A backup vault is a repository that Cloud Backup uses to store backup data in the cloud. To prevent regional disasters from affecting business continuity, we recommend that you create a remote mirror vault for a backup vault. Data in the backup vault is automatically replicated to the mirror vault for geo-redundancy.
Prerequisites
The Storage Vault Type of the backup vault is General Backup, and Key Management Service (KMS)-based encryption is not enabled for the backup vault.
You can view the storage vault type of your backup vault on the Storage Vaults page. For more information, see Manage storage vaults.
You can create a general backup vault in the following backup scenarios: Elastic Compute Service (ECS) file backup, SAP HANA backup, Object Storage Service (OSS) backup, Apsara File Storage NAS backup, on-premises NAS backup, and on-premises file backup.
Usage notes
You cannot restore VMware virtual machines (VMs) that are replicated to a mirror vault.
You can create only one mirror vault for each backup vault.
A mirror vault can only be used for cross-region replication and data restoration. You cannot create a backup plan for a mirror vault.
Cloud Backup synchronizes historical data in a source backup vault to the mirror vault 90 minutes after the mirror vault is created.
A mirror vault contains all backup data that is stored in the source backup vault. The mirror vault also contains the data that is generated in the source backup vault after the mirror vault is created.
Before you delete a source backup vault, you must delete the remote mirror vault.
Limits
The cross-region backup feature is unavailable for the following backup vaults:
Free backup vaults for OSS backup and Apsara File Storage NAS backup
On the Storage Vaults page, you can change the value of the Trial Settings parameter for a free backup vault. This way, you can convert the free backup vault to a paid backup vault. Then, you can use the cross-region backup feature.
Backup vaults for which the KMS-based encryption feature is enabled
Mirror vaults
Archive vaults
Database backup vaults
Abnormal backup vaults, for example, backup vaults in the ERROR state
How cross-region backup works
Fees for cross-region backup
A mirror vault has the same size as the source backup vault. You are charged for the storage capacity and cross-region replication traffic.
The same pricing is applied in all regions. For more information about the pay-as-you-go prices, see Pricing of Cloud Backup.
To purchase resource plans, go to the buy page of resource plans. For more information about resource plans, see Purchase resource plans.
Create a remote mirror vault
Log on to the Cloud Backup console.
In the left-side navigation pane, click Overview.
In the Storage Vault section of the Overview page, select a region, for example, China (Hangzhou).
Find the information card of the backup vault and click Cross-Region Backup in the upper-right corner of the card.
In the Create Mirror Vault panel, configure the parameters and then click Create. The following table describes the parameters.
NoteYou can create only one mirror vault for each backup vault.
You can back up data to a remote mirror vault and restore backup data from the mirror vault. However, you cannot create backup plans for the mirror vault. The historical backup data stored in the source backup vault is synchronized to a mirror vault 90 minutes after the mirror vault is created.
The mirror vault contains all the backup data that is stored in the source backup vault.
Parameter
Description
Region
Select the region where you want to create the mirror vault. For example, if you want to create a mirror vault that replicates data from a backup vault in China (Hangzhou) to China (Shanghai), select China (Shanghai).
Vault Name
Enter a name for the mirror vault. The system automatically generates a name, for example,
[COPY]-vault-20240220-161428.To maximize the redundancy of your backup data, Cloud Backup uses zone-redundant storage (ZRS)-enabled backup vaults by default in regions that support ZRS-enabled backup vaults. For regions that support only locally redundant storage (LRS)-enabled backup vaults, Cloud Backup uses LRS-enabled backup vaults. You do not need to manually select a backup vault type.
Description
Enter a description for the mirror vault. The system automatically generates a description, for example,
From vault-20240220-161428(v-000edjuj******a8xd).The mirror vault is created
Cloud Backup synchronizes historical data in a source backup vault to the mirror vault 90 minutes after the mirror vault is created. You can view the data synchronization progress. When the progress reaches 100%, it indicates that all data in the source backup vault is synchronized to the mirror vault.
Restoration fees
You are not charged when you use a mirror vault to restore data to the following data sources within the current region: ECS instances, OSS buckets, Apsara File Storage NAS file systems, Tablestore instances, and ECS-hosted SAP HANA databases.
When you restore data to an on-premises NAS file system or an on-premises server over the Internet rather than a VPN connection or an Express Connect circuit, you are charged for the outbound traffic. Traffic fees are calculated based on the amount of data that is actually restored. For more information, see Billing of on-premises NAS backup, Billing of on-premises file backup, and Pricing of Cloud Backup.
