# This is an example configuration file for device mapper multipath.
# For a complete list of the default configuration values, see
# /usr/share/doc/device-mapper-multipath-0.4.5/multipath.conf.defaults
# For a list of configuration options with descriptions, see
# /usr/share/doc/device-mapper-multipath-0.4.5/multipath.conf.annotated


# Blacklist all devices by default. Remove this to enable multipathing
# on the default devices. 
#devnode_blacklist {
#        devnode "*"
#}

## Use user friendly names, instead of using WWIDs as names.
defaults {
	user_friendly_names yes
}


## By default, devices with vendor = "IBM" and product = "S/390.*" are
## blacklisted. To enable mulitpathing on these devies, uncomment the
## following lines.
#devices {
#	device {
#		vendor                  "IBM"
#		product                 "S/390 DASD ECKD"
#		path_grouping_policy    multibus
#		getuid_callout          "/sbin/dasdview -j -f /dev/%n"
#		path_checker            directio
#	}
#}


##
## This is a template multipath-tools configuration file
## Uncomment the lines relevent to your environment
##
defaults {
	udev_dir		/dev
	polling_interval 	10
	selector		"round-robin 0"
	path_grouping_policy	multibus
	getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
	prio_callout		/bin/true
	path_checker		readsector0
	rr_min_io		100
	rr_weight		priorities
	failback		immediate
	no_path_retry		fail
	user_friendly_name	yes
}
##
## The wwid line in the following blacklist section is shown as an example
## of how to blacklist devices by wwid.  The 3 devnode lines are the
## compiled in default blacklist. If you want to blacklist entire types
## of devices, such as all scsi devices, you should use a devnode line.
## However, if you want to blacklist specific devices, you should use
## a wwid line.  Since there is no guarantee that a specific device will
## not change names on reboot (from /dev/sda to /dev/sdb for example)
## devnode lines are not recommended for blacklisting specific devices.
##
devnode_blacklist {
       wwid 26353900f02796769
	devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
	devnode "^hd[a-z]"
}
#multipaths {
#	multipath {
#		wwid			3600508b4000156d700012000000b0000
#		alias			yellow
#		path_grouping_policy	multibus
#		path_checker		readsector0
#		path_selector		"round-robin 0"
#		failback		manual
#		rr_weight		priorities
#		no_path_retry		5
#	}
#	multipath {
#		wwid			1DEC_____321816758474
#		alias			red
#	}
#}
#devices {
#	device {
#		vendor			"COMPAQ  "
#		product			"HSV110 (C)COMPAQ"
#		path_grouping_policy	multibus
#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
#		path_checker		readsector0
#		path_selector		"round-robin 0"
#		hardware_handler	"0"
#		failback		15
#		rr_weight		priorities
#		no_path_retry		queue
#	}
#	device {
#		vendor			"COMPAQ  "
#		product			"MSA1000         "
#		path_grouping_policy	multibus
#	}
#}