Changing Specifications

You can change the DRS instance specifications based on your service requirements. After the specification change starts, the task enters the Changing specifications state and data synchronization is suspended. After the specification change is complete, the task is automatically resumed. Only whitelisted users can use this function. You need to submit a service ticket to apply for this function.

Constraints

You can change the task specifications only when your account balance is more than $0 USD.
Currently, DRS supports specification upgrade only in MySQL-to-MySQL synchronization tasks with single-node DRS instances configured. Task specifications cannot be downgraded.
You are advised to change the task specifications during off-peak hours.
After the specification change starts, the task is suspended. The task is automatically resumed after the change is complete.
It takes about 5 to 10 minutes to change the task specifications.

Procedure

Log in to the management console.
Click in the upper left corner and select a region and project.
Choose Databases > Data Replication Service. The Data Replication Service page is displayed.
On the Data Synchronization Management page, select the target task and choose More > Change Specifications in the Operation column.
On the displayed page, select the desired specifications, perform a pre-check, and click Next.
Confirm specifications.
- If you need to modify your settings, click Previous.
- For pay-per-use instances, click Change.
  To view the cost incurred by the specifications change, choose Billing Center > Cost Bills in the upper right corner.
- For yearly/monthly DB instances, click Change. On the displayed page, click Pay. You can change the specifications only after the payment is successful.
View the instance specifications change result.

After the application is submitted, click Back to Task List. On the Data Synchronization Management page, the instance status is Changing specifications.

After the task status changes from Changing specifications to another status, you can view the instance specifications on the Basic Information page to check whether the change is successful. Alternatively, you can view the change logs on the Synchronization Logs page to whether the change is successful.
- change specification start: indicates that the specification change starts.
- change specification success: indicates that the specifications are changed.
- change specification failed: indicates that the specifications fail to be changed.
Figure 1 Specification shange logs