This topic describes how to modify the specifications, number of node groups, or storage capacity of an AnalyticDB for MySQL cluster.

Prerequisites

Your Alibaba Cloud account does not have overdue renewal orders.

Scale out and scale up a cluster

Note
  • Reserved mode for Cluster Edition: You can separately scale up the specifications, scale out node groups, and scale up the storage capacity for an AnalyticDB for MySQL cluster. You can also scale up the specifications and scale out node groups at a time.
  • Reserved mode for Basic Edition: You can separately scale up the specifications, storage capacity, and storage type for an AnalyticDB for MySQL cluster.
  • Elastic mode for Cluster Edition: You can scale out computing and elastic I/O resources separately or at a time.
  • If a cluster is of specifications other than the Elastic mode for Cluster Edition and is scaled up to the Elastic mode for Cluster Edition cluster, you must enable ENI on the Clusters Information page in the console and enable ENI to access data in the external table. When you enable ENI, the cluster performance and security are not affected.
  1. Log on to the AnalyticDB for MySQL console.
  2. In the upper-left corner of the page, select the region where the cluster you want to manage resides.
  3. In the left-side navigation pane, click Clusters.
  4. On the V3.0 Clusters tab, click Expansion in the Actions column corresponding to the required cluster.
  5. On the Change Specifications page, modify the configurations of the cluster.
  6. Read the AnalyticDB for MySQL terms of service and select the check box.
  7. Click Buy to complete the payment.

Scale down the storage capacity

Note
  • The storage capacity can be scaled down only for the Reserved mode for Cluster Edition.
  • If a cluster is of specifications other than Elastic mode for Cluster Edition and is scaled down to the Elastic mode for the Cluster Edition cluster, you must enable ENI on the Clusters Information page in the console to access data in the external table. When you enable ENI, the cluster performance and security are not affected.
  1. Log on to the AnalyticDB for MySQL console.
  2. In the upper-left corner of the page, select the region where the cluster you want to manage resides.
  3. In the left-side navigation pane, click Clusters.
  4. On the V3.0 Clusters tab, choose More > Scale In in the Actions column corresponding to a cluster.
  5. On the Upgrade/Downgrade page, scale down the storage capacity.
  6. Read the AnalyticDB for MySQL terms of service and select the check box.
  7. Click Buy to complete the payment.