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[libvirt] add a rbd disk by virsh attach-device , the operation fails



Hello:
	add a rbd disk by virsh attach-device ,the operation fails; libvirt version: libvirt-0.10.2-46.el6.x86_64
operated virsh pool-info, pool-edit, attach-device domain_id /tmp/rbddisk.xml command:

virsh # pool-info 0a081d22-070b-3f58-a883-78e29012b052
Name:           0a081d22-070b-3f58-a883-78e29012b052
UUID:           0a081d22-070b-3f58-a883-78e29012b052
State:          running
Persistent:     no
Autostart:      no
Capacity:       305.50 TiB
Allocation:     173.06 GiB
Available:      304.98 TiB

virsh # pool-edit 0a081d22-070b-3f58-a883-78e29012b052
<pool type='rbd'>
  <name>0a081d22-070b-3f58-a883-78e29012b052</name>
  <uuid>0a081d22-070b-3f58-a883-78e29012b052</uuid>
  <capacity unit='bytes'>335898508001280</capacity>
  <allocation unit='bytes'>185824236409</allocation>
  <available unit='bytes'>335327800442880</available>
  <source>
    <host name='szebs01.app.paic.com.cn' port='6789'/>
    <name>ebs_sz_01_01</name>
    <auth username='szbcs' type='ceph'>
      <secret uuid='0a081d22-070b-3f58-a883-78e29012b052'/>
    </auth>
  </source>
</pool>

virsh # attach-device 52 /tmp/rbddisk.xml 
error: Failed to attach device from /tmp/rbddisk.xml
error: internal error unable to execute QEMU command '__com.redhat_drive_add': Device 'drive-virtio-disk1' could not be initialized

This context of /tmp/rbddisk.xml :
    <disk type='network' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <auth username='szbcs'>
        <secret type='ceph' uuid='0a081d22-070b-3f58-a883-78e29012b052'/>
      </auth>
      <source protocol='rbd' name='ebs_sz_01_01/5eba8a02-f251-4674-88b8-e368a07d50c5'>
        <host name='szebs01.app.paic.com.cn' port='6789'/>
      </source>
      <target dev='vdb' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </disk>

This error information in libvirtd log file:
2015-05-05 02:51:52.005+0000: 32082: error : qemuMonitorJSONCheckError:359 : internal error unable to execute QEMU command '__com.redhat_drive_add': Device 'drive-virtio-disk1' could not be initialized

Thanks!!




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