Windows server 2008 r2 standard hyper-v limitations free

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Windows server 2008 r2 standard hyper-v limitations free. Windows Server 2008 R2 & Hyper-V Server 2008 R2 RTM Blog

 

Server consolidation continues to be the driving force behind virtualization and the fundamental reason is to reduce costs. In this economy, customers need to maximize their investments.

Green IT has been important the past few years, but we've seen an even greater focus in the last year. In addition, it doesn't matter how small or how large your business is, everyone pays a power bill , it's a constant cost, so anything we can do to reduce power use has an impact on everyone's bottom line. With Hyper-V R2, we continue to drive down power usage when servers are idle usually nights and weekends AND now we drive down server power usage even under load throughout the day through new enhancements like Core Parking, Timer Coalescing and more.

Bottom Line: Windows Server R2 continues to drive down power usage and lower power costs. Today, the majority of servers ship with up to 16 logical processors. However, our customers watch the industry closely and point out that AMD and Intel are continuing to increase core counts quickly. As our customers plan their capital investments over the next months, they want to make sure to invest in a virtualization platform today that will take advantage of the latest hardware capabilities tomorrow.

Hyper-V R2 is that platform. This provides performance improvements across the board when these processor capabilities are present. It also means that when folks decide to move up to larger servers with more counts Hyper-V R2 is ready out of the box. No core tax here. If you have older hardware without those capabilities, Hyper-V R2 will run just fine on those too. From a networking standpoint, Hyper-V includes significant networking improvements. These two technologies allows Hyper-V R2 to take advantage of network offload technologies so instead of a core on the CPU processing network packets, these packets can be shunted to the offload engine on the 10 Gb NIC which helps free up processor usage and improves performance.

Support for these technologies ensures the most efficient use of your server resources. Hyper-V R2 is ready when you are. We did this primarily because fixed disks pre-allocate their storage upfront when you create the disk and help prevent a situation where you could run out of storage at a later time.

Because we focused our performance efforts on fixed virtual hard disks, Hyper-V R1 performance for VMs with fixed VHDs was stellar and we recommended using fixed virtual hard disks in production environments. Because we focused on fixed VHDs in R1 and knew that would be our recommendation for production environments, we didn't spend as much time focusing on dynamically expanding virtual hard disks in R1. While customers understand our recommendation for using fixed virtual hard disks, many of them told us that they'd like to use dynamically expanding virtual hard disks because they are more efficient in terms of storage, only growing as needed.

In Hyper-V R2, we spent time analyzing and optimizing the code path for dynamically expanding VHDs and found areas where we could significantly improve performance. In some cases we achieved a 15x improvement for dynamically expanding virtual hard disks.

No, that's not a typo. While we were at it, we took another look at the fixed VHD code path and improved it further so that fixed VHD performance is now on par with native performance. In the end, we still recommend fixed disks for production use with Hyper-V R2 because it pre-allocates disk usage upfront, but if you want to use dynamically expanding virtual hard disks and are willing to take a small performance hit, Hyper-V R2 is a must.

We made that easy with Hyper-V R1, but it's worth pointing out again. There's no special certification for Hyper-V. Just make sure that the hardware you're investing in servers, storage, etc have the Windows Server Logo and now, the new Windows Server R2 Logo and you're set. You can find certified hardware online at the Windows Server Catalog and the logos look like this:. One customer pain point we hear in the virtualization world is that "ISV X" doesn't support their application in a virtual machine.

This impedes adoption and frustrates customers who see the tremendous benefits virtualization provides. We've heard this repeatedly from our valued customers who are trying to convince our ISV partners that virtualization adoption is only rising.

As a company, we've been consistently messaging how important virtualization is to our customers and demonstrating that through our significant investments in all areas of virtualization whether it's Hyper-V, App-V, MED-V, Virtualized Desktops, Remote Desktop Services etc.

In response to rapid customer adoption of Hyper-V and the customer requirement that virtualization be treated as the standard way to deploy workloads, not the exception, the Windows Server R2 Logo program now reflects that customer requirement. Specifically, for applications to receive the Windows Server R2 Logo, all applications must be tested and pass the Logo tests when running within virtual machine running on Microsoft Hyper-V.

Note: If an application cannot be tested in this configuration ISVs must work with a Microsoft approved testing vendor to learn about alternate test paths.

For example, an application needs access to a specific hardware device not present in a virtual machine. Thus, the big Monday announcement. In case you missed it, on Monday, we released 20, lines of device driver code to the Linux community under GPLv2. The code, which includes three Linux device drivers, has been submitted to the Linux kernel community for inclusion in the Linux tree.

I've read numerous articles and blogs on the Linux IC GPL announcement most using phrases like "pigs with wings" or "hell experiencing snow flurries" and while there has been some interesting conjecture out there, let me be clear: Microsoft is committed to interoperability and providing our customers the solutions that meet their needs.

Releasing these device drivers for Linux is another example of that commitment. Live Migration. I'm surprised that microsoft seems to have released a product with more features live migrations, clustering than ESXi for free. This is a great way for Microsoft to combat FOSS software, release free entry level editions and work on the upsell later on.

Sounds like a good one too, anyone know what can be run on top of this package? I would assume windows and probably Suse linux. ESXi is free but doesn't support all the nice management features of ESX, and as such is really only suitable for non-production environments.

Originally posted by Ostracus: quote:. Originally posted by n4cer: quote:. Microsoft is finally getting a competitive feature set to XenServer 5. Is there any reason right now to use the new Hyper-V over XenServer? They are still barely catching up with VMWare feature-wise.