Using multipath on Intel, Multi-flex requires the following to be added to the /etc/multipath-enabled.conf file (below the “devices {“:


Unknown macro: {
vendor "Intel"
product "Multi-Flex"
path_grouping_policy "group_by_prio"
getuid_callout "/lib/udev/scsi_id -g -u /dev/%n"
prio_callout "/sbin/mpath_prio_alua /dev/%n"
path_checker tur
path_selector "round-robin 0"
failback immediate
rr_weight uniform
rr_min_io 100
no_path_retry queue
features "1 queue_if_no_path"

The above was never included in the multipath configuration file. Credit goes to the following Linux web site –

James Cannon