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" }