Multipath DE4000

multipath-de4000.md

devices {
  device {
    vendor "LENOVO"
    product "DE_Series"
    product_blacklist "Universal Xport"
    path_grouping_policy "group_by_prio"
    path_checker "rdac"
    features "2 pg_init_retries 50"
    hardware_handler "1 rdac"
    prio "rdac"
    failback immediate
    rr_weight "uniform"
    no_path_retry 30
    retain_attached_hw_handler yes
    detect_prio yes
  }
}

blacklist {
  devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
  devnode "^hd[a-z]"
}

defaults {
  polling_interval 5
  path_selector "round-robin 0"
  user_friendly_names yes
  path_checker directio
}