Finally Microsoft Posted the official Whitpaper on OCS 2007 R2 & Virtualization.
Before you jump in the air be aware that virtualization is limited to some workloads only ... (IM/Presense/Groupchat)
Office Communications Server 2007 R2 can be deployed onto Windows Server 2008 Hyper-V, or onto any virtualization solution that is a certified partner through the Server Virtualization Validation Program (SVVP) certified partners for the following workloads:
- Presence
- IM (including conferencing, remote access, federation, and Public IM Connectivity)
- Group Chat
This whitepaper:
- Identifies which server roles are supported in a virtualized environment
- Provides guidance for scaling users and workloads in a virtualized environment
This document describes the results of a series of configurations that were run in a Hyper-V environment to validate that Office Communications Server on Hyper-V provides stable performance and scalability for production use.
You will also see information in the doc explaining why other workloads are hard to Virtualize:
Enterprise Voice, Remote Call Control (RCC), Response Group Service, dial-In conferencing, audio/video conferencing, Web conferencing, and Communicator Web Access desktop sharing workloads are not supported in a virtualized Office Communications Server 2007 R2 deployment. This occurs because of several factors, including packet loss, delay, jitter, and clock skew. These factors impact the quality and performance of real-time media when virtualized. However, these factors do not impact other workloads such as instant messaging and presence because these workloads are less susceptible to delay and can use the natural retry mechanisms in the SIP protocol and the underlying TCP transport.
Download:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=0a45d921-3b48-44e4-b42b-19704a2b81b0
Posted
05-13-2009 3:34
by
Johan Delimon