Hi, Oracle has an MAA with http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10gR2_Ro admap.pdf However, one of our clients would like to have active-active replication between remote sites, so that each site can be used. Have you done this? What software did you use? Also, what are the limitations on schema, if any to do this? Thanks in advance, -- Pradeep Pradeep Chetal Sr. Director - Infrastructure Architecture Mformation Technologies Inc. Switchboard: +1 732 692 6200 Visit WWW.MFORMATION.COM and see how the MFORMATION SERVICE MANAGER can help you to transform your business Please consider the environment before printing -- //www.freelists.org/webpage/oracle-l