kvm vm使用sheepdog存储空间

你的名字 2023-08-17 16:56 75阅读 0赞

# 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

#    4.启动VM #

启动vm

virsh create libvirtd.xml

在这里sheepdog是作为vm的数据盘使用，通过vnc可以查看到新添加磁盘sdb

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