HP 3PAR StoreServ Cluster Extension Software Administrator Guide (5697-2894, December 2013)

2. To create a Cluster Extension 3PAR cluster resource in the hidden CSV role, CLX has provided
PowerShell Cmdlet to perform the required operation. For more information, see “Cluster
Extension Cmdlets for CSV and Virtual Machine Management” (page 65)
3. Once the Cluster Extension 3PAR resource is created in the CSV role, configure the CLX
Resource private properties. See “ Using Failover Cluster Management to set resource properties
of a CLX resource on which a CSV disk is dependant (Windows Server 2012)” (page 35)
4. Creation of highly available VMs on CSV disk is similar to the steps for creation of highly
available VMs on a normal disk. Follow the steps to create the highly available VM on the
CSV disk.
5. Once the highly available VM is created on the CSV disk, configure the CLX feature for the
VM management functionality for that VM. This can be done using PowerShell Cmdlet or
manual steps.
Following steps should be followed for enabling a VM for VM Management functionality:
Using PowerShell Cmdlet
CLX has provided PowerShell Cmdlet to make all the VMs which are created on a CSV disk for
VM management functionality. If you want only specific set of VMs to have the VM management
functionality, follow the manual steps as described below to make a specific VM for VM management
functionality. For more information, see “Cluster Extension Cmdlets for CSV and Virtual Machine
Management” (page 65).
Manual Steps:
If you want only specific set of VMs of a CSV disk to have VM management functionality, follow
the steps.
1. Create a cluster resource of resource type “Cluster Extension 3PAR for VM Management” in
the VM Role.
NOTE: Corresponding CSV is dependant on CLX.
Example: Using the PowerShell
Add-ClusterResource -Name VM_MGMT_Res -Group VM4_2k12 -ResourceType
"Cluster Extension 3PAR for VM Management"
2. Set the dependency of VM configuration resource on the newly created resource of resource
type “Cluster Extension 3PAR for VM Management”.
Example: Using the PowerShell
Add-ClusterResourceDependency -Resource VM_MGMT_Res -Provider
“Virtual Machine Configuration VM4_2k12”
The configuration is now complete and the VM role is enabled with VM management functionality.
Behavior of VM Management functionality in various disaster scenarios
This section describes various disaster scenarios and how the VM management functionality behaves
in these scenarios:
1. CSV disk owning cluster node and the VM owning cluster node are in different datacenter and
the VM Role is offline:
When you try to bring the VM role online, the online operation fails as owner nodes of the
respective resource are running in different datacenters. Once the resource fails on the cluster
node, depending on the cluster role failover policies, the role behaves accordingly.
2. CSV disk owner node and the VM owner node are in same datacenter and the VM Role is
offline:
When you try to bring the VM role online, the online operation succeeds as owner nodes of
the respective resource are running in same datacenters.
52 Configuring HP 3PAR StoreServ Cluster Extension