1.安装环境

    DELL R710 \*2
    Centos 6.4
    Centos 6.0（VM）
    libvirt 1.1.1
    qemu 0.13.50

2.安装libvirt

通过源码安装libvirt，安装libvirt依赖包

yum install libxml2-devel device-mapper-devel libdevmapper python-devel libpciaccess-devel libnl-devel

安装libvirtd

tar -zxvf libvirt-1.1.1.tar.gz
./configure --with-storage-sheepdog
make
make install

设置libvirtd

mkdir -p /usr/local/var/lock/subsys
cp /etc/rc.d/init.d/functions /usr/local/etc/rc.d/init.d/
cp /usr/local/sbin/libvirtd /usr/sbin/
cp /usr/local/etc/rc.d/init.d/libvirt* /etc/init.d/

启动libvirtd

service libvirtd start

编写libvirtd.xml文件

<domain type='qemu'>
  <name>centos6</name>
  <uuid>c7a5fdbd-cdaf-9455-926a-d65c16db1809</uuid>
  <memory>219200</memory>
  <currentMemory>219200</currentMemory>
  <vcpu>2</vcpu>
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='hd'/>
  </os>
  <devices>
    <emulator>/usr/local/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <source file='/tmp/images/centos6.img'/>
      <target dev='hda'/>
    </disk>
<disk type='network'>
      <driver name="qemu" type="raw" io="threads" />
      <source protocol="sheepdog" name="myvol">
        <host name="10.10.200.228" port="7000"/>
      </source>
      <target dev="hdb" bus="ide"/>
      <address type='drive' controller='0' bus='1' unit='0'/>
    </disk>
  <interface type='bridge'>
            <source bridge='br0'/>
            <model type='rtl8139'/>
        </interface>
        <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/>
    </devices>
</domain>

3.sheepdog创建vdi

有两种方式创建vdi，一种是通过qemu-img来创建

qemu-img create sheepdog:test 40G

另外一种，通过编写libvirtd的xml文件进行创建volume

首先创建pool，编写pool.xml

vi pool.xml
<pool type="sheepdog">
        <name>mysheeppool</name>
        <source>
          <name>mysheeppool</name>
          <host name='10.10.200.228' port='7000'/>
        </source>
      </pool>

创建pool

virsh pool-create pool.xml

创建volume，编写volume.xml

<volume>
         <name>myvol</name>
         <key>sheep/myvol</key>
         <source>
         </source>
         <capacity unit='bytes'>53687091200</capacity>
         <allocation unit='bytes'>53687091200</allocation>
         <target>
           <path>sheepdog:myvol</path>
           <format type='unknown'/>
           <permissions>
             <mode>00</mode>
             <owner>0</owner>
             <group>0</group>
           </permissions>
         </target>
       </volume>

创建volume

virsh vol-create mysheeppool vol.xml

查看sheepdog vdi

[root@euca-clc images]# dog vdi list
  Name        Id    Size    Used  Shared    Creation time   VDI id  Copies  Tag
  10.10.200.228:7000:test1.img     0   10 GB  0.0 MB  0.0 MB 2013-08-21 13:32   24baa2     2              
  test         0   40 GB  0.0 MB  0.0 MB 2013-08-21 13:18   7c2b25     2              
  myvol        0   50 GB  0.0 MB  0.0 MB 2013-08-21 13:55   b54274     2