> We run...
>
> net stop "virtual server"
> net stop "virtual machine helper"
>
> ....in order to do backups of the virtual hard disk files. Our host
> currently houses 2 guest OS instances of 2003 server. When we restart
> virtual server after the backup is done, 1 of the 2 guest OSes refuses to
> come back up on occasion, yielding these errors:
>
> 2/13/2006
> 8:30:10 AM Virtual Machine "VIR-SCC-001"encountered an error when attempting
> to use one of its virtual hard disks.
> 2/13/2006
> 8:30:10 AM Virtual Machine The virtual hard disk
> "E:\VIR-SCC-001\vir-scc-001-merged.vhd" attached to primary channel (0) of
> "VIR-SCC-001" could not opened with read-write access. You need read-write
> access to the virtual hard disk to boot a virtual machine. Another virtual
> machine or the Virtual Disk Manager might be using this disk right now.
>
>
> The VHD file in question is not read-only, and is not used by any other
> process that I can see. A reboot of the host is required to bring back up
> both virtual guest OSes when this does occur...
>
> Is there another workaround to this issue where a reboot of the host is not
> required?