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RE: VM goes into perpetual reboot after taking snapshot (ErrorId 4096/4098)

Source: microsoft.public.virtualserver
Sent: 03/16/2009
From: "Derek Lalor" <(email address - cut out)>
Message:

Environment setup:
- HP DL580 G5 CPU x 4 +132GB RAM running Windows Server 2008 + SP1.
- Virtual machines are running Windows Server 2003 + SP2.

Originally the application environment was migrated to virtual platform by
building environment on new virtual machines and then simply copying those
VHDs into new VMs, dropping them off the network and rejoining under new
server name. I then noticed the behavior where VMs would go into perpetual
reboot after taking snapshot. The snapshots are saved on the same volume as
the VM host machine.

I did some research and hit upon a couple of posts reporting similar
behavior but the propsed resolution did not work. I then suspected this was
perhaps the result of not doing a proper sys-prep of the machines. I rebuilt
the environments using sys-prepped images and have encountered this behavior
again - I take a snapshot which is generated successfully, server then
attempts to boot up but reboots before login prompt. I then reapply the
snapshot but server then seems to have been knocked off the network and I
have to remove from AD and rejoin. Below are errors from HyperV logs
associated with this behavior.

- Error #1
ErrorId : 4098
Description : The Virtual Machines configuration
B834CF5B-0C17-4829-873A-833AC88AA34F at 'E:\VM\ROMSTPQCV05' is now
accessible.

- Error #2
ErrorId : 4096
Description : The Virtual Machines configuration
B834CF5B-0C17-4829-873A-833AC88AA34F at 'E:\VM\ROMSTPQCV05' is no longer
accessible: The I/O operation has been aborted because of either a thread
exit or an application request. (0x800703E3)

Has anyone encountered this issue before. Should I perhaps be saving the
snapshots to a different volume?

Regards,

Derek.

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