The PowerExchange installation process allocates three active log data sets with minimum size requirements. Use the information in this section to determine whether you need to increase the size of the data sets, and whether you should allocate additional log data sets. When you define your active log data sets, consider the system capacity and your change data requirements, including archiving and performance issues.

After the PowerExchange Logger is active, you can change the log data set configuration as necessary.

You must balance the following variables:

Configure the log data set based on the following factors:

The Logger format utility (EDMLUTL0) formats only the primary space allocation. This means that the Logger does not use secondary allocation. This includes Candidate Volumes and Space, such as that allocated by SMS when using a STORCLAS with the Guaranteed Space attribute.