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MPATHCONF(8)		 Linux Administrator's Manual		  MPATHCONF(8)

NAME
       mpathconf - A tool for configuring device-mapper-multipath

SYNOPSIS
       mpathconf [commands] [options]

DESCRIPTION
       mpathconf  is  a	 utility that creates or modifies /etc/multipath.conf.
       It can  enable  or  disable  multipathing  and  configure  some	common
       options.	  mpathconf  can  also load the dm_multipath module, start and
       stop the multipathd daemon, and configure  the  multipathd  service  to
       start automatically or not. If mpathconf is called with no commands, it
       will display the current configuration.

       The default options for mpathconf are --with_module  The	 --with_multi‐
       pathd  option  is  not set by default.  Enabling multipathing will load
       the dm_multipath module but it will not immediately start it.  This  is
       so  that users can manually edit their config file if necessary, before
       starting multipathd.

       If /etc/multipath.conf already exists, mpathconf will edit  it.	If  it
       does  not exist, mpathconf will use /usr/share/doc/device-mapper-multi‐
       path-0.4.9/multipath.conf  as  the  starting  file.   This   file   has
       user_friendly_names  set.  If  this file does not exist, mpathconf will
       create /etc/multipath.conf from scratch.	 For most  users,  this	 means
       that  user_friendly_names  will	be set by default, unless they use the
       --user_friendly_names n command.

COMMANDS
       --enable
	      Removes any line that  blacklists	 all  device  nodes  from  the
	      /etc/multipath.conf blacklist section.

       --disable
	      Adds  a line that blacklists all device nodes to the /etc/multi‐
	      path.conf blacklist section. If no blacklist section exists,  it
	      will create one.

       --user_friendly_name  { y | n }
	      If  set  to y, this adds the line user_friendly_names yes to the
	      /etc/multipath.conf defaults section. If set to n, this  removes
	      the  line,  if  present. This command can be used along with any
	      other command.

       --find_multipaths { y | n }
	      If set to y, this adds  the  line	 find_multipaths  yes  to  the
	      /etc/multipath.conf  defaults section. If set to n, this removes
	      the line, if present. This command can be used aldong  with  any
	      other command.

OPTIONS
       --with_module { y | n }
	      If set to y, this runs modprobe dm_multipath to install the mul‐
	      tipath modules. This option only works with  the	--enable  com‐
	      mand. This option is set to y by default.

       --with_multipathd { y | n }
	      If  set  to  y,  this runs service multipathd start to start the
	      multipathd daemon on --enable, service multipathd stop to	 start
	      the  multipathd  daemon  on  --disable,  and  service multipathd
	      reload to reconfigure  multipathd	 on  --user_frindly_names  and
	      --find_multipaths.  This option is set to n by default.

FILES
       /etc/multipath.conf

SEE ALSO
       multipath.conf(5),   modprobe(8),   multipath(8),  multipathd(8),  ser‐
       vice(8),

AUTHOR
       Benjamin Marzinski <bmarzins@redhat.com>

				   June 2010			  MPATHCONF(8)

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