NAME
multipath - Device mapper target autoconfig
SYNOPSIS
multipath [-v verbosity] [-d] [-h|-l|-ll|-f|-t|-F] [-p failover|multibus|group_by_serial|group_by_prio|group_by_node_name] [device]
DESCRIPTION
multipath is used to detect multiple paths to devices for fail-over or performance reasons and coalesces them
OPTIONS
-v level | |
verbosity, print all paths and multipaths | |
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-h | print usage text | ||||||||||||||||
-d | dry run, do not create or update devmaps | ||||||||||||||||
-l | show the current multipath topology from information fetched in sysfs and the device mapper | ||||||||||||||||
-ll | show the current multipath topology from all available information (sysfs, the device mapper, path checkers ...) | ||||||||||||||||
-f | flush a multipath device map specified as parameter, if unused | ||||||||||||||||
-F | flush all unused multipath device maps | ||||||||||||||||
-t | print internal hardware table to stdout | ||||||||||||||||
-p policy | force maps to specified policy: | ||||||||||||||||
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device | update only the devmap the path pointed by device is in. device is in the /dev/sdb (as shown by udev in the $DEVNAME variable) or major:minor format. device may alternatively be a multipath mapname | ||||||||||||||||
SEE ALSO
multipathd(8), multipath.conf(5), kpartx(8), udev(8), dmsetup(8) hotplug(8)
AUTHORS
multipath was developed by Christophe Varoqui, <christophe.varoqui@free.fr> and others.