If you want to implement disaster recovery for multiple disks, you can create a replication pair-consistent group and add the replication pairs that consist of the disks to the group. This way, you can use the replication pair-consistent group to implement disaster recovery for the disks between the primary and secondary sites in a centralized manner. This topic describes how to create a replication pair-consistent group.
Procedure
Log on to the Elastic Block Storage (EBS) console.
In the left-side navigation pane, choose
.In the top navigation bar, select the region and resource group to which the resource belongs.
Create a replication pair-consistent group.
Click the Primary Site or Secondary Site tab and then click Create Replication Pair-consistent Group.
In the Create Replication Pair-Consistent Group panel, configure the parameters and click Confirm.
The following table describes the parameters.
Parameter
Description
Group Name
Enter a name for the replication pair-consistent group.
Production Region
The production region is automatically set to the current region and cannot be changed. The production region is also called the primary region. Make sure that the primary disks in the replication pairs that you want to add to the replication pair-consistent group reside in the current region.
Production Zone
Select a zone for the primary site. The production zone is also called the primary zone. Make sure that the primary disks in the replication pairs that you want to add to the replication pair-consistent group reside in the selected zone.
Disaster Recovery Region
Select a region for the secondary site. The disaster recovery region is also called the secondary region. Make sure that the secondary disks in the replication pairs that you want to add to the replication pair-consistent group reside in the selected region.
Disaster Recovery Zone
Select a zone for the secondary site. The disaster recovery zone is also called the secondary zone. Make sure that the secondary disks in the replication pairs that you want to add to the replication pair-consistent group reside in the selected zone.
RPO (Minutes)
The recovery point objective (RPO) of the replication pair-consistent group. This parameter is automatically set to 15 minutes and cannot be changed.
NoteAfter you create a replication pair-consistent group, you can click Modify in the Actions column that corresponds to the group to modify the name and description of the group.
Add multiple replication pairs to the replication pair-consistent group.
In the replication pair-consistent group list, find the replication pair-consistent group that you want to manage and click the group ID.
On the details page of the replication pair-consistent group, click Add replication pair.
In the Add Replication Pairs to the Replication Pair-consistent Group dialog box, select the replication pairs that you want to add and click Confirm.
Activate the replication pair-consistent group.
In the replication pair-consistent group list, find the replication pair-consistent group that you want to activate and click Activate in the Actions column.
After you activate the replication pair-consistent group, all replication pairs in the group are activated.
Choose an activation method based on your business requirements.
One-time manual synchronization: Click Copy Data to immediately initiate a data replication. After the data replication is complete, the status of the replication pair-consistent group changes to Stopped. You can click Copy Data to initiate an immediate data replication based on your business requirements.
NoteTo click Copy Data, the replication pair-consistent group must be in the Created, One-time Syncing, or Stopped state.
Automatic synchronization: Click Confirm to allow the system to automatically replicate data at 15-minute intervals.
NoteTo click Confirm, the replication pair-consistent group must be in the Created, Syncing, Normal, or Stopped state.
When the status of the replication pair-consistent group changes to Normal, the async replication feature is enabled and the initial synchronization of disk data is complete. Then, the system automatically replicates data from disks in the primary site to the disks in the secondary site at 15-minute intervals for geo-disaster recovery.