Ceph storage is added to the VM instance. XML is not configured correctly

[XzBuleSky]

Hello !

• I created a storage pool for CEPh on KVM(Ceph host cannot specify multiple hosts, why?)

• Create a new Ceph disk for the virtual machine instance

• Viewing the VIRTUAL machine instance XML configuration information is not what I want.

  <disk type='file' device='disk'>
    <driver name='qemu' type='raw' cache='directsync'/>
    <source file='libvirt-pool/test'/>
    <target dev='vdb' bus='virtio'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
  </disk>

• I want the configuration to be

  
  <disk type='network' device='disk'>
    <driver name='qemu' type='raw'/>
    <auth username='xxxxx'>
      <secret type='ceph' uuid='xxxxxxxx'/>
    </auth>
    <source protocol='rbd' name='libvirt-pool/test'>
      <host name='192.168.xxxx' port='6789'/>
      <host name='192.168.xxxx' port='6789'/>
      <host name='192.168.xxxx' port='6789'/>
    </source>
    <target dev='vdb' bus='virtio'/>
    <alias name='virtio-disk1'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/>
  </disk>

* Second problem: When I create the ceph disk in the ceph storage pool first, the vm instance mounts the ceph disk, and the startup error occurs, Ceph storage pool path is None.

libvirt Error - Cannot access storage file 'None/test': No such file or directory

![image](https://user-images.githubusercontent.com/33563050/145555808-2c734007-b4bd-412f-a7bc-12a3819953a1.png)
![image](https://user-images.githubusercontent.com/33563050/145555862-cabb4e82-3205-426a-9995-1243b507876b.png)
![image](https://user-images.githubusercontent.com/33563050/145555887-7c050a8b-de78-45ef-aee2-9296e066b28e.png)
![image](https://user-images.githubusercontent.com/33563050/145556687-bef72bf1-3b0a-4746-b04b-d6272a0cc02c.png)

[catborise]

i install ceph cluster for testing. i will look at it.

[catborise]

i fixed problem. test and feedback pls. thanks