defaults {
  user_friendly_names yes
  find_multipaths yes
  rr_weight uniform
  path_selector "queue-length 0"
  path_grouping_policy multibus
  polling_interval 30
  path_checker tur
  checker_timeout 300
  failback immediate
  verbosity 2
  rr_min_io 1
  rr_min_io_rq 1
  dev_loss_tmo 9000
  fast_io_fail_tmo off
  no_path_retry queue
  skip_kpartx no
  features "2 queue_mode bio"
}