Data Transmission Service:Upgrade a DTS instance

Prerequisites

• The data migration task for which you want to upgrade the instance class is in the Migrating, Paused, or Failed state.
• The DTS task for which you want to upgrade the instance class is a data migration task or a data synchronization task. You cannot upgrade a change tracking instance.

Usage notes

• You can upgrade a DTS instance, but cannot downgrade the DTS instance.
• The upgrade operation causes a latency of about 5 seconds for incremental data migration and data synchronization. We recommend that you perform this operation during off-peak hours.

Billing

• Subscription instance
  Total fee for upgrading a subscription instance = (Daily fee of the instance after upgrade - Daily fee of the instance before upgrade) × (Subscription expiration date - Upgrade date)

  Note The daily fee of an instance after upgrade depends on the number of remaining days from the upgrade date to the expiration date.

  • If the number of remaining days is less than 300 days, the daily fee of the instance after upgrade equals the monthly subscription price divided by the number of days in the month.
  • If the number of remaining days is greater than or equal to 300 days, the daily fee of the instance after upgrade equals the yearly subscription price divided by the number of days in the year.
• Pay-as-you-go instance

  After you upgrade a pay-as-you-go instance, you are charged per hour based on the new instance class.

For more information about the pricing of DTS, see Billing overview.

Procedure

1. Log on to the DTS console.
2. In the left-side navigation pane, click Data Migration or Data Synchronization.
3. Find the instance that you want to upgrade and click Upgrade in the Actions column.
4. Select a new instance class and select Data Transmission Service Agreement of Service.
   Note For more information about instance classes, see Specifications of data migration instances and Specifications of data synchronization instances.
   • Select a new instance class for your data migration task.
   • Select a new instance class for your data synchronization task.
     Note

     • This topic provides a general introduction. The actual pages in the DTS console may be different from those shown in this topic.
     • Before you can change the synchronization topology of a data synchronization task, make sure that all the relevant requirements are met. For more information, see Upgrade synchronization topology from one-way to two-way.
5. Click Pay or Activate to complete the payment.