defaults { polling_interval 2 path_selector "round-robin 0" path_grouping_policy multibus getuid_callout "/lib/udev/scsi_id -g -u -d /dev/%n" rr_min_io 100 failback immediate no_path_retry fail } devices { device { vendor "SYNOLOGY" getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" polling_interval "10" path_checker "directio" failback "immediate" prio_callout "none" no_path_retry "fail" path_selector "service-time 0" } } blacklist { wwid * devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st|sda)[0-9]*" devnode "^hd[a-z][0-9]*" devnode "^cciss.c[0-9]d[0-9].*" } blacklist_exceptions { wwid "36001405300b69b5df12cd3044d9577d3" } multipaths { multipath { wwid "36001405300b69b5df12cd3044d9577d3" alias Storage_Synology } }