I have been getting lots of questions from customers and partners about what are the guidance on updating Service Pack 1 for Server 2008 R2 to enable Dynamic Memory and Remote FX for Virtual Machines on Hyper V.
I have been discussing them verbally and now we have a official guidance released by Virtualization product team. so here i am conveying the message.
There are three steps and you should perform them in this order:
Step 1: Ensure Virtual Machines are ready for the update. Completely shut down (not save state) your virtual machine and merge snapshots. Saved States are not compatible between different Hyper-V versions.
Step 2: Update the host. Install Service Pack 1 on the parent partition. Restart when prompted.
Step 3: Update the Guest Integration Services
1. VMs running Windows 7 and Windows Server 2008 R2: Update the guest operating system with SP1. Updating the guest OS with Service Pack 1 will, in turn upgrade the Integration Services
2. VMs not running Windows 7 SP1/Server 2008 R2 SP1: (e.g. Windows XP/Vista/7 RTM/2000/2003/2008/2008 R2 RTM) For other operating systems you will need to upgrade their Integration Services. To do so:
For more information on Dynamic Memory available in Service Pack 1 Beta, I would strongly recommend you to read the following blog posts on Microsoft Virtualization Team Blog.
I hope it helps and as always do send your feedbacks and comments.