Users Guide

Implementing High Availability in Hyper-V 37

the cluster should have a Virtual Network with the name

TestNetwork

If not, when a HA VM fails over to a system that does not have a Virtual

Network with that name, the VM will not have network connectivity. In

such a scenario, the network connectivity will have to be enabled by

manually configuring the virtual network for the HA VM.

Creating Virtual Machines that will be HA VMs

This section discusses the steps to configure a new virtual machine that will

be made into an HA VM. For configuring existing non-HA VMs as HA VMs,

please refer to "Converting an Existing Non-HA VM to a HA VM" on page 49.

Choosing the storage location that will host the virtual machine's files is the

most important aspect of configuring a HA VM. As mentioned earlier, Hyper-

V requires that all the files and disks (VHD or Passthrough) belonging to a HA

VM are on shared storage (SAN) and are accessible to all nodes of the

Hyper-V Host Cluster. For creating an HA VM, the following consoles will be

required:

•

Failover Cluster Management

console (cluadmin.msc)

•

Hyper-V Manager

console (virtmgmt.msc)

•

Disk Management

console (diskmgmt.msc)

• Storage array software console such as:

– Dell Modular Disk Storage Manager™ for PowerVault MD3000 and

MD3000i arrays

– Dell EqualLogic™ Group Manager for Dell EqualLogic arrays

– EMC Navisphere Manager for Dell|EMC arrays

It is recommended that this process be done one VM at a time to ensure that

storage disk allocations to VMs are correct. Storage configuration for a VM

involves the following:

Use the SAN storage array software console to create the logical disks

(LUNs) that are required for the VM. Make sure all the disks on the SAN

are configured to be available to all the nodes of the cluster.

NOTE: For guidance on sizing storage for virtual machines, refer to the Dell

Storage Solutions Guide for Microsoft Hyper-V.

Use the

Disk Management

console on each of the server nodes to verify

that the newly provisioned storage LUN is visible to all nodes.