# Add SQL Server Availability Group to Exiting Failover Cluster Instance–Part1 of 2

- Link: https://sharepointtechnicalsupport.com/2015/05/06/adding-sql-server-availability-group-ag-to-an-exiting-failover-cluster-instance-fci-part1-of-2/
- Published: 2015-05-06T04:35:05+05:30
- Author: Deviprasad Panda

**Introduction**

Microsoft SQL Server 2012/2014 AlwaysOn provides flexible design choices for selecting
an appropriate high availability (HA) and disaster recovery (DR) solution for your
application. Building on that fact I will be providing a posts that provides a step-
by-step configuration for extending a 2 Node SQL Server Failover Cluster Instance
with a 3rd Node that host AlwaysOn Availability Group (This scenario is also known
as FCI+AG). For more information about SQL Server 2012 AlwaysOn high availability
and disaster recovery design patterns, see [SQL Server 2012 AlwaysOn High Availability and Disaster Recovery Design Patterns](http://go.microsoft.com/fwlink/?LinkId=255048).

**Prerequisites**

This posts assumes a basic knowledge of failover cluster instances (FCIs), availability
groups, high availability, and disaster recovery concepts. For more information 
about the full AlwaysOn solution feature set, see the [Microsoft SQL Server AlwaysOn Solutions Guide for High Availability and Disaster Recovery](http://msdn.microsoft.com/library/hh781257.aspx)
white paper.

**Scenario**

In this scenario I will be using a preconfigured FCI with 2 Nodes, and will be walking
through the activities needed for adding a 3^(rd) Node as a DR Server with the following
software setup:

 1. Windows Server 2012 R2
 2. All servers are joined to the domain

To make the scenario simple I will be using a Domain Account that has a Local Administrator
Permission on All Nodes. In addition, the configuration below will be using a combination
of PowerShell Scripts (that will be running as Admin) and GUI so let’s get started:

**1. Installing SQL Server on DR Node**

We need to install a New Standalone Instance on the DR Node. I will do that using
the below sample unattended SQL Setup Script:

Setup.exe /q /ACTION=Install /FEATURES=SQL /INSTANCENAME=MSSQLSERVER /SQLSVCACCOUNT
=”” /SQLSVCPASSWORD=”” /SQLSYSADMINACCOUNTS=”” /AGTSVCACCOUNT=”” /AGTSVCPASSWORD
=”” /IACCEPTSQLSERVERLICENSETERMS<

**2. Installing Windows Failover Cluster on DR Node**

Login to the DR Node and run the below script using PowerShell:

Import-Module ServerManager
 Add-WindowsFeature Failover-Clustering –IncludeAllSubFeature
Install-WindowsFeature -Name Failover-Clustering –IncludeManagementTools

**3. Add DR Node to Existing Windows Failover Cluster**

Login to the Active Node on the FCI >> Open “Failover Cluster Manager” and Right
click on “Nodes”, Then click on “Add Node”

Click on “Next” in “Add Node Wizard”

User keyboard to Enter server name: in “Add Node Wizard” then click on “Add” in “
Add Node Wizard”

Click on “Next” in “Add Node Wizard”

Select “No” for Validating Cluster and Click on “Next” in “Add Node Wizard”

Unselect “Add all eligible storage to the cluster. (check box)” in “Add Node Wizard”

Click on “Next” in “Add Node Wizard”

Make sure that the new node appears in the list of nodes.

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