How to Configure a Clustered Storage Space in Windows Server 2012

First published on MSDN on Jun 02, 2012

This blog outlines the sequence of steps to configure a Clustered Space in 2012 using the Cluster Manager or Windows PowerShell®. You can learn more about Spaces here:


  • A minimum of three physical drives, with at least 4 gigabytes (GB) capacity each, are required to create a pool in a Cluster.
  • The clustered storage pool


    be comprised of Serial Attached SCSI (SAS) connected physical disks. Layering any form of storage subsystem, whether an internal RAID card or an external RAID box, regardless of being directly connected or connected via a storage fabric, is not supported.
  • All physical disks used to create a clustered pool must pass the Failover Cluster validation tests. To run cluster validation tests:
    • Open the

      Failover Cluster Manager

      interface (


      and select the

      Validate Cluster


  • Clustered storage spaces must use fixed provisioning.
  • Simple and mirror storage spaces are supported for use in Failover Cluster. Parity Spaces are not supported.
  • The physical disks used for a clustered pool must be dedicated to the pool. Boot disks should not be added to a clustered pool nor should a physical disk be shared among multiple clustered pools.
  • Storage spaces formatted with ReFS cannot be added to the Cluster Shared Volume (CSV).

Steps to configure using the Failover Cluster Manager

1.       Add the

File Services Role

and the

File Services Role Administration Tools

to all nodes in the Failover Cluster

2.       Open the

Failover Cluster Manager

interface (



3.       In the left-hand pane, expand


. Right-click on


and select

New Storage Pool.

This will start the

New Storage Pool Wizard

4.       Specify a


for the Storage Pool and choose the

Storage Subsystem

that is available to the cluster and click


5.       Select the

Physical Disks

(a minimum of three with minimum capacity 4GB each and bus type SAS) for the storage pool and confirm the creation of the pool. The pool will be added to the cluster and brought



once created.

6.       The next step is to create a

Virtual Disk (storage space)

that will be associated with a storage pool. In the

Failover Cluster Manager

, select the

storage pool

that will be supporting the

Virtual Disk.

Right-click and choose

New Virtual Disk

7.       This initiates the

New Virtual Disk Wizard

. Select the server and storage pool for the virtual disk and click


.  Note that the cluster node hosting the storage pool will be listed.

8.       Provide a name and description for the virtual disk and click


9.       Specify the desired

Storage Layout

(Simple or Mirror; Parity is not supported in a Failover Cluster) and click


: I/O operations to a CSV mirror space are redirected at the block level through the CSV coordinator node. This may result in different performance characteristics for I/O to the storage, compared to a simple space.

10.   Specify the size of the virtual disk and click


After you confirm your selection, the virtual disk is created. The

New Volume Wizard

is launched if you do not uncheck this option on the confirmation page.

11.   The correct


and the


to provision the disk to should be selected for you. Verify this selection and click



12.   Specify the size of the volume and click


13.   Optionally assign a drive letter to the volume and click


14.   Select the file system settings and click


and confirm the volume settings. The new volume will be created on the virtual disk and will be added to the Failover Cluster.


The NTFS File System should be selected if the volume is to be added to Cluster Shared Volumes.

15.   Your clustered storage space can now be used to host clustered workloads. You can also see the properties of the clustered storage space and the clustered pool that contains it, from the Failover Cluster Manager.

Steps to configure using Windows PowerShell®

Open a Windows PowerShell® console and run the following steps:

1.       Create a new pool

a.  Select physical disks to add to the pool

$phydisk =


–CanPool $true | Where BusType -eq “SAS”

b.  Obtain the storage subsystem for the pool

$stsubsys =


c.       Create the new storage pool

$pool =


-FriendlyName TestPool -StorageSubsystemFriendlyName $stsubsys.FriendlyName -PhysicalDisks $phydisk -ProvisioningTypeDefault Fixed

d.      Optionally add an additional disk as a HotSpare

$hotSpareDisk =


–CanPool $true |




-StoragePoolFriendlyName TestPool -PhysicalDisks $hotSpareDisk -Usage HotSpare

2.        Now create a Storage Space in the pool created in the previous step

a.  $newSpace =


–StoragePoolFriendlyName TestPool –FriendlyName space1 -Size (1GB)  -ResiliencySettingName Mirror

3.       Initialize, partition and format the Storage Space created

a.  $spaceDisk = $newSpace |




-Number $spaceDisk.Number -PartitionStyle GPT

c.  $partition =


-DiskNumber $spaceDisk.Number -DriveLetter $driveletter -size $spaceDisk.LargestFreeExtent



-Partition $partition -FileSystem NTFS

4.       Add the Storage Space created to the Cluster

a.  $space =


-FriendlyName space1





  • Clustered Spaces can also be created using the
    Server Manager

  • You can find a full end to end Windows PowerShell® sample on setting up a file server cluster with Storage Spaces




If you come across any of the following errors while attempting to add a storage pool to the cluster please review the


section at the beginning of this blog to determine which requirement was not met:

Failed to add storage pool to cluster – {XXXXXXX-XXXX-XXXX-XXXX-XXXXXXX}

No storage pool suitable for cluster was found.


Subhasish Bhattacharya

Program Manager

Clustering &



This article was originally published by Microsoft’s Failover Clustering Blog. You can find the original article here.