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Data Transmission Service:Scale out dedicated cluster disk space

Last Updated:Mar 28, 2026

When a Data Transmission Service (DTS) dedicated cluster runs low on disk capacity, you can increase the storage space of all nodes in the cluster without adding new nodes. This topic describes how to resize node storage from the DTS console.

Note

This operation increases the storage space of all nodes in the cluster simultaneously.

Prerequisites

Before you begin, ensure that you have:

  • A DTS dedicated cluster in your account

Resize node storage

  1. Go to the Dedicated Cluster page.

  2. In the top navigation bar, select the region where your cluster is located.

  3. On the Cluster Task page, open the resize disk page using either method:

    • Find the cluster, click the More icon in the Actions column, and select Resize Disk.

    • Find the cluster, click its ID or click Details in the Actions column. On the Cluster Management page, click Resize Disk. Resize Disk

  4. On the configuration change page, set the following parameters:

    ParameterDescription
    Cluster Type of DTS InstanceThe cluster type. Select Dedicated Cluster.
    Storage Space of Dedicated Cluster NodeThe new storage size for each node. Must be greater than the current storage size.
  5. Select the check box to agree to the Terms of Service, then click Buy Now.

  6. On the Purchase page, complete the payment as prompted.

What's next

After the storage expansion takes effect, monitor your cluster's disk usage to determine when additional scaling may be needed. To scale compute capacity instead, see Add nodes to a DTS dedicated cluster.