Add cluster resize content

docs/components/best-practices/architecture/sizing-your-environment.md

@@ -146,7 +146,7 @@ Now you can select a hardware package that can cover these requirements. In this
 Camunda 8 defines four [cluster sizes](/components/concepts/clusters.md#cluster-size) you can select from (1x, 2x, 3x, and 4x) after you have chosen your [cluster type](/components/concepts/clusters.md#cluster-type). The following table gives you an indication of what requirements you can fulfill with each cluster size.
 
 :::note
-Contact your Customer Success Manager if you require a custom cluster size above these requirements.
+Contact your Customer Success Manager to increase the cluster size beyond the maximum 4x size. This requires custom sizing and pricing.
 :::
 
 | Cluster size | 1x | 2x | 3x | 4x |

docs/components/concepts/clusters.md

@@ -35,7 +35,7 @@ You can choose from three different cluster types:
 | Uptime Percentage<br/> (Core Automation Cluster<strong>\*</strong>) | 99% | 99.5% | 99.9% |
 | RTO/RPO<strong>\*\*</strong><br/>(Core Automation Cluster<strong>\*</strong>) | RTO: 8 hours<br/>RPO: 24 hours | RTO: 2 hours<br/>RPO: 4 hours | RTO: < 1 hour<br/>RPO: < 1 hour |
 
-<p><strong>* Core Automation Cluster</strong> means the components critical for automating processes and decisions, such as Zeebe, Operate, Tasklist, Optimize and Connectors.</p>
+<p><strong>* Core Automation Cluster</strong> means the components critical for automating processes and decisions, such as Zeebe, Operate, Tasklist, Optimize, and Connectors.</p>
 <p><strong>** RTO (Recovery Time Objective)</strong> means the maximum allowable time that a system or application can be down after a failure or disaster before it must be restored. It defines the target time to get the system back up and running. <strong>RPO (Recovery Point Objective)</strong> means the maximum acceptable amount of data loss measured in time. It indicates the point in time to which data must be restored to resume normal operations after a failure. It defines how much data you can afford to lose. The RTO/RPO figures shown in the table are provided on a best-effort basis and are not guaranteed.</p>
 
 :::info
@@ -46,22 +46,18 @@ See [Camunda Enterprise General Terms](https://legal.camunda.com/licensing-and-o
 
 The cluster size defines the cluster performance and capacity.
 
-After you have chosen your cluster type, you can choose the cluster size that best meets your cluster environment requirements.
+After you have chosen your cluster type, choose the cluster size that best meets your cluster environment requirements.
 
 To learn more about choosing your cluster size, see [sizing your environment](/components/best-practices/architecture/sizing-your-environment.md#sizing-your-runtime-environment).
 
 - You can choose from four cluster sizes: 1x, 2x, 3x, and 4x.
 - Larger cluster sizes include increased performance and capacity, allowing you to serve more workload.
 - Increased usage such as higher throughput or longer data retention requires a larger cluster size.
 - Each size increase uses one of your available cluster reservations. For example, purchasing two HWP advanced reservations for your production cluster allows you to configure two clusters of size 1x, or one cluster of size 2x.
+- You can change the cluster size at any time. See [resize a cluster](/components/console/manage-clusters/manage-cluster.md#resize-a-cluster).
 
 :::note
-
-Contact your Customer Success Manager to:
-
-- Increase the cluster size beyond the maximum 4x size. This requires custom sizing and pricing.
-- Increase the cluster size of an existing cluster.
-
+Contact your Customer Success Manager to increase the cluster size beyond the maximum 4x size. This requires custom sizing and pricing.
 :::
 
 ## Free Trial clusters

docs/components/console/manage-clusters/manage-cluster.md

@@ -4,7 +4,7 @@ title: Manage your cluster
 description: "Follow these steps to rename, resume, update, or delete your cluster."
 ---
 
-Read through the following sections to rename, resume, update, or delete your cluster.
+Learn how to rename, resume, update, resize, or delete your cluster.
 
 ## Rename a cluster
 
@@ -59,6 +59,19 @@ When an update is available, an **Update** button will appear. This button is no
 
 You can decide if you want to have [automated updates](/reference/auto-updates.md) to new versions of Camunda 8 activated. You can also toggle this feature anytime later in the **Settings** tab of your cluster.
 
+## Resize a cluster
+
+You can increase or decrease the [cluster size](/components/concepts/clusters.md#cluster-size) at any time. For example, increase the cluster size to improve performance and add capacity, or decrease the cluster size to free up reservations for another cluster.
+
+1. Open the cluster details by clicking on the cluster name.
+1. Select the **Edit cluster size** link next to the cluster type.
+1. Select the new cluster size from the available sizes.
+1. Click **Confirm** to apply your changes, or **Cancel** to close the modal without resizing the cluster.
+
+:::note
+Contact your Customer Success Manager to increase the cluster size beyond the maximum 4x size. This requires custom sizing and pricing.
+:::
+
 ## Delete a cluster
 
 :::note