Scenarios
CBR enhances data integrity and service continuity. For example, if an ECS or a EVS disk is faulty or a misoperation causes data loss, you can use data backups to quickly restore data. This section describes how to back up ECSs and EVS disks.
For more information, CBR Architecture, Backup Mechanism, and Backup Options.
You can back up ECS data using the Cloud Server Backup or Cloud Disk Backup function.
- Cloud Server Backup (recommended): Use this backup function if you want to back up the data of all EVS disks (system and data disks) on an ECS. This prevents data inconsistency caused by time difference in creating a backup.
- Cloud Disk Backup: Use this backup function if you want to back up the data of one or more EVS disks (system or data disk) on an ECS. This minimizes backup costs on the basis of data security.
ECS Backup Procedure
- Log in to the management console.
- Click
in the upper left corner and select your region and project. - Under Computing, click Elastic Cloud Server.
- Locate the row that contains the target ECS. Click More in the Operation column and select Manage Image/Disk > Create Backup.
- Click OK. The system automatically creates a backup for the ECS.
On the Backups tab page, if the status of the backup is Available, the backup task is successful.
The ECS can be restarted if the backup progress of an ECS exceeds 10%. However, to ensure data integrity, restart it after the backup is complete.
EVS Disk Backup Procedure
- Log in to the management console.
- Click
in the upper left corner and select your region and project. - Under Computing, click Elastic Cloud Server.
- Locate the row that contains the target ECS. Click More in the Operation column and select Create Backup.
- Click OK. The system automatically creates a backup for the disk.
On the Backups tab page, if the status of the backup is Available, the backup task is successful.
If some files are deleted from the disk during the backup, the deleted files may fail to be backed up. Therefore, to ensure data integrity, delete the target data after the backup is complete.