---
title: "Add-VBRHighAvailabilityCluster"
description: "Assembles an HA cluster. Product Edition: Premium This cmdlet provides the following parameter sets: SingleClusterEndpoint (Default) CrossSubnet This cmdlet assembles an HA cluster."
canonical: "https://helpcenter.veeam.com/docs/vbr/powershell/add-vbrhighavailabilitycluster.html"
breadcrumb: "Veeam PowerShell Reference > Veeam PowerShell Reference > High Availability Cluster > Add-VBRHighAvailabilityCluster"
dateModified: "2026-08-19"
---

# Add-VBRHighAvailabilityCluster

## Short Description
Assembles an HA cluster.

**Product Edition**: Premium

## Syntax

This cmdlet provides the following parameter sets:

<ul class="syntax-sets">
  <li>
    <p><code>SingleClusterEndpoint (Default)</code></p>

```
Add-VBRHighAvailabilityCluster -PrimaryNodeIPAddress <String>
 -VBRHighAvailabilityClusterSecondaryNode <VBRHighAvailabilityClusterNode[]> -ClusterEndpoint <String>
 -ClusterDnsName <String> -Username <String> -Password <String> [-RunAsync] [-ForceAcceptCertificate] [<CommonParameters>]
```
  </li>
  <li>
    <p><code>CrossSubnet</code></p>

```
Add-VBRHighAvailabilityCluster -PrimaryNodeIPAddress <String>
 -VBRHighAvailabilityClusterSecondaryNode <VBRHighAvailabilityClusterNode[]> -ClusterDnsName <String>
 -Username <String> -Password <String> [-RunAsync] [-ForceAcceptCertificate]
 -PrimaryNodeExternalEndpoint <String> -SecondaryNodeExternalEndpoint <String> [<CommonParameters>]
```
  </li>
</ul>

## Detailed Description
This cmdlet assembles an HA cluster.

## Parameters

<table style="width:100%;" class="Blue_Table">
      <tr style="vertical-align:top">
        <th style="width:20%;">
          <p>Parameter</p>
        </th>
        <th style="width:20%;">
          <p>Description</p>
        </th>
        <th style="width:20%;">
          <p>Type</p>
        </th>
        <th style="width:10%;">
          <p>Required</p>
        </th>
        <th style="width:10%;">
          <p>Position</p>
        </th>
        <th style="width:10%;">
          <p>Accept Pipeline Input</p>
        </th>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">ClusterDnsName</span></p>
        </td>
        <td>
          <p>Specifies the DNS name of a cluster.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">ClusterEndpoint</span></p>
        </td>
        <td>
          <p>Specifies the static IP address of a cluster.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">ForceAcceptCertificate</span></p>
        </td>
        <td>
          <p>Defines that the cmdlet will accept the server certificate.</p>
        </td>
        <td style="width:10%;">
          <p><code>SwitchParameter</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">Password</span></p>
        </td>
        <td>
          <p>Specifies the password you want to use to authenticate with the secondary node.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">PrimaryNodeExternalEndpoint</span></p>
        </td>
        <td>
          <p>For assembling an HA cluster across multiple subnets.</p><p>Specifies the external IP address of the primary node.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">PrimaryNodeIPAddress</span></p>
        </td>
        <td>
          <p>For assembling an HA cluster within a single subnet.</p><p>Specifies the IP address of the primary node.</p><p>Alias: <code>PrimaryNodeHostName</code></p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">RunAsync</span></p>
        </td>
        <td>
          <p>Defines that the command returns immediately without waiting for the task to complete.</p>
        </td>
        <td style="width:10%;">
          <p><code>SwitchParameter</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">SecondaryNodeExternalEndpoint</span></p>
        </td>
        <td>
          <p>For assembling an HA cluster across multiple subnets.</p><p>Specifies the external IP address of the secondary node.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">Username</span></p>
        </td>
        <td>
          <p>Specifies the user name you want to use to authenticate with the secondary node.</p>
        </td>
        <td style="width:10%;">
          <p><code>String</code></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">VBRHighAvailabilityClusterSecondaryNode</span></p>
        </td>
        <td>
          <p>Specifies the secondary node.</p><p>Accepts the <code>VBRHighAvailabilityClusterNode[]</code> object. To create this object, run the <a href="new-vbrhighavailabilityclusternode.md"><code>New-VBRHighAvailabilityClusterNode</code></a> cmdlet.</p>
        </td>
        <td style="width:10%;">
          <p><a href="vbrhighavailabilityclusternode.md"><code>VBRHighAvailabilityClusterNode[]</code></a></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
      </tr>
    </table>

