Ask The Perf Guy: What’s The Story With Hyperthreading and Virtualization?

There’s been a fair amount of confusion amongst customers and partners lately about the right way to think about hyperthreading when virtualizing Exchange. Hopefully I can clear up that confusion very quickly. We’ve had relatively strong guidance in recent versions of Exchange that hyperthreading should be disabled. This guidance is specific to physical server deployments,…


Ask the Perf Guy: How big is too BIG?

We’ve seen an increasing amount of interest lately in deployment of Exchange 2013 on “large” servers. By large, I mean servers that contain significantly more CPU or memory resources than what the product was designed to utilize. I thought it might be time for a reminder of our scalability recommendations and some of the details…


Storage Validation in A Virtual World

Deploying Exchange can be a challenge. Particularly when you are all ready to validate your servers & storage with Jetstress and you realize that even though we suggest that you should always run Jetstress prior to going into production, you discover that we don’t support running Jetstress in a virtual machine on that fancy new…


Demystifying Exchange 2010 SP1 Virtualization

It’s been a few months since we announced some major changes to our virtualization support statements for Exchange 2010 (see Announcing Enhanced Hardware Virtualization Support for Exchange 2010). Over that time, I’ve received quite a few excellent questions about particular deployment scenarios and how the changes to our support statements might affect those deployments. Given…


Announcing Enhanced Hardware Virtualization Support for Exchange 2010

The Microsoft Exchange team is enhancing positioning by including additional supported scenarios regarding Exchange Server 2010 running under hardware virtualization software. As of today, the following support scenarios are being updated, for Exchange 2010 SP1, and later: The Unified Messaging server role is supported in a virtualized environment. Combining Exchange 2010 high availability solutions (database…


Upcoming Webcast: Best Practices for Virtualizing Microsoft Exchange

We’ve got a great webcast coming up next week to discuss recommendations for virtualizing Exchange server and the benefits of choosing Hyper-V + System Center as your virtualization solution. TechNet Webcast: Microsoft Virtualization Best Practices for Exchange Server (Level 300) Wednesday, Nov. 4 at 10am Pacific time Virtualizing business critical applications will deliver significant customer…


Microsoft Virtualization: Best Choice for Exchange Server

Virtualization continues to be a hot topic for many of you with questions raised around whether Exchange should be virtualized.  We started talking about this back in January (http://msexchangeteam.com/archive/2009/01/22/450463.aspx) and continue to recommend Microsoft virtualization technologies for these deployment scenarios.   For example, the Exchange team recommends Microsoft virtualization (Hyper-V + System Center) for customers who…


White Paper: Comparing the Power Utilization of Native and Virtual Exchange Environments

Is reducing or controlling the high cost of the power to run and cool computer hardware is a top priority for your organization? Are you considering server virtualization solutions to reduce your server footprint and the associated power and cooling costs? Because the virtualization of Microsoft Exchange servers rarely results in a reduction of physical…


Should You Virtualize Your Exchange 2007 SP1 Environment?

Introduction With the release of Microsoft Windows Server 2008 with Hyper-V and Microsoft Hyper-V Server 2008, a virtualized Exchange 2007 SP1 server is no longer restricted to the realm of the lab; it can be deployed in a production environment and receive full support from Microsoft. This past August, we published our support policies and…


Microsoft Virtualization and Licensing Announcements

Today Microsoft announced some significant changes to its licensing and support policies for applications in hardware virtualization environments. There are two key parts of the announcement worth highlighting for Exchange customers: Microsoft now supports Exchange Server 2007 SP1 running Hyper-V or hypervisors validated under the Microsoft Server Virtualization Validation Program (SVVP). Microsoft is waiving its…