V7000 Linux 多链路配置方式

V7000 Linux多链路配置方式

1. 查看V7000支持的硬件列表，设备驱动，微码和推荐的多链路软件

https:///support/docview.wss?rs=591&uid=ssg1S1003703#_RH50

根据环境进行设备微码升级，驱动安装。

2. 确认multipath是否已经安装

3. 配置/etc/multipath.conf文件

blacklist {

devnode "^sda"

}

defaults {

polling_interval 30

failback immediate

no_path_retry 5

rr_min_io 100

path_checker tur

user_friendly_names yes

}

multipaths

{

multipath

wwid 3600508b30090f5d0d2a9d6459049 (通过multipath –ll看)

alias xxx（要赋予的别名）

{path_grouping_policy failover

path_checker tur

path_selector "round-robin 0"}

multipath

wwid

alias

}

# SVC

device {

vendor "IBM"

product "2145"

path_grouping_policy group_by_prio

prio_callout "/sbin/mpath_prio_alua /dev/%n"

}

4. 设置开机启动

#chkconfig multipathd on

#chkconfig --level 345 multipathd on

5. 执行/etc/init.d/multipathd start 启动DMMP进程，执行 multipath –F(删除路径) multipath -v2 查找设备，执行multipath -ll 检查是否找到设备，如果出现一下内容，说明配置成功：

mpath1 (36005076801860022900000000000019a) IBM,2145

[size=2.0G][features=0][hwhandler=0]

\_ round-robin 0 [prio=200][ enabled]

\_ 4:0:0:1 sdd 8:48 [active][ready]

\_ 5:0:0:1 sdt 65:48 [active][ready]

\_ round-robin 0 [prio=40][ active]

\_ 4:0:2:1 sdak 66:64 [active][ready]

\_ 5:0:2:1 sdal 66:80 [active][ready]

6. 查看/dev/mapper下的设备

选取/dev/mapper/xxxx（刚刚写的别名）作为设备。