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From Du Jun <dj199...@gmail.com>
Subject Re: 为虚拟机绑定磁盘是失败,失败原因“Duplicate ID 'virtio-disk1' for device”
Date Mon, 25 Nov 2013 08:48:37 GMT
Hi ZHOU,
如果我先stop虚拟机,再挂载volume,然后再启动虚拟机,那么一切都ok的。就是不能在虚拟机运行的时候挂载。或者我虚拟机第一次启动的时候,我挂载上去,那也是ok的,但是我卸载掉volume然后再挂载,那就会报错“Duplicate
ID 'virtio-disk1”。
我通过libvirt来查看VM 的XML信息如下:
root@openstack-server-1:/usr/bin# virsh dumpxml i-2-3-VM
<domain type='kvm' id='11'>
  <name>i-2-3-VM</name>
  <uuid>3bec686e-ccfb-4cfd-ab0f-c709b8802f04</uuid>
  <description>Ubuntu 12.04 (64-bit)</description>
  <memory>524288</memory>
  <currentMemory>524288</currentMemory>
  <vcpu>1</vcpu>
  <cputune>
    <shares>500</shares>
  </cputune>
  <os>
    <type arch='x86_64' machine='pc-1.0'>hvm</type>
    <boot dev='cdrom'/>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source
file='/mnt/d15f1dda-469f-31b1-a760-a3f477b6903e/ebe08b1d-91d2-4d38-b034-f65041b415a2'/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw' cache='none'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <alias name='ide0-1-0'/>
      <address type='drive' controller='0' bus='1' unit='0'/>
    </disk>
    <controller type='ide' index='0'>
      <alias name='ide0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x1'/>
    </controller>
    <interface type='bridge'>
      <mac address='06:23:76:00:00:0d'/>
      <source bridge='cloudbr0'/>
      <target dev='vnet9'/>
      <model type='virtio'/>
      <bandwidth>
        <inbound average='25600' peak='25600'/>
        <outbound average='25600' peak='25600'/>
      </bandwidth>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/6'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/6'>
      <source path='/dev/pts/6'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5903' autoport='yes'/>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
    </memballoon>
  </devices>
</domain>
里面只有virtio-disk0没有virtio-disk1啊!

谢谢
DuJun



在 2013年11月25日下午4:41,Wei ZHOU <ustcweizhou@gmail.com>写道:

> 之前有过挂载、卸载的操作吗?
> virsh dumpxml出来的文件里面有virtio-disk1吗?
>
> 有条件试试虚拟机OS是centos6或者rhel6的情况。
> 我记得linux kernel 3.*带的udev里面有个bug
>
>
> 在 2013年11月24日下午1:38,Du Jun <dj199008@gmail.com>写道:
>
> > Hi ZHOU,
> > 目前我的虚拟机还没有挂额外数据盘,物理机qemu版本1.0,libvirt版本0.9.8,虚拟机OS时ubuntu
12.04.
> >
> > Does these matters?
> >
> > ----
> > Best regards,
> > DuJun
> >
> > 2013/11/24, Wei ZHOU <ustcweizhou@gmail.com>:
> > > 你挂了几个盘?你的物理机的QEMU和LIBVIRT是什么版本,虚拟机用的什么OS
> > >
> > > 2013/11/23, Du Jun <dj199008@gmail.com>:
> > >> Hi all,
> > >> 我在为虚拟机绑定磁盘的时候碰到了一个问题,log信息如下:
> > >>  2013-11-23 18:04:03,155 DEBUG [cloud.async.AsyncJobManagerImpl]
> > >> (Job-Executor-57:job-81 = [ 260b8d64-570d-4469-92c6-f27d887955b0 ])
> > >> Complete async job-81 = [ 260b8d64-570d-4469-92c6-f27d887955b0 ],
> > >> jobStatus: 2, resultCode: 530, result: Error Code: 530 Error text:
> > >> Failed to attach volume: volume-a4903396-ca1b-48a9-838d-e82dbd190932
> > >> to VM: basic-inception-vm; org.libvirt.LibvirtException: internal
> > >> error unable to execute QEMU command 'device_add': Duplicate ID
> > >> 'virtio-disk1' for device
> > >> 提示信息说:“Duplicate ID 'virtio-disk1' for
> > >> device”,我就迷惑了,数据磁盘在我的主存储里面是独一无二的呀,求解释,求说明!谢谢!
> > >>
> > >> ----
> > >> Best regards,
> > >> DuJun
> > >>
> > >
> >
>

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