How to implement RAC

I want to implement RAC. I have one server machine with oracle 8i server installed. Please some one guide me how to implement the concept of RAC, I would be thankful if you can provide step by step procedure for implementation of RAC.

This is a extensive subject.. no thread or discussion can complete the process. I would suggest you should start with Oracle documentation, the admin guides, installation guides etc and other documents you can find on OTN.
You should also consider joining the RAC SIG at www.oracleracsig.org and gain knowledge about the subject.
Once you have completed the basics and if you have questions feel free to post your questions and at which point you can get some help with answers or issues you may have encountered.

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