBM Z OMEGAMON AI for Storage: Planning and Configuration Guide.
Short-term historical data is used to investigate and determine the nature of problems that arise.
Tip: Use PARMGEN to configure datasets that persistent data store uses.