CBR allows you to replicate server backup vaults entirely to replication vaults in a different region. Replicas of server backups in the destination region can be used to create images and provision servers.
There are two methods available for replicating a vault.
- Manual replication: Select a backup vault and manually replicate it.
- Policy-based replication: Configure a replication policy to periodically replicate backups that have not been replicated or failed to be replicated to the destination region.
Constraints
- Disk backup vaults cannot be replicated to other regions.
- Backup data can be replicated to vaults in different regions, and backup replicas occupy the replication vault space.
- A server backup vault can be replicated only when it contains at least one backup that meets all the following conditions:
- The backup is an ECS backup.
- The backup contains system disk data.
- The backup is in the Available state.
- Only backup vaults can be replicated. Replicated vaults cannot be replicated again but their replicas can be used to create images.
- A backup vault can be replicated to different destination regions. The replication rule varies with the replication method:
- Manual replication: A backup can be manually replicated to the destination region as long as it has no replica in that region. A backup can be manually replicated again if its replica in the destination region has been deleted.
- Policy-based replication: A backup can only be automatically replicated to a destination region once. It cannot be automatically replicated to that region again, even if its replica has been deleted.
- Only replication-supported regions can be selected as destination regions.
Procedure
- Log in to the CBR console.
- Log in to the management console.
- Click
in the upper left corner and select a region. - Click
and choose Storage > Cloud Backup and Recovery. Select a backup type from the left navigation pane.
- On the Vaults tab, find the target backup vault.
- Choose More > Create Replica in the Operation column of the vault. See Figure 1.
Figure 1 Creating a replica

- In the displayed dialog box, configure the parameters as described in Table 1.
Table 1 Parameter descriptionParameter
|
Description
|
Destination Region
|
Region to which the vault is replicated
Only the regions that support replication will be displayed.
- If the selected region contains only one project, you can directly select the region name.
- If the selected region has multiple projects, the default project of the region is selected. You can select another project if needed.
|
Destination Vault
|
A replication vault in the destination region
|
- Click OK.
- After the replication is complete, you can switch to the destination region to view generated replicas. For details, see Querying a Vault. You can then use replicas to create images.