Persistent data store

Review information about the persistent data store, which is used for storing historical data.

The persistent data store (PDS) is a set of files used for storing and retrieving near-term historical data.

Important: Two versions of the persistent datastore, PDS V1 and PDS V2, are currently supported. The change from PDS V1 to PDS V2 occurs automatically for the monitoring agents with the initial startup of a Tivoli Enterprise Monitoring Server or a Tivoli Enterprise Monitoring Agent after the application of PDS V2 maintenance. Moving to PDS V2 is recommended. For more information, see PDS V2 activation.

Note: The abbreviation for the OMEGAMON persistent data store (PDS) is distinct from and should not be confused with the abbreviation for the z/OS partitioned data set (PDS).