When a disk that is attached to an Elastic Compute Service (ECS) instance encounters a system failure or an error operation, you can roll back or clone the disk and restore data by using backup points in the source region or backup points replicated to the destination region.

Background information

The disk backup feature can protect all disks that are attached to ECS instance, including the disks that are subsequently attached. This feature can also protect specified disks. To restore a disk, you can use a backup in the source region or a backup that is replicated to the destination region.

Clone and roll back a disk

  1. On the Protected ECS Instances tab, find the ECS instance.
  2. Click the jia icon before the ECS instance.
  3. On the Disk Backup History tab, select a backup point in the source region or a backup point replicated to the destination region.
    • Clone a disk by using a backup point in the instance backup history
      1. Click a backup point. Click Clone.
      2. On the Restore Backup Point to New Disk page, select the ECS instance to which the new disk is attached. Click Next.
      3. On the Configure Attachment Parameters tab, select a disk type.
      4. Click Create.
    • Roll back a disk by using a backup point in the instance backup history
      Notice
      • A disk can be rolled back only if the ECS instance is stopped and no snapshot is being created for the disk. The data that is written to the protected ECS instance is removed when the disk is rolled back. Proceed with caution.
      • Backups that are replicated to the destination region can only be used for the clone operation, but not for the roll back operation.
      1. Click a backup point. Click Restore.
      2. In the message that appears, click OK.