Restore data from a mirror vault
Restore ECS files from a mirror vault
Step 1: Create an ECS instance used for data restoration
Prepare an ECS instance used for data restoration. For more information about how to create an ECS instance, see Create and manage an ECS instance in the console (express version).
The region of the ECS instance must be the same as that of the mirror vault.
Step 2: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the ECS instance created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Restore files to an ECS instance.
Restore OSS objects from a mirror vault
Step 1: Create an OSS bucket used for data restoration
For more information, see Create a bucket.
The region of the OSS bucket must be the same as that of the mirror vault.
Step 2: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the OSS bucket created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Create a restore job for an OSS bucket.
Restore Apsara File Storage NAS files from a mirror vault
Step 1: Create an Apsara File Storage NAS file system used for data restoration
Prepare an Apsara File Storage NAS file system used for data restoration. For more information about how to create an Apsara File Storage NAS file system, see Create a file system.
The region of the Apsara File Storage NAS file system must be the same as that of the mirror vault.
Step 2: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the NAS file system created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Back up files from an Apsara File Storage NAS file system.
Restore an SAP HANA instance from a mirror vault
Step 1: Create an SAP HANA instance used for data restoration
Prepare an SAP HANA instance used for data restoration. You must register the SAP HANA instance in the Cloud Backup console.
The region of the SAP HANA instance must be the same as that of the mirror vault.
Step 2: Register the SAP HANA instance in the Cloud Backup console
For more information, see Register an SAP HANA instance.
Step 3: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the SAP HANA instance created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Restore databases to an SAP HANA instance.
Restore a Tablestore instance from a mirror vault
Step 1: Create a Tablestore instance used for data restoration
Prepare a Tablestore instance used for data restoration. For more information about how to create a Tablestore instance, see Use the Wide Column model in the Tablestore console.
The region of the Tablestore instance must be the same as that of the mirror vault.
Step 2: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the Tablestore instance created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Restore Tablestore tables.
Restore an on-premises NAS file system from a mirror vault
Step 1: Create an on-premises NAS file system used for data restoration
Prepare an on-premises NAS file system used for data restoration.
Step 2: Install a Cloud Backup client
For more information, see Install a Cloud Backup client.
Step 3: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the on-premises NAS file system created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Restore files to an on-premises NAS file system.
Restore on-premises files from a mirror vault
Step 1: Prepare an on-premises server used for data restoration
The on-premises server is used to store restored files. You must create a folder on the server.
Step 2: Install a Cloud Backup client
For more information, see Install a Cloud Backup client.
Step 3: Create a restore job in the Cloud Backup console
When you create a restore job, select the created mirror vault as the source vault, and select the on-premises server created in Step 1 as the object to be restored. Make sure that other settings are the same as the settings that you configured when you created the backup job. After the restore job is completed, data is restored to the data source in the region where the mirror vault resides.
For more information, see Restore on-premises files.
Disable cross-region backup
If you delete a backup vault, all the backup data in the backup vault is deleted and the backup data cannot be restored. Proceed with caution.
To disable cross-region backup, delete the mirror vault in the corresponding region.
Before you can delete a source backup vault, you must delete its mirror vault. To delete a mirror vault, select the region where the mirror vault resides, move the pointer over Settings in the information card, and click Delete.
FAQ
Where can I view mirror vaults?
Switch to the region where the mirror vault resides. On the Overview page of the Cloud Backup console, you can view mirror vaults.
Switch to the region where the mirror vault resides. On the Storage Vaults page of the Cloud Backup console, you can view mirror vaults in the list.
What is the billing basis for the usage of a mirror vault?
The value of the Vault Usage parameter is the basis for billing.
Can I set the time frequency of cross-region backup?
Q: Can I set the time frequency of cross-region backup? For example, data is backed up to the source backup vault once a day and synchronized to the remote mirror vault once a week.
A: No, you cannot set the time frequency of cross-region backup. Data in the source backup vault is continuously replicated to the remote mirror vault.
Do mirror vaults support zone-redundant storage?
Yes, mirror vaults support zone-redundant storage.
To maximize the redundancy of your backup data, Cloud Backup uses zone-redundant storage (ZRS)-enabled backup vaults by default in regions that support ZRS-enabled backup vaults. For regions that support only locally redundant storage (LRS)-enabled backup vaults, Cloud Backup uses LRS-enabled backup vaults. You do not need to manually select a backup vault type.
ZRS-enabled backup vaults are supported in the following regions: China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Hong Kong), Japan (Tokyo), Singapore, Indonesia (Jakarta), and Germany (Frankfurt).