Just to clear one more thing up. There is nothing special about the "dummy" strings in the dummy section. You could use "this is gross hack" and it would work just as well. The only thing is to choose a string that you can be reasonably sure that storage hardware makers won't use for their vendor and product names on their devices. -Ben > devices { > device { > vendor "WINSYS" > product "SF2372" > path_grouping_policy group_by_prio > prio_callout "/bin/bash /sbin/mpath_prio_one" > } > device { > vendor "dummy" > product "dummy" > prio_callout "/sbin/mpath_prio_one" > } > } -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel