# This is a basic configuration file with some examples, for device mapper
# multipath.
# For a complete list of the default configuration values, see
# /usr/share/doc/device-mapper-multipath-0.4.8/multipath.conf.defaults
# For a list of configuration options with descriptions, see
# /usr/share/doc/device-mapper-multipath-0.4.8/multipath.conf.annotated


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

# By default, devices with vendor = "IBM" and product = "S/390.*" are
# blacklisted. To enable mulitpathing on these devies, uncomment the
# following lines.
blacklist_exceptions {
	device {
		vendor	"IBM"
		product	"S/390.*"
	}
}

## Use user friendly names, instead of using WWIDs as names.
defaults {
	user_friendly_names yes
}
#
# Here is an example of how to configure some standard options.
#

defaults {
	udev_dir		/dev
	polling_interval 	10
	selector		"round-robin 0"
	path_grouping_policy	multibus
	getuid_callout		"/sbin/scsi_id --whitelisted /dev/%n"
	prio			alua
	path_checker		readsector0
	rr_min_io		100
	max_fds			8192
	rr_weight		priorities
	failback		immediate
	no_path_retry		fail
	user_friendly_names	yes
}
#
# The wwid line in the following blacklist section is shown as an example
# of how to blacklist devices by wwid.  The 2 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.
#
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 --whitelisted /dev/%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
	}
}