This topic describes how to purchase a data migration instance, a data synchronization instance, and a change tracking instance in Data Transmission Service (DTS).

Prerequisites

  • An Alibaba Cloud account is created. For more information, see Sign up with Alibaba Cloud.
  • To create a pay-as-you-go instance, you must keep sufficient balance in your account.

Pricing

For more information, see Pricing.

Purchase a data migration instance

Note You can create a data migration task without the need to purchase an instance. For more information, see Create a data migration task.
  1. Visit the DTS buy page.
  2. Set parameters for the data migration instance. The following table describes the parameters.
    Note You can select only the pay-as-you-go billing method when you purchase a data migration instance.
    Category Parameter Description
    Basic settings Function Select Data Migration.
    Region Select the region where the destination database resides.
    Specification DTS provides several specifications that have different performance in migration speed. You can select a specification based on your business scenario. For more information, see Specifications of data migration instances.
    Quantity None Set the number of data migration instances that you want to purchase at a time. The default value is 1 and the maximum value is 99.
  3. Click Buy Now and follow the instructions to complete the payment.

Purchase a data synchronization instance

  1. Log on to the DTS console.
  2. In the left-side navigation pane, click Data Synchronization.
  3. In the upper-right corner of the page, click Create Data Synchronization Task.
  4. In the sidepanel on the right, purchase a subscription instance.
    • Subscription: You can pay for your subscription when you create an instance. We recommend that you select the subscription method for long-term use because it is more cost-effective than the pay-as-you-go method. You can save more costs with longer subscription periods.
    • Pay-as-you-go: A pay-as-you-go instance is billed on an hourly basis. We recommend that you select the pay-as-you-go method for short-term use. If you no longer require your pay-as-you-go instance, you can release it to reduce costs.
      Note To purchase a pay-as-you-go instance, click Go to Buy Page in the upper-left corner of the sidepanel or click Pay-as-you-go.
  5. Set parameters for the data synchronization instance. The following table describes the parameters.
    Category Parameter Description
    Basic settings Function Select Data Synchronization.
    Source Instance Select the type of the source instance that is used for data synchronization.
    Source Region Select the region where the source database resides. You cannot change the region after purchase. Proceed with caution.
    Target Instance Select the type of the destination instance that is used for data synchronization.
    Target Region Select the region where the destination database resides. You cannot change the region after purchase.
    Specification DTS provides several specifications that have different performance. The performance is measured by the number of data records that can be synchronized. For more information, see Specifications of data synchronization channels.
    Note The specification you select determines the synchronization speed. In the production environment, we recommend that you select small or a higher specification.
    Synchronization Topology Select One-Way Synchronization or Bidirectional Synchronization.
    Note
    Quantity Order Time If you select the subscription billing method, set the subscription period. The subscription period can be one to nine months or one to three years.
    Note This parameter is available only when the billing method is set to Subscription.
    Quantity Set the number of data synchronization instances that you want to purchase at a time. The default value is 1. If you select the pay-as-you-go billing method, you can purchase a maximum number of 99 instances at a time.
  6. Click Buy Now, and follow the instructions to complete the payment.

The source and destination regions must be both located in mainland China or outside mainland China. If you want to synchronize data across regions that are not both located in mainland China or outside mainland China, you must submit a ticket or contact the customer sales manager.

What to do next: Create a data synchronization task

Purchase a change tracking instance

  1. Log on to the DTS console.
  2. In the left-side navigation pane, click Change Tracking.
  3. In the upper-right corner of the page, click Create Change Tracking Task.
  4. In the sidepanel on the right, purchase a subscription instance.
    • Subscription: You can pay for your subscription when you create an instance. We recommend that you select the subscription method for long-term use because it is more cost-effective than the pay-as-you-go method. You can save more costs with longer subscription periods.
    • Pay-as-you-go: A pay-as-you-go instance is billed on an hourly basis. We recommend that you select the pay-as-you-go method for short-term use. If you no longer require your pay-as-you-go instance, you can release it to reduce costs.
      Note To purchase a pay-as-you-go instance, click Go to Buy Page in the upper-left corner of the sidepanel or click Pay-as-you-go.
  5. Set parameters for the change tracking instance. The following table describes the parameters.
    Category Parameter Description
    Basic settings Function Select Change Tracking.
    Region Select the region where the source database resides. You cannot change the region after purchase.
    Quantity Order Time If you select the subscription billing method, set the subscription period. The subscription period can be one to nine months or one to three years.
    Note This parameter is available only when the billing method is set to Subscription.
    Quantity Set the number of change tracking instances that you want to purchase at a time. The default value is 1. If you select the pay-as-you-go billing method, you can purchase a maximum number of 99 instances at a time.
  6. Click Buy Now, and follow the instructions to complete the payment.

What to do next: Create a change tracking task