Reference Guide

8 Important Information
Known Issues and Resolutions
NOTE: This section contains the issues that are specific to Hyper-V. For issues
specific to Windows Server 2008 R2, see the Microsoft Windows Server 2008 R2 for
Dell PowerEdge Systems Important Information Guide at dell.com/ostechsheets.
Virtual Machine (VM) Connection May Be Lost When Connected to a SCSI Hard Drive
Description In Hyper-V, a VM can either use an IDE or SCSI hard drive to connect
to a virtual disk.
If you connect a Windows Server 2003 VM with a SCSI adapter to a
disk located on an iSCSI target, you may experience connectivity
issues with the VM. The issue occurs if you connect through the Pass
through Disk option and the network connection to the target is
subsequently lost.
The internal connection between the VM and the SCSI disk is not
restored even after you reconnect the target. If you try to restore the
connection by opening the disk management console, an error message
is displayed, prompting you to initialize the disk.
Solution To workaround this issue, restart the VM.
Unable to Create Hyper-V VMs
Description Hardware-assisted virtualization is a pre-requisite for installing
Hyper-V. The Hyper-V Role Configuration wizard allows you to
install the Hyper-V role even if the Hardware Assisted Virtualization
(Intel-VT or AMD-V) capability is disabled in the system BIOS.
When you attempt to create or start a virtual machine, you may
receive the following error message:
Virtual machine failed to initialize.
Solution To resolve this issue, enable the Virtualization Technology feature
in the BIOS and reboot the system. The Hyper-V hypervisor
loads successfully.