Customize VTAM for Db2
For Db2 to provide the best performance for distributed database systems, you probably need to customize VTAM®.
Before you customize VTAM, consider the communication needs of your Db2 connections. Because you could allow your Db2 subsystem to send large amounts of data through the network, reexamine the capacity of your existing network. In some cases, portions of your existing network might need additional communication hardware to provide the required capacity.