Grab it here:
http://www.microsoft.com/whdc/system/sysperf/Perf_tun_srv-R2.mspx
This guide describes important tuning parameters and settings that you can adjust to improve the performance of the Windows Server 2008 R2 operating system. This guide describes each setting and its potential effect to help you make an informed decision about its relevance to your system, workload, and performance goals.
This paper is for information technology (IT) professionals and system administrators who need to tune the performance of a server that is running Windows Server 2008 R2.
This information applies to the Windows Server 2008 R2 operating system.
What’s New:
• Throughout the paper – Updated the references to the Remote Desktop Session Host (previously called Terminal Server); various minor edits.
• "Choosing a Network Adapter" – Fixed a typo in the RSS registry entries.
• "Performance Tuning for File Servers" – Added MaxMpxCt parameter information; updated the default maximum payload for the SMB redirector to 64 KB per request; added MaxCmds parameter information.
• "Performance Tuning for Remote Desktop Session Host" – Added information about the settings used when you choose a connection speed.
• "Resources" – Provided additional resources.
Included in this white paper:
• Choosing and Tuning Server Hardware
• Performance Tuning for the Networking Subsystem
• Performance Tuning for the Storage Subsystem
• Performance Tuning for Web Servers
• Performance Tuning for File Servers
• Performance Tuning for Active Directory Servers
• Performance Tuning for Remote Desktop Session Host (formerly Terminal Server)
• Performance Tuning for Remote Desktop Gateway
• Performance Tuning for Virtualization Servers
• Performance Tuning for File Server Workload (NetBench)
• Performance Tuning for Network Workload (NTttcp)
• Performance Tuning for Remote Desktop Services Knowledge Worker Workload
• Performance Tuning for SAP Sales and Distribution Two-Tier Workload