Help Center/ Elastic Volume Service/ FAQs/ Attachment/ Can I Attach a Disk to a Server in a Different AZ?

Updated on 2025-08-04 GMT+08:00

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Can I Attach a Disk to a Server in a Different AZ?

No.

Disks and the server you attach the disks to must be in the same AZ. The same is true for shared disks. A shared disk 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 according to Unsubscribing from or Deleting an EVS Disk. Then, buy a new disk in the AZ where the server belongs.
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 Creating a Disk from a Cloud Disk Backup.

Parent topic: Attachment

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