6.5.1

Table Of Contents
Change the Encryption Policy for Virtual Disks
When you create an encrypted virtual machine from the vSphere Web Client, any virtual disks that you
add during virtual machine creation are encrypted. You can decrypt virtual disks that are encrypted by
using the Edit VM Storage Policies option.
Note An encrypted virtual machine can have virtual disks that are not encrypted. However, an
unencrypted virtual machine cannot have encrypted virtual disks.
See Virtual Disk Encryption.
This task explains how to change the encryption policy using storage policies. You can also use the Edit
Settings menu to make this change.
Prerequisites
You must have the Cryptographic operations.Manage encryption policies privilege.
Procedure
1 Right-click the virtual machine in the vSphere Web Client and select VM Policies > Edit VM Storage
Policies.
2 Select the hard disk for which you want to change the storage policy, and select the policy that you
want, for example Datastore Default.
Resolve Missing Key Issues
Under certain circumstances, the ESXi host cannot get the key (KEK) for an encrypted virtual machine or
an encrypted virtual disk from vCenter Server. In that case, you can still unregister or reload the virtual
machine. However, you cannot perform other virtual machine operations such as deleting the virtual
machine or powering on the virtual machine. The virtual machine is locked.
If the virtual machine key is not available, the state of the virtual machine in the vSphere Web Client
displays as invalid. The virtual machine cannot power on. If the virtual machine key is available, but a key
for an encrypted disk is not available, the virtual machine state does not display as invalid. However, the
virtual machine cannot power on and the following error results:
The disk [/path/to/the/disk.vmdk] is encrypted and a required key was not found.
Procedure
1 If the problem is the connection between the vCenter Server system and the KMS, restore the
connection.
When the KMS becomes available, the virtual machines are unlocked.
vSphere Security
VMware, Inc. 169