.TH MULTIPATH 8 "February 2004" "" "Linux Administrator's Manual"
.SH NAME
multipath \- Device mapper target autoconfig
.SH SYNOPSIS
.B multipath
.RB [\| \-v | \-q \|]
.RB [\| \-d \|]
.RB [\| \-i\ \c
.IR int \|]
.RB [\| \-m\ \c
.IR max_devs \|]
.RB [\| \-p\ \c
.BR failover | multibus | group_by_serial \|]
.RB [\| device \|]
.SH DESCRIPTION
.B multipath
is used to detect multiple paths to devices for fail-over or performance reasons and coalesces them.
.SH OPTIONS
.TP
.B \-v
verbose, print all paths and multipaths
.TP
.B \-q
quiet, no output at all
.TP
.B \-d
dry run, do not create or update devmaps
.TP
.BI \-i " int"
multipath target param: polling interval
.TP
.BI \-m " max_devs"
scan
.I max_devs
devices at most
.TP
.BI \-D " major minor"
update only the devmap the path pointed by
.I major minor
is in
.TP
.BI \-p " policy"
force maps to specified policy:
.RS 1.2i
.TP 1.2i
.B failover
1 path per priority group
.TP
.B multibus
all paths in 1 priority group
.TP
.B group_by_serial
1 priority group per serial
.RE
.TP
.BI device
update only the devmap the path pointed by
.I device
is in
.SH "SEE ALSO"
.BR udev (8),
.BR dmsetup (8)
.BR hotplug (8)
.SH AUTHORS
.B multipath
was developed by Christophe Varoqui, <christophe.varoqui@free.fr> and others.