IBM DB2 Support has put out the following developerworks page:
IBM DB2 High Availability Disaster Recovery (HADR) Simulator
This simulator will help you to better tune DB2 HADR and the network settings with out impacting current performance on the system. It is recommended you run the simulator when the systems are most active.
In addition you can use the db2flushsize.pl (perl script) against the largest log files you have to find the largest flush size. Once you have the... [More]