`<CommonParameters>`

This cmdlet supports Microsoft PowerShell common parameters. For more information on common parameters, see [ Microsoft Docs](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_commonparameters?view=powershell-7).

## Output Object
[`VBRHighAvailabilityCluster`](vbrhighavailabilitycluster.md)

## Examples

::: example
### Example 1. Assembling an HA Cluster

This example shows how to assemble the HA cluster.

```
$secondary = New-VBRHighAvailabilityClusterNode -HostName "203.0.113.24"
Add-VBRHighAvailabilityCluster -PrimaryNodeIPAddress 203.0.113.23 -VBRHighAvailabilityClusterSecondaryNode $secondary -ClusterEndpoint "203.0.113.25" -ClusterDnsName "ClusterSrv" -Username "veeamadmin" -Password *********** -RunAsync -ForceAcceptCertificate
```

Perform the following steps:

1. Run the [`New-VBRHighAvailabilityClusterNode`](new-vbrhighavailabilityclusternode.md) cmdlet. Specify the `HostName` parameter value. Save the result to the `$secondary` variable.
2. Run the `Add-VBRHighAvailabilityCluster` cmdlet. Specify the following settings:

   - Specify the `PrimaryNodeIPAddress` parameter value.
   - Set the `$secondary` variable as the `VBRHighAvailabilityClusterSecondaryNode` parameter value.
   - Specify the `ClusterDnsName` parameter value.
   - Specify the `Username` parameter value.
   - Specify the `Password` parameter value.
   - Provide the `RunAsync` parameter.
   - Provide the `ForceAcceptCertificate` parameter.

:::

::: example
### Example 2. Assembling an HA Cluster Across Different Subnets

This example shows how to assemble the HA cluster across different subnets.

```
$secondary = New-VBRHighAvailabilityClusterNode -HostName "203.0.113.34"
Add-VBRHighAvailabilityCluster -PrimaryNodeIPAddress 203.0.113.33 -VBRHighAvailabilityClusterSecondaryNode $secondary -ClusterDnsName "ClusterSrv" -Username "veeamadmin" -Password *********** -PrimaryNodeExternalEndpoint "198.51.100.10" -SecondaryNodeExternalEndpoint "198.51.100.11" -RunAsync -ForceAcceptCertificate
```

Perform the following steps:

1. Run the [`New-VBRHighAvailabilityClusterNode`](new-vbrhighavailabilityclusternode.md) cmdlet. Specify the `HostName` parameter value. Save the result to the `$secondary` variable.
2. Run the `Add-VBRHighAvailabilityCluster` cmdlet. Specify the following settings:

   - Specify the `PrimaryNodeIPAddress` parameter value.
   - Set the `$secondary` variable as the `VBRHighAvailabilityClusterSecondaryNode` parameter value.
   - Specify the `ClusterDnsName` parameter value.
   - Specify the `Username` parameter value.
   - Specify the `Password` parameter value.
   - Specify the `PrimaryNodeExternalEndpoint` parameter value.
   - Specify the `SecondaryNodeExternalEndpoint` parameter value.
   - Provide the `RunAsync` parameter.
   - Provide the `ForceAcceptCertificate` parameter.

:::

## Related Commands

[`New-VBRHighAvailabilityClusterNode`](new-vbrhighavailabilityclusternode.md)