Reference Guide

Preferred Sites can also be configured at cluster role and group level.

(Get-ClusterGroup -Name SQLServer1).PreferredSite = 'Bangalore'

If there is an Active-Active stretched cluster where Preferred Sites are not configured, it is highly recommended that you

configure Preferred Sites for each volume. This will ensure that the volumes stay at the same site if there is a single node failure

on either site.

(Get-ClusterSharedVolume "Cluster Virtual Disk (ax740xds2N2)" | Get-

ClusterGroup).PreferredSite = "Chennai"

Get-ClusterSharedVolume "*ax740xds2N2)" | Get-ClusterGroup |fl *

Enable Storage Spaces

Enable-ClusterS2D -confirm:$false

This step will ensure that Storage Spaces Direct is enabled on the stretched cluster. Two storage pools are created, one for

each site.

PS C:\Users\Administrator.TEST> Get-StoragePool

FriendlyName Operational HealthStatus IsPrimordial IsReadOnly Size AllocatedSize

Status

------------ -------------- ------------ ------------ ---------- --------- -------------

Primordial OK Healthy True False 15.94 TB 15.71 TB

Pool for Site OK Healthy False False 15.7 TB 4.28 TB

Chennai

Pool for Site OK Healthy False False 15.7 TB 4.28 TB

Bangalore

New Volume

You can create a new replicated volume by using Windows Admin Center or a mixture of PowerShell and Failover Cluster

Manager.

Using PowerShell and Failover Cluster Manager

For each volume that you want to replicate across two sites, you will have to create its associated Replica volume and Log

volume on both sites.

NOTE: Customers can choose to enable replication on the volumes based on their business needs.

#Primary Volume

New-Volume -StoragePoolFriendlyName "Pool for Site Bangalore" -FriendlyName

VolumeA -FileSystem CSVFS_ReFS -Size 1TB

#Log Volume

New-Volume -StoragePoolFriendlyName "Pool for Site Bangalore" -FriendlyName

'VolumeA-Log' -FileSystem ReFS -Size 50GB

#Replica Volume

New-Volume -StoragePoolFriendlyName "Pool for Site Chennai" -FriendlyName

'VolumeA-Replica' -FileSystem ReFS -Size 1TB

#Replica Log Volume

New-Volume -StoragePoolFriendlyName "Pool for Site Chennai" -FriendlyName

'VolumeA-Replica-Log' -FileSystem ReFS -Size 50GB

NOTE:

Ensure that Replica volumes and all log volumes are ReFS (not CSVFS) before enabling replication using PowerShell

or Failover Cluster Manager.

Using Failover Cluster Manager to enable Volume Replica

Appendices