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Cloud Backup:Restore a disk

更新時間:Apr 26, 2024

If a system failure or faulty operation occurs on a disk attached to an Elastic Compute Service (ECS) instance, you can restore the original disk or clone a disk by using a backup point in the source region or a backup point replicated to the destination region. This topic describes how to restore a disk.

Prerequisites

A disk is backed up. For more information, see Create disk backups.

Background information

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

Restore the original disk

If a system failure or faulty operation occurs on a disk attached to an ECS instance, you can restore the ECS disk by using a backup point.

  1. Log on to the Cloud Backup console.

  2. In the left-side navigation pane, choose Backup > Disk Backup.

  3. In the top navigation bar, select a region.

  4. Click the Protected Disk tab.

  5. Click the 加号 icon in front of the disk that you want to restore.

  6. In the Backup History section, click a backup point in the source region or a backup point replicated to the destination region and click Restore.

    Important

    A disk can be restored only if the ECS instance is stopped and no backup point is being created for the disk. After you restore an ECS disk to a point in time, the data that is written to the ECS disk after the point in time is cleared. Proceed with caution.

  7. In the Restore panel, specify whether to start the ECS instance after the disk is restored and click Create.

Clone a disk

If a system failure or faulty operation occurs on a disk attached to an ECS instance, you can clone a disk by using a backup point.

  1. Log on to the Cloud Backup console.

  2. In the left-side navigation pane, choose Backup > Disk Backup.

  3. In the top navigation bar, select a region.

  4. Click the Protected Disk tab.

  5. Click the 加号 icon in front of the disk that you want to restore.

  6. In the Backup History section, click a backup point in the source region or a backup point replicated to the destination region and click Clone.

  7. In the Clone panel, select a zone and a disk type, and then click Create.

    Important

    The backup points that are replicated to the destination region can be used only to restore data, and cannot be used for cross-region replication.

Replicate a disk across regions

You can replicate a specified disk across regions.

  1. Log on to the Cloud Backup console.

  2. In the left-side navigation pane, choose Backup > Disk Backup.

  3. In the top navigation bar, select a region.

  4. Click the Protected Disk tab.

  5. Click the 加号 icon in front of the disk that you want to replicate.

  6. In the Backup History section, click a backup point in the source region or a backup point replicated to the destination region and click Cross-Region Copy.

  7. In the Cross-Region Copy panel, select a destination region, specify a name and description for the backup point, and then click Create.