# 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-0.4.7/multipath.conf.defaults
# For a list of configuration options with descriptions, see
# /usr/share/doc/device-mapper-multipath-0.4.7/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.

# this is probably not needed
blacklist_exceptions {
	device {
		vendor	"NEXSAN"
		product	"SATABeast2"
	}
#	devnode "^sd[b-z].*"
}

## Use user friendly names, instead of using WWIDs as names.
defaults {
	find_multipaths yes
	user_friendly_names yes
}
##
## Here is an example of how to configure some standard options.
##
#
defaults {
	find_multipaths yes
	udev_dir		/dev
	polling_interval 	10
	path_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
	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 36000402002fc871c675a04d100000000
alias mpatha
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04d200000000
alias mpathb
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04d300000000
alias mpathc
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04a000000000
alias mpathd
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04a100000000
alias mpathe
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04a200000000
alias mpathf
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04a300000000
alias mpathg
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}

multipath {
wwid 36000402002fc871c675a04a400000000
alias mpathh
path_grouping_policy group_by_prio
prio alua
features "1 queue_if_no_path"
path_selector "round-robin 0"
path_checker readsector0
failback 300
rr_weight priorities
no_path_retry 5
rr_min_io 16
}


}

devices {

	device {
		vendor			"NEXSAN  "
		product			"SATAB.*"
		path_grouping_policy	group_by_prio
		getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
		prio alua
		path_selector		"queue-length 0"
		features                "1 queue_if_no_path"
		path_checker tur
		path_selector "round-robin 0"
		hardware_handler "0"
		rr_weight priorities
		no_path_retry 5
		failback 300
		rr_min_io 16

	}

}

}