Re-establishing a DR Relationship

Scenarios

After the DR instance is promoted to primary and the original primary instance restores, you can re-establish the DR relationship between the two instances. If the DR relationship is re-established at the DR instance side, the original primary instance becomes the DR instance, and the original DR instance becomes primary.

Precautions

• Streaming DR is available only for instances whose DB engine version is V2.0-3.200 or later.

Procedure

1. Log in to the console and select the region where the new primary instance is located.
2. In the navigation pane on the left, choose Disaster Recovery. Locate the DR task and click Re-establish DR Relationship in the Operation column.
3. In the displayed dialog box, select the confirmation information, and click Yes.

   If the DR relationship is re-established at the DR instance side, the original primary instance becomes the DR instance, and the original DR instance becomes primary.