一、 cinder存储类型为lvm盘转换成ceph盘 1 转换前，需要将原来的虚拟机删掉，注意默认删除虚拟机是不会删除虚拟机对应的volume，用笔记本记得虚拟机所在的volume id或者name。

# openstack volume list --long | grep 980c87ad-35e7-4a02-a67e-2606f3e39f2d | 980c87ad-35e7-4a02-a67e-2606f3e39f2d | disk1005sg | in-use | 1 | None | true | Attached to vm1005sg on /dev/vda | |

作者环境默认存储为lvm，显示为None。 删除虚拟机

# openstack server delete vm1005sg

2 使用volume:980c87ad-35e7-4a02-a67e-2606f3e39f2d创建image，采用qcow2。

# openstack image create --container-format bare --disk-format qcow2 --volume 980c87ad-35e7-4a02-a67e-2606f3e39f2d disk-for-lvm-cirros

查看image

# openstack image list

显示如下： 根据这个镜像创建类型为rbd-1的volume

# openstack volume create --image disk-for-lvm-cirros --type rbd-1 --size 1 --bootable disk1108

查看volume列表：

# openstack volume list

发觉出错了： 在查看log:

# tailf /var/log/kolla/cinder/cinder-volume.log 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python2.7/site-packages/taskflow/engines/action_engine/executor.py", line 53, in _execute_task 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server result = task.execute(**arguments) 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 1049, in execute 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server **volume_spec) 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 963, in _create_from_image 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server image_meta=image_meta) 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 444, in _handle_bootable_volume_glance_meta 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server raise exception.MetadataCopyFailure(reason=ex) 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server MetadataCopyFailure: Failed to copy metadata to volume: Glance metadata cannot be updated, key signature_verified exists for volume id 13e2f13a-fa3d-45d0-99f3-b582b7fb582e 2020-11-08 15:57:00.299 34 ERROR oslo_messaging.rpc.server

注意黑体字的描述，其实就是因为磁盘格式问题，ceph不支持qcow2。   2 将image创建镜像及出错的盘删除

# openstack image delete disk-for-lvm-cirros # openstack volume delete disk1108

重新使用volume:980c87ad-35e7-4a02-a67e-2606f3e39f2d创建image，采用raw。

# openstack image create --container-format bare --disk-format raw --volume 980c87ad-35e7-4a02-a67e-2606f3e39f2d disk-for-lvm-cirros

根据这个镜像创建类型为rbd-1的volume

#openstack volume create --image disk-for-lvm-cirros --type rbd-1 --size 1 --bootable disk1108

查看volume列表：

# openstack volume list

显示正常： 根据这个盘创建虚拟机:

# openstack server create vm1108 --flavor nano.v1.128M.1G --volume disk1108 --network network1003

等待一段时间，查看虚拟机显示正常：

# openstack server list

  进入虚拟机：

openstack console url show b9135ae9-4bd0-43fa-9489-f4debd05a4ca +-------+-----------------------------------------------------------------------------------+ | Field | Value | +-------+-----------------------------------------------------------------------------------+ | type | novnc | | url | http://192.168.3.18:6080/vnc_auto.html?token=723af56f-80ef-462a-aa4b-6ade10259690 | +-------+-----------------------------------------------------------------------------------+

显示：