Oracle BI Applications performance recommendations & Project example

Oracle offers a technical whitepaper to guide customers in planning their technical hardware and infrastructure to deploy the Oracle BI Applications suite. This Whitepaper is available via Oracle Support and from the following link:
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For Hardware requirements the Guide recommends the following specification depending on Project size for the Database & Oracle BI Server:
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For our current Siebel Marketing and Marketing Analytics Project we have the following

data volume (Volumetric)
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workloads
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To facilitate this data volume and workload, the Project uses the following Hardware specification:
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