SAP Netweaver CE 7.2 AS Java Cluster

Hi All,

We are planning to install SAP Netweaver CE 7.2 as java system cluster server .Below are the questions in my mind Please calrify me.

1) We need to do any settings OS level

2)can we do it directly we have 2 physcial servers they are having diffrent I.P s is possible to install cluster?

3)after the installtion can we go for clustering is it possible.

4)What are the prreq for to make clsuter server?

Please suggest and provide your valuble inputs.

Thanks