CentOS 6.5下配置Ceph作为KVM后端存储

矫情吗；* 2022-08-13 07:28 401阅读 0赞

# 配置环境 #

Centos 6.5 X86\_64

Ceph 0.80.7

Qemu-kvm 0.12.1.2

# 配置步骤 #

ceph的安装步骤不在这里说明，网上有太多，这里仅介绍如何配置ceph作为kvm的后端存储使用。

## qemu安装 ##

#git clone git://git.qemu-project.org/qemu.git
    #cd qemu
    #./configure –enable-rbd –enable-glusterfs
    #make
    #make install

## 配置ceph ##

编写密钥文件secret.xml

<secret ephemeral='no' private='no'>
       <usage type='ceph'>
         <name>client.admin secret</name>
       </usage>
    </secret>

生成密钥

virsh secret-define --file secret.xml

将密钥文件与ceph密钥文件进行匹配

virsh secret-set-value  76e3a541-b997-58ac-f7bd-77dd7d4347cb AQAREH1QkNDNCBaac03ZICi/CePnRDS+vGyrqQ==

创建rbd用于kvm使用

#rbd create rbd-vol1 --size 20480

## 创建VM ##

编写xml文件如下

<domain type='kvm'>
        <name>ceph-linux</name>
        <os>
        <type arch='x86_64' machine='pc'>hvm</type>
        <boot dev='hd'/>
       </os>
        <features>
            <acpi/>
        </features>
        <memory>4096000</memory>
        <vcpu>4</vcpu>
        <devices>
            <emulator>/root/qemu/x86_64-softmmu/qemu-system-x86_64</emulator>
    <disk type='network' device='disk'>
       <driver name='qemu' type='raw' cache='none'/>
       <auth username='admin'>
            <secret type='ceph' uuid='76e3a541-b997-58ac-f7bd-77dd7d4347cb' />
       </auth>
       <source protocol='rbd' name='rbd/rbd-vol1'>
            <host name='10.10.200.61' port='6789'/>
            <host name='10.10.200.62' port='6789'/>
        </source>
       <target dev='vda' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
                <source file='/var/lib/libvirt/images/CentOS-6.0-x86_64-bin-DVD1.iso'/>
                <target dev='hdc'/>
                <readonly/>
            </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>

启动VM

#virsh create ceph-centos.xml

通过以上操作就完成了配置ceph作为kvm的后端存储使用