Sun Java System Web Server 7.0 Update 3 Performance Tuning, Sizing, and Scaling Guide

Connections

This number shows the current JDBC connections, including both free and busy connections.

Tuning – This setting cannot be tuned, but it is a good indicator of recent pool activity. If the number of connections is consistently higher than the minimum number of connections, consider increasing the minimum number of connections to be closer to the number of current JDBC connections. To change the minimum connections for a JDBC resource through the Admin Console, on the Edit JDBC Resources page, edit the Minimum Connections setting. To change the JDBC resource's minimum connections through the command-line-interface, use wadm set-jdbc-resource-prop and change the min-connections property.