Multipath Configuration for Huawei OceanStor & Dorado Series Storage

To configure multipath on RedHat Enterprise Linux (RHEL) 7.x. I recommend you to use this configuration on /etc/multipath.conf:

devices {
         device {
                   vendor                  "HUAWEI"
                   product                 "XSG1"
                   path_grouping_policy    multibus
                   path_checker            tur
                   prio                    const
                   path_selector           "service-time 0"
                   failback                immediate
                   no_path_retry           15
defaults {
        user_friendly_names yes
        find_multipaths yes

And then you can do reload service of multipathd with command:

systemctl reload multipathd

This configuration will define huawei storage, both OceanStor and Dorado series, on multipathd. As note, this configuration will activate ALUA. Read more about Huawei ALUA. By default Huawei Storage will set ALUA enabled.

And to detect new LUNs with command:


And there is a suggestion from RedHat about multipath configuration on Huawei Storage as follows: