Replication argh, which is better for this setup

Hi,
I'm a bit lost here would appreciate some input.
Assume it will be running 11g R2 Redhat or Oracle Ent Linux
This is the config
RAC1:
RAC
2 x Standard Edition, some sort of replication (small, couple of tables). both servers are identical just there for redundancy.
RAC2:
RAC
2 x Standard Edition, some sort of replication (small, couple of tables). both servers are identical just there for redundancy.
I don't know much about data guard but it sounds like its the best way to go for Oracle?
I would like to only have 1 x SE at each RAC, is this possible?
Any guidance would be great, thank you.

Hi,
Dataguard is not Avl. for SE.
Check this Ref Doc:Getting Started with Data Guard
2.3.2 Oracle Software Requirements
The following list describes Oracle software requirements for using Data Guard:
Oracle Data Guard is available only as a feature of Oracle Database Enterprise Edition. It is not available with Oracle Database Standard Edition.
HTH

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