multipath.conf

## Use user friendly names, instead of using WWIDs as names.
defaults {
        user_friendly_names yes
        find_multipaths     yes
}

blacklist {
        device {
                vendor                  "HP"
                product                 "LOGICAL VOLUME"
        }
}

devices {
        device {
                vendor                  "COMPAQ"
                product                 "HSV1*"
                path_grouping_policy    group_by_prio
                hardware_handler        "1 hp-sw"
                path_checker            hp_sw
                features                "1 queue_if_no_path"
                prio                    "hp_sw"
                failback                immediate
        }
        device {
                vendor                  "DGC"
                product                 "*"
                prio                    "alua"
                path_grouping_policy    group_by_prio
                features                "1 queue_if_no_path"
                failback                immediate
                hardware_handler        "1 alua"
        }
        device {
                vendor                  "HITACHI"
                product                 "DF600F"
                path_grouping_policy    multibus
                path_checker            tur
                features                "1 queue_if_no_path"
                no_path_retry           1
                failback                immediate
        }
}