• Elastic Volume Service

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  2. Elastic Volume Service
  3. User Guide
  4. Getting Started
  5. Attaching an EVS Disk
  6. Attaching a Shared Disk

Attaching a Shared Disk


Independently created EVS disks are data disks. In the disk list, the function of such disks is displayed as Data disk, and the status is displayed as Available. In this case, you need to attach the data disks to servers for use.

This topic describes how to attach a shared EVS disk to servers. Shared EVS disks can be attached to up to 16 servers.


  1. Log in to the management console.
  2. Click in the upper left corner and select the desired region and project.
  3. Under Storage, click Elastic Volume Service.

    The disk list page is displayed.

  4. Locate the target disk in the list and click Attach.

    The Attach Disk dialog box is displayed, as shown in Figure 1.

    Shared EVS disks support batch attachment so that you can attach a shared EVS disk to multiple servers at a time. The left area in the Attach Disk dialog box shows the server list. After you select the target servers, the selected servers will be displayed in the right area.
    Figure 1 Attach Disk

  5. Select the target servers and then select a device name from the drop-down list for each server you selected. Ensure that the EVS disk and servers are in the same AZ.

    The disk list page is displayed. The status of the disk is Attaching, indicating that the disk is being attached to the servers. When the disk status changes to In-use, the disk is successfully attached.

    If you simply attach a shared EVS disk to multiple servers, files cannot be shared between the servers as shared EVS disks do not have the cluster capability. Therefore, build a shared file system or deploy a cluster management system to share files between servers.