Opbzil

DM-Multipath

Device Mapper Commands

Command	Descriptions
multipath -h	Prints usage information
multipath -ll	Displays the current multipath topology using all available information (sysfs, the device mapper, path checkers, and so on)
multipath	Re-aggregates multipathing device with simplified output.
multipath -f <multipath_dev_node>	Flushes out Device Mapper for the specified multipathing device. Used if the underlying physical devices are deleted/unmapped.
multipath -F	Flushes out all unused multipathing device maps.