yum -y install device-mapper-multipath

啟動守護進程

mpathconf --enable --with_multipath y

啟動multipath 進程

service multipath start

查看多路徑設備

multipath -v2

multipath -ll

配置multipathd 使其正常工作，編輯/etc/multipath.conf，開放如下內容：

defaults {

udev_dir /dev

polling_interval 10

selector "round-robin 0"

path_grouping_policy multibus

getuid_callout "/sbin/scsi_id -g -u -s /block/%n"

prio_callout none

path_checker readsector0

rr_min_io 100

max_fds 8192

rr_weight priorities

failback immediate

no_path_retry fail

user_friendly_names yes

}

blacklist {

wwid 26353900f02796769

devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"

devnode "^hd[a-z]"

}

4、並關閉如下內容

#blacklist {

# devnode "*"

#}

#defaults {

27 # user_friendly_names yes

28 #}

5、完成之後執行如下命令發現多路徑：

[root@RKDB01 Server]# modprobe dm-multipath

[root@RKDB01 Server]# multipath -F

[root@RKDB01 Server]# multipath dm-multipath

[root@RKDB01 Server]# multipath dm-round-robin

[root@RKDB01 Server]# service multipathd restart

正在關閉multipathd 端口監控程序： [確定]

正在啟動守護進程multipathd： [確定]

[root@RKDB01 Server]# multipath -v2

[root@RKDB01 Server]# multipath -ll

mpath1 (3600d02310000011b16a5d57c6a1bd99a) dm-0 TOYOU,NetStor_iSUM510

[size=3.3T][features=0][hwhandler=0][rw]

\_ round-robin 0 [prio=2][ena bled]

\_ 1:0:0:0 sdb 8:16 [failed][ready]

\_ 1:0:1:0 sdc 8:32 [failed][ready]

安裝配置linux6多路徑