Comment 4 for bug 1135453

if i remember correctly, i made the config from the HP MSA recommendations for multipathd.conf

here my multipathd.conf config:

defaults {
         udev_dir /dev
         polling_interval 30
         selector "round-robin 0"
         path_grouping_policy multibus
         getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
         prio_callout /bin/true
         path_checker readsector0
         prio const
         rr_min_io 100
         rr_weight uniform
         failback immediate
         no_path_retry 12
         user_friendly_name yes
         hardware_handler "0"
}
blacklist {
         devnode "sda"
         devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
         devnode "^hd[a-z][[0-9]*]"
         devnode "^vd[a-z]"
         devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
multipaths {
         multipath {
                 wwid mypseudorandomwwid901243012701704
                 alias mydevname
         }
}