Hyper-V snapshots sometimes comes without mounted ISO

Hello, all.
We are running an automated tests with Microsoft Test Manager and SCVMM virtual environments. Recently we started to mount ISO images with file collections on VMs (we used to copy them to VMs from a network share, but it was too slow and caused timeouts and
network share access problems).
ISO images is being mounted via WMI Hyper-V Provider. The images are located in host's local folders (C:\ISO), which are also network shares being synced with "primary" share with DFS.
The problem is: sometimes (I'd say in 1 case from 100) a virtual machine doesn't "see" mounted drive like it's ejected. But Hyper-V Manager shows correct "image file" in the VM's settings. Changing it to "None" and back to the
same image file fixes the problem.
Is it a bug in Hyper-V? We even inserted an additional check: after calling WMI we also run dir D:\ to ensure the image is mounted. And it's there. And then it doesn't...
Any suggestions other than re-mount an image every time it's needed :-) ?

Hi,
As the issue is specific with Hyper-V , you may contact Microsoft Hyper-V Forum for further assistance on the issue:
Contact - Microsoft Hyper-V Forum:
http://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserverhyperv
Please revert for any clarification on this or any Windows issue. We will be glad to help you.
Roger Lu
TechNet Community Support

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