If you want to size this type of architecture you must read the BI rules and definitions here
Sizing Methodology
The major parameters for sizing business intelligence technical architecture are : Concurrent queries launched by users (low, medium, high), Processor (type, frequency), Operating System (name, version), Tools Analysis and Databases (name, version), Data (raw data volume, usesable data volume), Data flow (size, frequency, timing, complexity, period) and aggregates building.
Architecture Design example
• Users activity in different time zone (ex: France, Japan, Brasil, Australia...)
• Standardization : best practices ITIL v3, servers and storage consolidation
• Virtualization : servers virtualization (Solaris Containers cloned by country) and storage virtualization Sun StorageTek 9990V
• Dynamic infrastructure : more flexibilty for dynamic user and data integration. Resource management with Solaris Resource Manager (SRM) for data integration vs users activity performance. Data replication for high availability.
• Gouvernance : Performance and cost management


