This post explains how we can use a Ceph RBD as a QEMU storage. We can attach a Ceph RBD to a QEMU VM through either virtio-blk or vhost-user-blk QEMU device (vhost requires SPDK). Assume that a Ceph cluster is ready following the manual. Setting a Ceph client Configuration 1 # For a node to access a Ceph cluster, it requires some configuration: Config file setup User authentication setup This step requires an access permission to a host; a host refers to a node that is already configured as ...
