Provisioning Cluster Storage

Applies To: Windows Server 2012, Windows Storage Server 2008 R2

For a two-node failover cluster, a minimum of two disks (LUNs) are provisioned. One LUN is provisioned for the disk witness, and one (or more) LUNs are provisioned to support high availability (HA) file server instances.


For failover clusters, the LUNs must be available before running the Cluster Validation and Setup Wizard in the Deploy the Cluster task group.

For more information about storage provisioning, see the Windows Storage Server 2008 R2 Getting Started Guide (

Cluster storage provisioning tasks are specific to your storage appliances. Consult the documentation that is provided by your storage appliance vendor for specific information to perform these tasks.