rhel6 multipath多路径安装配置

系统：rhel6.5

iscsi挂载存储

rpm -ivh iscsi-initiator-utils-6.2.0.873-10.el6.x86_64.rpm  #安装iscsi包
service iscsi start
service iscsid start

修改开机自动发现iscsi存储

vim /etc/iscsi/initiatorname.iscsi      #修改iqn
InitiatorName=iqn.2006-01.com.openfiler:tsn.6041375b138b        #虚拟存储id

发现存储

iscsiadm -m discovery -t st -p 192.168.3.231:3260   #存储ip地址

登录多路径存储

iscsiadm -m node --loginall=all     #全部登陆
iscsiadm -m session     #查看登陆路径
tcp: [1] 192.168.3.231:3260,1 iqn.2006-01.com.openfiler:tsn.6041375b138b
tcp: [2] 192.168.3.232:3260,1 iqn.2006-01.com.openfiler:tsn.6041375b138b
tcp: [3] 192.168.3.233:3260,1 iqn.2006-01.com.openfiler:tsn.6041375b138b
tcp: [4] 192.168.3.234:3260,1 iqn.2006-01.com.openfiler:tsn.6041375b138b

过滤查看多路径磁盘

fdisk -l
fdisk -l|grep "10.7 GB"     #过滤10.7 GB容量磁盘
Disk /dev/sdd: 10.7 GB, 10737418240 bytes
Disk /dev/sde: 10.7 GB, 10737418240 bytes
Disk /dev/sdg: 10.7 GB, 10737418240 bytes
Disk /dev/sdj: 10.7 GB, 10737418240 bytes

multipath多路径安装配置

rpm -ivh device-mapper-1.02.79-8.el6.x86_64.rpm
rpm -ivh device-mapper-multipath-libs-0.4.9-72.el6.x86_64.rpm
rpm -ivh device-mapper-multipath-0.4.9-72.el6.x86_64.rpm

检查内核文件

modprobe -l |grep multipath
multipath -ll       #查看多路径状态

过滤磁盘并记录多路径磁盘 盘符

fdisk -l|grep "10.7 GB"
Disk /dev/sdd: 10.7 GB, 10737418240 bytes
Disk /dev/sde: 10.7 GB, 10737418240 bytes
Disk /dev/sdh: 10.7 GB, 10737418240 bytes
Disk /dev/sdi: 10.7 GB, 10737418240 bytes

编辑配置文件

cp /etc/multipath.conf /etc/multipath.conf.bak
echo > /etc/multipath.conf
vim /etc/multipath.conf

defaults {
        user_friendly_names yes
        find_multipaths yes
}

blacklist {
        wwid 36000c29cb6821173f0fc0f7a6142814d
}

multipaths {
        multipath {
                wwid                 14f504e46494c4552496f626d72502d346a724c2d69774353
                alias                   oracle-fs01
                path_grouping_policy    multibus
                path_selector           "round-robin 0"
                failback                immediate
        }
        multipath {
                wwid                 14f504e46494c4552776f684d78732d6e444a702d306a6661
                alias                   oracle-fs02
                path_grouping_policy    multibus
                path_selector           "round-robin 0"
                failback                immediate
        }
}

devices {
       device {
               vendor                  "openfiler"
               product                 "virtual disk"   
               path_grouping_policy    multibus
               path_checker            readsector0
               path_selector           "round-robin 0"
               hardware_handler        "0"
       }
}

删除当前多路径并重建多路径

multipath -F        #删除当前多路径
multipath -v2       #重建当前多路径
multipath -ll       #查看当前多路径状态

格式化并分区多路径磁盘

分区多路径磁盘

fdisk -l|grep /dev/mapper
fdisk -c /dev/mapper/oracle-fs01
mkfs.ext4 /dev/mapper/oracle-fs01p1
df -Th          #查看磁盘

编辑开机文件并加入开机自动挂载磁盘

vim /etc/fstab
/dev/mapper/oracle-fs01p1       /data01         ext4    defaults        0 0
/dev/mapper/oracle-fs02p1       /data02         ext4    defaults        0 0

重启主机

reboot