- What's New
- Function Overview
- Service Overview
-
Billing
- Billing Overview
- Billing Modes
- Billed Items
- Billing Examples
- Billing Mode Changes
- Renewing Subscriptions
- Bills
- Arrears
- Billing Termination
- Cost Management
-
Billing FAQ
- How Is CBR Billed?
- What Is the Billing Cycle of Pay-per-Use Vaults?
- How Do I Disable CBR?
- How Do I Unsubscribe from CSBS or VBS Resource Packages?
- Why Is a Message Displayed Indicating Insufficient User Rights When I Create a Policy?
- What Can I do If a Yearly/Monthly-Billed Vault Is About to Expire?
- How Do I Unsubscribe from a Vault?
- What Should I Do If the Fee Is Too High When I Expand the Capacity of a Vault?
- Can I Change a Server Backup Vault to a Disk Backup Vault or the Other Way Around?
- Why Are CBR Backups Displayed on the VBS Console?
- What Charges Will I Incur When Using a Backup to Create an Image?
- How Do I Purchase a CBR Replication Traffic Package?
- Can I Change the Protection Type of an Existing Vault?
- What Resources Do I Need to Implement Cross-Region Backup Replication?
- Why AM I Still Being Billed After a Resource is Deleted?
- Getting Started
- User Guide
-
Hybrid Cloud Backup Feature Guide
- Hybrid Cloud Backup
- Application Scenarios
- Constraints and Limitations
-
VMware Backup
- VMware Backup Process
- Downloading the eBackup Image Template
- Enabling Cloud and On-premises Communication
- Planning the Network
- Installing eBackup
- Configuring eBackup
- Adding a VMware Protected Environment
- Preparing for VMware Backup Storage
- Performing VMware Backup
- Restoring Data Using VMware Backups
- Managing a Protected VMware Environment
- Managing VMware Backup Storage
- Managing VMware Backups
- Common Operations
-
Best Practices
-
Using a Custom Script to Implement Application-Consistent Backup
- Using a Custom Script to Implement Consistent Backup for MySQL
- Using a Custom Script to Implement Consistent Backup for SAP HANA
- Using a Custom Script to Implement Consistent Backup for Other Linux Applications
- Troubleshooting a Custom Script Error
- Verifying the Application-Consistent Backup Result (Linux)
- Verifying the Application-Consistent Backup Result (Windows)
- Protecting SQL Server in Failover Cluster Mode
- Protecting SQL Server in Always on Availability Groups Mode
- Performing Periodic Recovery Drills Using the Backup Data
- Creating Backup Policies Based on Service Tiering
- Change History
-
Using a Custom Script to Implement Application-Consistent Backup
- API Reference
- SDK Reference
-
Troubleshooting
- Failed to Execute a Backup Task
- Failed to Delete a Backup
- Failed to Expand the Vault Capacity
- Failed to Attach Disks
- Data Disks Are Not Displayed After a Windows Server Is Restored
- Failed to Cancel Backup Sharing
- Failed to Download or Install the Agent Required by Application-Consistent
- Failed to Install Agent in Windows, with A Message Displayed Indicating User rdadmin Already Exists
- Failed to Implement Application-Consistent Backup
- A Server Created Using an Image Enters Maintenance Mode After Login
- Failed to Migrate VMware Backups to the Cloud
- Failed to Restore a VMware Backup to a Cloud Server
- An Error Message Is Displayed Indicating that the Path of a Storage Unit Is Invalid
- Failed to Import an eBackup Image Template, with an Error Displayed Indicating That the File Is Invalid
- The Download Dialog Box Disappears When I Download eBackup on a VMware VM
-
FAQs
-
Concepts
- What Are Full Backup and Incremental Backup?
- What Are the Differences Between Backup and Disaster Recovery?
- What Are the Differences Between Backups and Snapshots?
- Why Is My Backup Size Larger Than My Disk Size?
- What Are the Differences Between Backups and Images?
- What Are the Differences Between Cloud Server Backup and Cloud Disk Backup?
- Why Does the Used Capacity of a Vault Change Only Slightly After I Deleted Unwanted Backups?
-
Billing
- How Is CBR Billed?
- How Large of a Vault Do I Need?
- What Is the Billing Cycle and Pay Time of the Pay-per-Use Mode?
- How Do I Disable CBR?
- Why Is a Message Displayed Indicating Insufficient User Rights When I Create a Policy?
- What Can I do If a Yearly/Monthly-Billed Vault Is About to Expire?
- How Do I Unsubscribe from a Vault?
- Can I Change a Server Backup Vault to a Disk Backup Vault or the Other Way Around?
- What Charges Will I Incur When Using a Backup to Create an Image?
- Can I Change the Protection Type of an Existing Vault?
-
Backup
- Do I Need to Stop the Server Before Performing a Backup?
- Can I Back Up a Server Deployed with Databases?
- How Can I Distinguish Automatic Backups From Manual Backups?
- Can I Choose to Back Up Only Some Partitions of a Disk?
- Does CBR Support Cross-Region Backup?
