Merge host scaling articles into single tabbed article

Author: aarontsang

articles/bastion/TOC.yml

@@ -89,11 +89,7 @@
   - name: Platform
     items:
       - name: Configure host scaling
-        items:
-        - name: Azure portal
-          href: configure-host-scaling.md
-        - name: Azure PowerShell
-          href: configure-host-scaling-powershell.md
+        href: configure-host-scaling.md
       - name: Design architecture
         href: design-architecture.md
       - name: Availability zones and disaster recovery 

articles/bastion/configuration-settings.md

@@ -78,7 +78,7 @@ You can configure this setting using the following methods:
 | Method | Value | Links | Requires Standard SKU or higher|
 | --- | --- | --- | ---|
 | Azure portal |Instance count  | [How-to](configure-host-scaling.md)| Yes |
-| Azure PowerShell | ScaleUnit | [How-to](configure-host-scaling-powershell.md) | Yes |
+| Azure PowerShell | ScaleUnit | [How-to](configure-host-scaling.md) | Yes |
 
 ## <a name="ports"></a>Custom ports
 

articles/bastion/configure-host-scaling-powershell.md

@@ -9,7 +9,7 @@ ms.custom: devx-track-azurepowershell
 ms.topic: how-to
 ms.date: 08/12/2024
 ms.author: abell
-# Customer intent: As someone with a networking background, I want to configure host scaling using Azure PowerShell.
+# Customer intent: As a network administrator, I want to configure scale units and understand what the impact it will be on my cloud environment.
 ---
 
 # Configure host scaling using Azure PowerShell

articles/bastion/configure-host-scaling.md

@@ -1,31 +1,52 @@
 ---
-title: 'Add scale units for host scaling: Azure portal'
+title: Configure host scaling
 titleSuffix: Azure Bastion
 description: Learn how to add more instances (scale units) to Azure Bastion.
 author: abell
 ms.service: azure-bastion
 ms.topic: how-to
-ms.date: 03/31/2025
+ms.date: 03/13/2026
 ms.author: abell
-# Customer intent: As someone with a networking background, I want to configure host scaling using the Azure portal.
+# Customer intent: As a network administrator, I want to configure scale units and understand what the impact it will be on my cloud environment.
 
 ---
 
-# Configure host scaling using the Azure portal
+# Configure host scaling for Azure Bastion
 
-This article helps you add more scale units (instances) to Azure Bastion to accommodate additional concurrent client connections. The steps in this article use the Azure portal. For more information about host scaling, see [Configuration settings](configuration-settings.md#instance). You can also configure host scaling using [PowerShell](configure-host-scaling-powershell.md).
+This article helps you add scale units (instances) to your Azure Bastion deployment so you can support more concurrent client connections. Each instance supports 20 concurrent RDP connections and 40 concurrent SSH connections for medium workloads. For more information about host scaling, see [Instances and host scaling](configuration-settings.md#instance).
+
+> [!IMPORTANT]
+> Host scaling requires the Standard SKU tier or higher. Any changes to scale units will disrupt active Bastion connections.
 
 ## Configuration steps
 
+# [Azure portal](#tab/portal)
+
 1. Sign in to the [Azure portal](https://portal.azure.com).
-1. In the Azure portal, go to your Bastion host.
-1. Host scaling instance count requires Standard SKU or higher. On the **Configuration** page, for **SKU**, verify the SKU is Standard or higher. If the SKU is Basic, select a higher SKU. To configure scaling, adjust the instance count. Each instance is a scale unit.
+1. Go to your Bastion host.
+1. On the **Configuration** page, for **SKU**, verify the SKU is **Standard** or higher. If the SKU is Basic, select a higher SKU.
+1. Adjust the **Instance count**. Each instance is a scale unit.
 1. Select **Apply** to apply changes.
 
-   >[!NOTE]
-   > Any changes to the host scale units will disrupt active bastion connections.
-   >
+# [PowerShell](#tab/powershell)
+
+1. Get the target Bastion resource. Use the following example, modifying the values as needed.
+
+   ```azurepowershell-interactive
+   $bastion = Get-AzBastion -Name bastion -ResourceGroupName bastion-rg
+   ```
+
+1. Set the target scale unit, also known as "instance count". In the following example, the scale units are set to 5.
+
+   ```azurepowershell-interactive
+   $bastion.ScaleUnit = 5
+   Set-AzBastion -InputObject $bastion
+   ```
+
+1. Confirm **Y** to overwrite the resource. After the resource is overwritten, the specified value is shown in the output for **Scale Units**.
+
+---
 
 ## Next steps
 
-For more information about configuration settings, see [Azure Bastion configuration settings](configuration-settings.md).
+* Learn about [Azure Bastion configuration settings](configuration-settings.md).