Install SAP cluster ORACLE RAC and SCS

I need to install SAP ECC SR3 in an environment in cluster.
O.S: Linux Red Hat B.D: Oracle 10.2.0.4
I am trying to follow the official manual of SAP, but this very confused, would like the you aid.
The environment is the following one:
2 machine (Node A and Node B)
1 area of storage shared for datafiles of Oracle. /oracle/PRD.
It goes also to be installed ORACLE RAC.
My doubt is the following one: Which the steps that I have that to follow so that everything of certain.
When I go to install ORACLE RAC? Before, later or during the installation of SAP?
I go to need to install the central office services (SCS) in the two servers? Or only in one?
Somebody could help with some document or detail me of what I go to need to make?
Please!
Thanks!

Hi Alan,
Please go through this link [http://www.oracle.com/newsletters/sap/docs/wp-o10g-rac-config-unx.pdf] Hope this should help you.
Thanks and Regards,
Damanaidu J

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Edited by: P. Forstmann on 19 nov. 2010 19:11
Edited by: P. Forstmann on 19 nov. 2010 19:11

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