Start replication to copy data from the production site to the disaster recovery site. The system automatically creates a pay-as-you-go ECS instance at the disaster recovery site.
Prerequisites
Instances are added to the protection group. For more information, see Step 5: Add instances to be protected.
Procedure
Perform the following steps to start replication:
Log on to the Cloud Backup console.
In the navigation pane on the left, choose .
If you are not using EBS Async Replication, click Switch to EBS Async Replication.
On the Site Pairs tab, click the site pair, and then click the Protection Group tab.
On the Protection Group tab, find the protection group and click Enable Replication in the Actions column.
In the Enable Replication panel, confirm the configuration and resource information, and then click Confirm.
ImportantThe system automatically creates a pay-as-you-go ECS instance at the disaster recovery site. Charges apply for the ECS instance and the EBS async replication feature. For more information, see Pay-as-you-go.
If you select Economical Mode, resources are not reserved. The ECS instance at the disaster recovery site may fail to start due to insufficient resources. For more information, see Economical mode.
To change the instance type or operating system at the disaster recovery site, use Change Instance Type or Modify Operating System. If the instance family or operating system does not meet requirements, submit a ticket to Alibaba Cloud technical support.
Before enabling replication, perform Modify User Data or Modify Disaster Recovery IP operations if needed. Specify an IP address manually on the Network Information tab.
If Stop Mode is selected, disaster recovery site instances may start briefly. Assess business impact and implement isolation measures to prevent risks from multiple running instances.
Subscription ECS instances do not support release protection.
The replication status of the protection group changes to Enabling Replication, Replicating Full Data, and Replicating Incremental Data in sequence.
Enabling Replication: Cloud Backup is ready to start replication. Cloud Backup creates an instance at the disaster recovery site and starts data replication.
Replicating Full Data: Cloud Backup is transmitting all valid data from the instance to the disaster recovery site.
Replicating Incremental Data: After full replication is complete, Cloud Backup continuously replicates incremental data from the production site to the disaster recovery site, meeting recovery point objective (RPO) requirements.