This document discusses infrastructure requirements for SharePoint 2013 and enterprise search. It recommends having 12 virtual machines each with 8 CPU cores, 32GB RAM, and storage space allocated. The infrastructure would need to support 10 queries per second across 40 million documents stored in SQL Server databases. Setting up such an infrastructure requires funding, time, documentation, networking, and automation. Performance can be improved by adding more CPU, memory, optimizing disk I/O, load balancing, tuning cache, and managing antivirus software.