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1.
Open Failover Cluster Manager, right-click a VM, and then select Settings. 
2.
Click the drive that you want to expand, as depicted in Figure 2-31. 

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CHAPTER 2 | Software-defined datacenter 
Figure 2-31:
Settings for Hard Drive 
3.
Click Edit to start the Edit Virtual Hard Disk Wizard. The only available option is Expand, so the 
selection is already made for you, as illustrated in Figure 2-32. 
Figure 2-32:
Expanding a hard drive 
4.
On the Configure Disk page, type the size you want the virtual hard drive to be, as shown in 
Figure 2-33. 
Figure 2-33:
Type the size for expansion 
Note You can do the same by using the following Windows PowerShell cmdlet: 
Resize-VHD -Path C:\ClusterStorage\Volume4\Shared-VHDX\Disk2.vhdx -SizeBytes 32212254720 
5.
When you have completed the wizard, open the VM and expand the drive in Server Manager, as 
demonstrated in Figure 2-34. 

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CHAPTER 2 | Software-defined datacenter 
Figure 2-34:
Extending a volume in Server manager 
With your VMs all running on your Hyper-V cluster, it is time to back up the machines. In Windows 
Server 2012 R2, you cannot back up the Shared VHDX attached to a VM from the host. Because it is 
shared, it is blocked from being backed up. However, in Windows Server 2016, you can select it as a 
virtual hard drive (VHD) to back up. 
VMs that include a Shared VHDX can now also participate in Hyper-V Replica. In previous versions of 
Windows Server, VMs with a Shared VHDX were blocked from participating. With the improvements in 
Shared VHDX, you not only have the option to replicate the VMs, you also have the option to select 
any or all of the Shared VHDX drives, as presented in Figure 2-35.