- Can I Back Up Two Disks to One Target Disk?
- How Do I Replicate a Disk to the Same AZ in a Region as the Source Disk?
- Will the Server Performance Be Affected If I Delete Its Backups?
- Can I Use Its Backup for Restoration After a Resource Is Deleted?
- How Many Backups Can I Create for a Resource?
- Can I Use an Incremental Backup to Restore Data After a Full Backup Is Deleted?
- Can I Stop an Ongoing Backup Task?
- How Do I Reduce the Vault Space Occupied by Backups?
- How Do I View the Size of Each Backup?
- How Do I View My Backup Data?
- How Long Will My Backups Be Kept?
-
Restoration
- Do I Need to Stop the Server Before Restoring Data Using Backups?
- Can I Use a System Disk Backup to Recover an ECS?
- Do I Need to Stop the Server Before Restoring Data Using Disk Backups?
- Can a Server Be Restored Using Its Backups After It Is Changed?
- Can a Disk Be Restored Using Its Backups After Its Capacity Is Expanded?
- What Can I Do if the Password Becomes a Random One After I Use a Backup to Restore a Server or Use an Image to Create a Server?
- What Changes Will Be Made to the Original Backup When I Use the Backup to Restore a Server?
- How Do I Restore Data on the Original Server to a New Server?
- How Do I Restore a Data Disk Backup to a System Disk?
- Can I Use CBR to Restore Data to Any Point When the Data Was Backed Up?
- Can I Stop an Ongoing Restoration Task?
-
Policies
- How Do I Configure Automatic Backup for a Server or Disk?
- Why Does the Retention Rule Not Take Effect After Being Changed?
- How Do I Back Up Multiple Resources at a Time?
- How Do I Retain My Backups Permanently?
- How Can I Cancel Auto Backup or Auto Replication?
- How Can I Have the System Automatically Delete Backups That I No Longer Need?
- Why Aren't My Backups Deleted Based on the Retention Rule?
- Optimization
-
Others
- Is There a Quota for CBR Vaults?
- Can I Merge My Vaults?
- How Do I Delete a Backup That Has Been Used to Create an Image While Retaining the Image?
- What Can I Do If the Vault Capacity Is Not Enough?
- Will Backup Continue If the Usage of a Vault Reaches the Upper Limit?
- Can I Export Disk Backup Data to Another Server?
- Why Do I Need a Vault to Accept the Image Shared to Me?
- Can I Download Backup Data to a Local PC?
- How Do I Copy Disk Data to Another Account?
-
Concepts
- Videos
Restoring from a Cloud Server Backup
When disks on a server are faulty or their data is lost, you can use a backup to restore the server to its state when the backup was created.
You can also restore the backup to another server. For details, see How Do I Restore Data on the Original Server to a New Server?
The system shuts down the server before restoring server data, and automatically starts up the server after the restoration is complete. If you deselect Start the server immediately after restoration, you need to manually start the server after the restoration is complete.
Notes and Constraints
- When restoring from a cloud server backup, backup of a data disk cannot be restored to the system disk.
- Data cannot be restored to servers in the Faulty state.
- Concurrent data restoration is not supported.
- A backup of an ECS created using an ISO image cannot be used to directly restore data. You can use the backup to create an image and then provision an ECS using the image.
Prerequisites
- Disks are running properly on the server whose data needs to be restored.
- The server has at least one Available backup.
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.
- Click the Backups tab. Locate the desired backup. For details, see Viewing a Backup.
- Click Restore Server in the Operation column, as shown in Figure 1.
NOTICE:
The current server data will be overwritten by the data captured at the time of backup. The restoration cannot be undone.
- (Optional) Deselect Start the server immediately after restoration.
If you do so, manually start the server after the restoration is complete.
NOTICE:
Servers will be shut down during restoration, so you are advised to perform a restoration during off-peak hours.
- In the Destination Disk drop-down list, select the target disk to which the backup will be restored.
NOTE:
- If the server has only one disk, the backup is restored to that disk by default.
- If the server has multiple disks, the backup is restored to the original disks by default. You can also restore the backup to a different disk of at least the same size as the original disk.
- When restoring from a cloud server backup, backup of a data disk cannot be restored to the system disk.
NOTICE:
If the number of disks to be restored is greater than the number of disks that were backed up, restoration may cause data inconsistency.
For example, if the Oracle data is scattered across multiple disks and only some of them are restored, data inconsistency may occur and the application may fail to start.
- Click Yes and confirm that the restoration is successful.
You can view the restoration status in the backup list. When the backup enters the Available state and no new restoration tasks failed, the restoration is successful. The resource is restored to the state when that backup was created.
For details about how to view failed restoration tasks, see Managing Tasks.
NOTICE:
If you use a cloud server backup to restore a logical volume group, you need to attach the logical volume group again.
Due to Window limitations, data disks may fail to be displayed after a Windows server is restored. If this happens, manually bring these data disks online. For details, see Data Disks Are Not Displayed After a Windows Server Is Restored.
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