Hyper-V

W2008 R2 Hyper-V Memory More Efficient

November 27, 2009 // 1 Comment

I’m seeing the real world results of this.  We’re getting a little bit more out of the gigabytes of RAM that is in each of our hosts with Windows Server 2008 R2 Hyper-V instead of its predecessor, even with our hardware which does not have the very latest processor. One of the main players [...]

Extending a W2008 R2 Hyper-V Cluster Shared Volume

November 27, 2009 // 9 Comments

Unlike VMware’s VMFS, we can extend a Cluster Shared Volume (CSV) without doing trickery that compromises performance.  And has has been documented by Hans Vredevoort (clustering MVP) it is very scalable. How do you resize or expand a CSV?  It’s a pretty simple process: Use your [...]

Virtualisation: The Undersold Truth

November 27, 2009 // 0 Comments

Ease of administration. To a sys admin, those 3 words mean a lot.  To a decision maker like a CIO or a CFO (often one and the same) they mean nothing. It’s rare enough that I find myself working with physical boxes these days.  Most everyone is looking for a virtualised service which is [...]

Finished Our W2008 R2 Hyper-V Cluster Migration

November 26, 2009 // 0 Comments

Last night we finished migrating the last of the virtual machines from our Windows Server 2008 Hyper-V cluster to the new Windows Server 2008 R2 Hyper-V cluster.  As before, all the work was done using System Center Virtual Machine Manager (VMM) 2008 R2.  The remaining host has been [...]

W2008 R2 Hyper-V Network Tests on HP G6 Blades

November 26, 2009 // 0 Comments

I posted earlier today about my network transfer tests on HP ProLiant BL460C G5 blade servers with Windows Server 2008 R2 Hyper-V.  Hans Vredevoort also did some tests, this time using BL460C G6 blades.  This gave Hans the hardware to take advantage of some of the new technologies from [...]

W2008 R2 Hyper-V Networking Enhancements

November 26, 2009 // 1 Comment

Windows Server 2008 R2 includes some enhancements to optimise how networking works in Hyper-V.  I’m going to have a look at some of these now. Virtual Machine Queue Here’s the way things worked in Windows Server 2008.  The NIC (bottom left) runs at the hardware level.  VM1 has a [...]

W2008 R2 Hyper-V Network Speed Comparisons

November 26, 2009 // 1 Comment

Hans Vredevoort asked what sort of network speed comparisons I was getting with Windows Server 2008 R2 Hyper-V.  With W2008 R2 Hyper-V you get new features like Jumbo Frames and VMQ (Virtual Machine Queue) but these are reliant on hardware support.  Hans is running HP G6 ProLiant servers so he [...]

Using VMM To Convert VHD Types

November 25, 2009 // 3 Comments

One of the most common queries I used to get on my old blog was “how do I convert Hyper-V disks?”.  Converting a VHD is easy enough.  In the Hyper-V console you shut down the VM, edit the disk, select a location for the new VHD.  Once that’s done you can rename the old disk and grant [...]

KB975354: W2008 R2 Hyper-V Rollup for CSV and VSS

November 25, 2009 // 0 Comments

Cluster Shared Volume (CSV) is the shared storage system that can be used by multiple cluster members at once for storing and running virtual machines in a Hyper-V cluster.  CSV is specifically customised for Hyper-V and should not be used for anything else – you even have to agree to than [...]

Microsoft Appliance Test Drive

November 25, 2009 // 0 Comments

We know that VMware has a huge ecosystem of virtual appliances that run on their VMDK platform.  Microsoft has the VHD platform and thanks to the publication of integration components for Linux under GPLv2, we can expect something similar for Hyper-V. Virtualboy posted about the launch of the [...]
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