In the OpenStack ecosystem, Cinder manages persistent block storage. Unlike Glance, which stores template images (like ISOs or QCOW2 files), Cinder manages the active volumes attached to virtual machines.
Once you have downloaded the image to your local storage, delete the temporary image in Glance to save space in your cloud environment. If you'd like to dive deeper, let me know: Are you using the CLI or the Horizon Dashboard ? cinder image download
Always take a snapshot of a running volume before exporting it to ensure data consistency. In the OpenStack ecosystem, Cinder manages persistent block
What is your (LVM, Ceph, NetApp)?
You must have the admin role or be the owner of the volume to perform an export. If you'd like to dive deeper, let me
Once the status shows as "active," download it to your local machine: openstack image save --file .qcow2 Method 2: Downloading Cinder Container Images