HP EVA Cluster Extension Software Installation Guide (5697-2446, July 2013)

2. Registration of resource extension DLL must not be performed on Server Core environments.
Check whether the cluster administrator extension DLL is registered with MSCS to provide the
Cluster Administrator GUI functionality by entering:
cluster resourcetype "Cluster Extension EVA" /PROPERTIES
If the DLL is registered, the output includes the following information:
Windows Server 2008/2008 R2/2012, Server Core, or Hyper-V Server:
M Cluster Extension EVA AdminExtensions
{ADD4FC7D-6DF5-40FF-9371-BBFC8619393D}
If the DLL is not registered:
a. Enter cluster /REGADMINEXT:clxevamscsex.dll. This command must be executed
on all the cluster nodes.
b. Run the cluster resourcetype command again to verify that the DLL is now
registered. PowerShell Cmdlets can also be used instead of cluster.exe to perform
the same operations. For more information, see Microsoft documentation.
3. To Check if the resource DLL is registered, run the following command:
(Get-ClusterResourceType "Cluster Extension EVA").AdminExtensions
If the DLL is registered, the output includes the GUID of the admin extension:
{ADD4FC7D-6DF5-40FF-9371-BBFC8619393D}
If DLL is not registered
a. Run the command regsvr32 c:\windows\system32\clxevamscsex.dll. Run
this command from all the cluster nodes.
b. Run the command on the PowerShell environment
(Get-ClusterResourceType "Cluster Extension EVA").AdminExtensions
= "{ADD4FC7D-6DF5-40FF-9371-BBFC8619393D}"
This command must be executed only from one of the cluster nodes.
Unregistering the resource type and resource extension DLL manually
Enter the following command to unregister the resource extension DLL:
cluster /UNREGADMINEXT:clxevamscsex.dll.
Enter the following command to unregister the resource type:
cluster resourcetype "Cluster Extension EVA" /delete.
PowerShell Cmdlets can also be used to perform the same operations. Enter the following commands
to unregister the resource extension DLL:
1. Run the command regsvr32 /u c:\windows\system32\clxevamscsex.dll. This
must be executed on all the cluster nodes.
2. Run the command on the PowerShell environment (Get-ClusterResourceType "Cluster
Extension EVA").AdminExtensions = "". This must be executed only from one of
the cluster nodes.
Enter the following command to unregister the resource type from one of the cluster nodes.
Remove-ClusterResourceType -Name "Cluster Extension EVA"
Registering the CLX PowerShell Cmdlet DLL manually (Only Windows Server 2012)
If a problem occurs during installation, run the following commands on all the cluster nodes to
register the PowerShell Cmdlets DLL.
Verify whether the Cmdlet is registered. Open the PowerShell Window. Run the following command:
Get-PSSnapin -Registered
Troubleshooting installation and maintenance problems 25