You can detach a volume from one instance and attach it to another.
- Log in to the VMware Integrated OpenStack dashboard.
- Select the project from the drop-down menu in the title bar.
The Volume & Snapshots page lists the volumes currently available to the current user.
- Select the volume to detach and click Edit Attachments.
- Click Detach Volume.
- Confirm the action at the prompt.
The volume is now available and can be attached to a different instance.