1、检查安装包(linux系统自带的多路径安装包：multipath)

rpm -qa | grep device-mappercp

2、将multipath配置文件方在/home/multipath.conf

cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf

/etc/multipath.conf

3、编辑multipath.conf文件

vim /etc/multipath.conf

device {

vendor                      "HUAWEI"

product                     "XSG1"

path_grouping_policy

multibus

path_checker                tur

path_selector              "round-robin 0"

failback                     immediate

}

4、时期配置文件生效并查看状态，配置修改完毕后，依次执行

multipath—F

systemctl restart multipath.service

systemctl reload multipathd.service

multipath –v3

multipath –ll

5、linux中multipath生效后执行multipath –ll回显如下：

mpathe(36845b121004b71c40025afa300000006) dm-5 HUAWEI  ,XSG1

size=1021G

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:6

sdg 8:96  active ready  running

mpathd(36845b121004b71c40025922a00000005) dm-4 HUAWEI  ,XSG1

size=1.0T

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:5

sdf 8:80  active ready  running

mpathc(36845b121004b71c4002566fa00000004) dm-3 HUAWEI  ,XSG1

size=4.0T

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:4

sde 8:64  active ready  running

mpathb(36845b121004b71c4000fe09f00000003) dm-2 HUAWEI  ,XSG1

size=8.0T

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:3

sdd 8:48  active ready  running

mpatha(36845b121004b71c4000fcaa800000002) dm-1 HUAWEI  ,XSG1

size=8.0T

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:2

sdc 8:32  active ready  running

mpathf(36845b121004b71c40025485600000001) dm-0 HUAWEI  ,XSG1

size=4.0T

features='0' hwhandler='0' wp=rw

`-+-

policy='round-robin 0' prio=1 status=active

`- 9:0:0:1

sdb 8:16  active ready  running

[root@localhost ~]# fdisk -l

其中mpatha、mpathb、mpathc、mpathd、mpathe、mpathf即为存储侧映射的6个lun

ls  /dev/mapper/

mpatha、mpathb、mpathc、mpathd、mpathe、mpathf

parted /dev/mapper/mpatha