I use "virsh pool-define rbd.xml" to create a rbd storage pool,but get this error
virsh pool-define /tmp/rbd.xml
error: Failed to define pool from /tmp/rbd.xml
error: internal error: missing backend for pool type 8

rbd.xml
<pool type="rbd">
    <name>cloudstack</name>
      <source>
      <name>cloudstack</name>
      <host name='10.20.197.22' port='6789'/>
      </source>
</pool>

this is my system information:
centos6.4 2.6.32-358.14.2.el6.x86_64
libvirt-1.1.1-1.el6.x86_64
qemu-kvm-0.12.1.2-2.355.el6.2.cuttlefish.x86_64  (download from  http://ceph.com/packages/qemu-kvm/centos/x86_64/ )
qemu-img-0.12.1.2-2.355.el6.2.cuttlefish.x86_64


--


金山网络运维部-卢惠勇
分机:2477
手机:15018838589
qq:31302409