Williams, Heterogeneous Data Guard Configuration is supported starting with 11g which allows a mix of Linux and Windows primary and standby databases in the same Data Guard configuration. Regards, Jaffar On Nov 19, 2007 11:19 PM, William Wagman <wjwagman@xxxxxxxxxxx> wrote: > Greetings, > > We are looking at implementing dataguard, 10.2.0.3.0 Enterprise Edition > Oracle on Red Hat Linux. The question has been raised as to whether the > O/S version must be the same on the primary and the standby. If the > primary were to run RHEL4 and the standby were to be running RHEL5 would > that create problems? I have not found any documentation indicating a > requirement that the O/S be at the same release. > > Thanks. > > Bill Wagman > Univ. of California at Davis > IET Campus Data Center > wjwagman@xxxxxxxxxxx > (530) 754-6208 > -- > //www.freelists.org/webpage/oracle-l > > > -- Best Regards, Syed Jaffar Hussain Oracle ACE 8i,9i & 10g OCP DBA http://jaffardba.blogspot.com/ http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID:126 ---------------------------------------------------------------------------------- "Winners don't do different things. They do things differently."