Short-term historical data

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 on z/OS 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®OMEGAMON for Storage on z/OS: Planning and Configuration Guide.

Short-term historical data is used to investigate and determine the nature of problems that arise.