REQ: Replication info

The only info I've seen in the Informix Admin guides is in regards to a very simple system of having a primary (read/write) and secondary (read only) server coupled by keeping the secondary in a constant state of logical-log back-up. Does Informix (7.1) have other possibilities for replication? Specifically, I would like to know if there is any documentation for setting up a system with multiple updatable replicated sites. Please e-mail if you know of any such information sources. -- Chris Johnson Ex-Physics & Chem teacher bytor@skypoint.com