# This is a basic configuration file with some examples, for device mapper

# multipath.

#

# For a complete list of the default configuration values, run either

# multipath -t

# or

# multipathd show config

#

# For a list of configuration options with descriptions, see the multipath.conf

# man page

## 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

	find_multipaths 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		"/lib/udev/scsi_id --whitelisted --device=/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          "/lib/udev/scsi_id --whitelisted --device=/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

#	}

#}