If you have a MultiSite configuration, you must restart and verify all synchronization servers and Rational® Shipping Servers in your configuration. Then the sites can synchronize their databases periodically.
When you upgrade the working master site (the first site that you upgrade), export any changes you made with synchronization packets. When you upgrade each secondary site, import those packets from the working master. If any test fails, diagnose and fix the problem, restart the synchronization and Rational Shipping Servers, and repeat the test.