Elastic Compute Service:Create and activate a replication pair-consistent group

Procedure

1. Log on to the EBS console.

2. In the left navigation bar, select Enterprise-level Features > Consistent Replication.

3. In the upper-left corner of the page, select a region and resource group.

4. Create a replication pair-consistent group.

   1. Click the Primary Site or Secondary Site tab and then click Create Replication Pair-consistent Group.

   2. In the Create Replication Pair-Consistent Group panel, configure the parameters and click Confirm.

      Configure the following parameters.

      Parameter	Description
      Group Name	The group name.
      Production Region	Auto-set to the current region (primary region). Cannot be changed. The primary disks in the replication pairs you add must reside in this region.
      Production Zone	The zone for the primary site (primary zone). The primary disks in the replication pairs you add must reside in this zone.
      Disaster Recovery Region	The region for the secondary site (secondary region). The secondary disks in the replication pairs you add must reside in this region.
      Disaster Recovery Zone	The zone for the secondary site (secondary zone). The secondary disks in the replication pairs you add must reside in this zone.
      RPO (Minutes)	The recovery point objective (RPO). Fixed at 15 minutes.

      Note

      After creating the group, click Modify in the Actions column to change the group name or description.

5. Add replication pairs to the group.

   Limits for adding replication pairs

   • Both the replication pairs and the group must be in the Created or Stopped state.

   • The replication pairs and the group must share the same production region, production zone, disaster recovery region, and disaster recovery zone.

   • A group supports up to 17 replication pairs.

   • After adding replication pairs to a group, you can only perform activation, stop, failover, and reverse replication at the group level.

   1. In the group list, click the ID of the target group.

   2. On the group details page, click Add replication pair.

   3. In the Add Replication Pairs to the Replication Pair-consistent Group dialog box, select the replication pairs and click Confirm.

6. Activate the replication pair-consistent group.

   1. In the group list, find the target group and click Activate in the Actions column.

      This activates all replication pairs in the group.

   2. Choose an activation method.

      • One-time manual synchronization: Click Copy Data to immediately replicate data. The group status changes to Stopped after replication completes.

        Note

        Copy Data is available when the group is in the Created, One-time Syncing, or Stopped state.

      • Automatic synchronization: Click Confirm to enable automatic data replication at 15-minute intervals.

        Note

        Confirm is available when the group is in the Created, Syncing, Normal, or Stopped state.

      When the group status changes to Normal, async replication is enabled and initial data synchronization is complete. The system then replicates data from the primary site to the secondary site at 15-minute intervals.