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Elastic Compute Service:Add replication pairs

Last Updated:Nov 20, 2023

You can add replication pairs that replicate in the same direction as a replication pair-consistent group to the group so that you can manage these replication pairs as a batch by using the group. This topic describes how to add replication pairs.

Prerequisites

  • A replication pair-consistent group is created and in the Created or Stopped state. For information about how to create a replication pair-consistent group, see Create a replication pair-consistent group.

  • Replication pairs are created and in the Created or Stopped state. For information about how to create a replication pair, see Create a replication pair.

Background information

When you add replication pairs to a replication pair-consistent group, take note of the following items:

  • Direction of data replication

    A replication pair and a replication pair-consistent group replicate in the same direction if they have the same primary region (production region), primary zone (production zone), secondary region (disaster recovery region), and secondary zone (disaster recovery zone). A replication pair can be added only to a replication pair-consistent group that replicates in the same direction as the replication pair.

  • Number of replication pairs

    Up to 17 replication pairs can be added to a single replication pair-consistent group.

  • Impact of adding replication pairs to a replication pair-consistent group

    • The recovery point objective (RPO) of the replication pair-consistent group takes effect on the replication pairs in place of their original RPOs.

    • You can only modify the name and description of the replication pairs. You cannot start, stop, delete, or perform a failover or reverse replication on individual replication pairs. These replication pairs can only be managed as a batch by using the replication pair-consistent group.

Procedure

  1. Log on to the Elastic Block Storage (EBS) console.

  2. In the left-side navigation pane, choose Enterprise-level Features > Replication Pair-consistent Group.

  3. In the upper-left corner of the top navigation bar, select a region. 地域

  4. On the Replication Pair-Consistent Groups page, find the replication pair-consistent group to which you want to add replication pairs and click the ID of the group.

  5. On the details page of the replication pair-consistent group, click Add replication pair.

    Note

    After replication pairs are added to the replication pair-consistent group, you can click Activate in the upper-right corner of the group details page to activate the replication pairs.

  6. In the Add a disaster recovery pair to the consistency replication group dialog box, select replication pairs and click Confirm.

What to do next

After replication pairs are added to the replication pair-consistent group, you must activate the replication pairs by activating async replication for the group. For more information, see Activate async replication for replication pair-consistent groups.