LUN to VHDX move with DFS Enabled.

Current Setup:

1. 4 windows server 2012 R2 with IIS role.
2. Running on Hyper-V 2012 R2 with failover clustering and live migration capabilities.
3. DFS enabled on all web servers.
4. Each server has a LUN attached to it with the size of 50 GB.
5. A folder on each LUN created with the name of DFS, which is used by DFS obviously.
6. IIS configuration file was moved from default location to a folder inside of the DFS folder. This allows the configuration to be shared among all web servers.

Current setup works great, so I am not troubleshooting anything, however, I would like to change the LUNs with VHDX file for each VM. In case you’re wondering why I want to do this, the reason is that I am using Veeam to back up servers, and the backup is able to backup any data stored on virtual disks only, so data stored on those LUNs is not being backed up right now.

Of course, I could unnecessarily spend the money and get a windows host license for each VM and that will take care of the problem, but I would rather use the license that’s applied at the Hyper-V host level instead.

I am not entirely sure of the best way to do this, so I am seeking experts’ advice, as these web servers are very critical and run mission critical web applications and services.

I look forward to hearing from you all on the best way to do this.

Thanks in advance

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