1. 配置共享磁盘
1.1. 主机关机的情况下，添加4块硬盘，每块磁盘设置如下
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1.2. 另外一台主机添加上面已经存在的磁盘，同样设置
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1.3. 修改两台虚拟机的配置文件（.vmx）
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disk.locking = "FALSE" disk.EnableUUID = "TRUE" scsi1:1.SharedBus = "Virtual" scsi1:2.SharedBus = "Virtual" scsi1:3.SharedBus = "Virtual" scsi1:4.SharedBus = "Virtual" |
1.4. 将两台服务器重启，检查是否添加成功
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2. 多路径multipath安装及配置
2.1. 下载multipath
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yum list|grep multipath yum -y install device-mapper-multipath.x86_64 |
2.2. 查看磁盘uuid
lsscsi -i
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2.3. 将共享存储的uuid写入下面的文件中
vi /etc/multipath/wwids
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/36000c29bbd354f3357b61608127d00dc/ /36000c294832a5fe38bc642f71ad33325/ /36000c29250c0ab3e0c01145e0d1b2c1e/ /36000c29bb24affd674793982fe27222f/ |
2.4. 编写配置文件/etc/multipath.conf
查找multipath.conf文件
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find / -name "multipath.conf"
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将找到的multipath.conf拷贝到/etc目录下面
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cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc |
编辑/etc/multipath.conf文件，末尾添加
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multipaths { multipath { wwid 36000c29bbd354f3357b61608127d00dc alias mpathb } multipath { wwid 36000c294832a5fe38bc642f71ad33325 alias mpathc } multipath { wwid 36000c29250c0ab3e0c01145e0d1b2c1e alias mpathd } multipath { wwid 36000c29bb24affd674793982fe27222f alias mpathe } } |
2.5. 重启multipathd
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systemctl restart multipathd.service systemctl enable multipathd.service systemctl status multipathd.service |
2.6. 开启多路径
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multipath -v3 |
2.7. 查看多路径是否成功
multipath -ll
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3. udev配置
3.1. 磁盘检查
按如图所示，有4个多路径mpathb ，mpathc，mpathd， mpathe
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3.2. 新建udev规则文件
执行如下，获取mpathb,mpathc,mpathd,mpathe的UUID
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>1.log;j=1;for i in mpathb mpathc mpathd mpathe; do echo ACTION==\"add\|change\", ENV{DM_UUID}==\"$(udevadm info --query=all --name=/dev/mapper/$i |grep -i dm_uuid|awk -F'=' '{print $2}')\", , SYMLINK+=\"rac/asmdisk$j\", OWNER=\"dmdba\", GROUP=\"dinstall\", MODE=\"0660\", OPTIONS=\"nowatch\"|tee -a 1.log; let j=j+1; done; cat 1.log > /etc/udev/rules.d/99-dm-asmdevices.rules |
手动修改SYMLINK
vi /etc/udev/rules.d/99-dm-asmdevices.rules
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ACTION=="add|change", ENV{DM_UUID}=="mpath-36000c29bbd354f3357b61608127d00dc", , SYMLINK+="rac/asmdcr", OWNER="dmdba", GROUP="dinstall", MODE="0660", OPTIONS="nowatch" ACTION=="add|change", ENV{DM_UUID}=="mpath-36000c294832a5fe38bc642f71ad33325", , SYMLINK+="rac/asmvote", OWNER="dmdba", GROUP="dinstall", MODE="0660", OPTIONS="nowatch" ACTION=="add|change", ENV{DM_UUID}=="mpath-36000c29250c0ab3e0c01145e0d1b2c1e", , SYMLINK+="rac/asmlog", OWNER="dmdba", GROUP="dinstall", MODE="0660", OPTIONS="nowatch" ACTION=="add|change", ENV{DM_UUID}=="mpath-36000c29bb24affd674793982fe27222f", , SYMLINK+="rac/asmdata01", OWNER="dmdba", GROUP="dinstall", MODE="0660", OPTIONS="nowatch" |
3.3. 完成裸设备绑定，重新加载udev规则
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/sbin/udevadm control --reload-rules /sbin/udevadm trigger --type=devices --action=change |
3.4. 重启主机后，检查是否绑定
ls -lsa /dev/rac/asm*
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3.5. 查看裸设备大小
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blockdev --getsize64 /dev/rac/asmvote blockdev --getsize64 /dev/rac/asmdcr blockdev --getsize64 /dev/rac/asmlog blockdev --getsize64 /dev/rac/asmdata01
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