Working with multiple network adapters in a virtual machine

Thanks for coming back to the CORE Team blog site. This blog will address working with multiple network adapters in a virtual machine. Many of you out there may not be interested in this because you work with virtual machines that only use a single network adapter. However, for those of us that frequently work… Read more

Understanding the DiskRunChkdsk parameter in Windows 2008 and above Failover Clusters

My name is Sean Dwyer and I am a Support Escalation Engineer with the Microsoft CORE team.   I’d like to share a quick tip for handling Windows Server Cluster administrators.   There may come a time, for whatever reason, that a Cluster managed volume is flagged as dirty and you will see an event… Read more

Hyper-V Snapshots: Suggestions for Success

While working with customers, I have frequently run into situations where they need help with Hyper-V snapshots. Help with understanding what snapshots are, how to use them, best practices with them, or, in worst case scenarios, they may need help in recovering them in order to use a VM. What I’d like to do in… Read more

Unable to select an attached VHD as a Shadow Copy Storage location

You may notice that you cannot choose to store Shadow Copies on an attached VHD, and that when configuring Shadow Copy protection on an attached VHD, there are no other locations available to store the copies on, other than the protected VHD volume. This behavior is by design. Illustrated below is the behavior you may… Read more

Expected Snapshot Merge Behavior for a Highly Available VM

Hello my name is Sean Dwyer, and I’m a Support Escalation Engineer working in the Windows CORE team here at Microsoft. While working with snapshots that are attached to a highly available VM in a Cluster, you may notice after deleting a snapshot, it does not merge as expected. You’ll notice the merge process almost… Read more

Upgrade error when using Select/Action Pack media on a Hyper-V VM

You may encounter the following dialog box with attempting to upgrade an existing Operating System The text of the dialog box reads: Upgrade has been disabled The upgrade cannot be started because you are running a 64-bit version of Windows and are trying to upgrade 32-bit version. Cancel this upgrade and start over with a… Read more

Migrating to Hyper-V from Virtual Server or Virtual PC – Tips and Suggestions

Now that you’ve decided to take the leap and migrate your Virtual Server 2005 R2 or Virtual PC environment to Windows Server 2008 Hyper-V; Welcome! I know you’re going to love it! Some of the hurdles that you can run into may be a little worrisome, but we promise after you read through this, you’ll… Read more

Expanding disks attached to Hyper-V VMs may not reflect adjusted size immediately on WS2008

If you Inspect the disk in Hyper-V Manager that you just altered it will show the correct new maximum size however. Even though the disk is a Dynamically Expanding type disk, we still need to tell the Operating System about the container size change. If you look in Storage Manager, you’ll see the new unallocated… Read more

Potential Hyper-V Virtual Machine boot issues when using Automatic Windows Updates

If you’re still running the Beta or RC version of Hyper-V with configured VMs, you’ll want to make sure you do not have the Windows Update feature configured to “Install Updates Automatically”. Microsoft Knowledge Base Article 950050, the RTM Update for Hyper-V, can be presented for installation by the Windows Update site and due to… Read more