Your network contains two servers named Server1 and Server2. The network contains a Storage
Area Network (SAN). Server1 and Server2 each connect to two logical unit numbers (LUNs) on the
SAN. You create a failover cluster named Cluster1. Server1 and Server2 are nodes in Cluster1. One of
the LUNs is used as a witness disk. You plan to create 10 virtual machine (VM) instances in Cluster1.
You need to ensure that each VM instance can be moved between nodes independently of the other
VMs. How should you configure Cluster1?

A.
Enable cluster shared volumes.

B.
Modify the quorum configuration.

C.
Create a clustered Generic Service instance.

D.
Create a clustered Microsoft Distributed Transaction Coordinator (MSDTC) resource.

Explanation:
Storage: You must use shared storage that is compatible with Windows Server 2008 R2. A feature of
failover clusters called Cluster Shared Volumes is specifically designed to enhance the availability and
manageability of virtual machines. Cluster Shared Volumes are volumes in a failover cluster that
multiple nodes can read from and write to at the same time. This feature enables multiple nodes to
concurrently access a single shared volume. The Cluster Shared Volumes feature is only supported
for use with Hyper-V and other technologies specified by Microsoft.
On a failover cluster that uses Cluster Shared Volumes, multiple clustered virtual machines that are
distributed across multiple cluster nodes can all access their Virtual Hard Disk (VHD) files at the same
time, even if the VHD files are on a single disk (LUN) in the storage. This means that the clustered
virtual machines can fail over independently of one another, even if they use only a single LUN.
When Cluster Shared Volumes is not enabled, a single disk (LUN) can only be accessed by a single
node at a time. This means that clustered virtual machines can only fail over independently if each
virtual machine has its own LUN, which makes the management of LUNs and clustered virtual
machines more difficult.
For a two-node failover cluster, the storage should contain at least two separate volumes (LUNs),
configured at the hardware level. Do not expose the clustered volumes to servers that are not in the
cluster. One volume will function as the witness disk (described later in this section). One volume
will contain the files that are being shared between the cluster nodes. This volume serves as the
shared storage on which you will create the virtual machine and the virtual hard disk. To complete
the steps as described in this document, you only need to expose one volume.

For Cluster Shared Volumes, there are no special requirements other than the requirement for NTFS.
For the partition style of the disk, you can use either master boot record (MBR) or GUID
partition table (GPT).
Source: http://technet.microsoft.com/en-us/library/cc732181.aspx