Help Center> Elastic Volume Service> FAQs> Attachment> Can I Attach a Disk to a Server in Another AZ?
Updated on 2022-02-22 GMT+08:00
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Can I Attach a Disk to a Server in Another AZ?

No.

Disks and the servers you attach the disks to must be in the same AZ. The same is true for shared disks. Shared disks can only be attached to the servers in the same AZ.

If your disk and server are in different AZs, there are two scenarios:
  • The disk is empty, or data on the disk is no longer needed.

    Delete or unsubscribe from the disk. Then, purchase a new disk in the AZ where the server belongs. For how to delete a disk, see Deleting an EVS Disk.

  • Data on the disk is required.

    Create a backup for the disk using the CBR service. Then, use this backup to create a new disk in the AZ where the server is. For details, see Creating a Cloud Disk Backup and Using a Backup to Create a Disk.

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