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authorroot <root@rshg054.dnsready.net>2013-02-10 01:12:52 -0800
committerroot <root@rshg054.dnsready.net>2013-02-10 01:12:52 -0800
commit1bb2648cde916ac27d3dd75d7b64a4ddc89787b7 (patch)
tree016bfa1969323404c37dbef29cfc7242a5a8e9f3 /community/multipath-tools/multipath.conf.annotated
parente9c244cac8e5dc1c59c7e8b7bc885fef04224b70 (diff)
Sun Feb 10 01:12:35 PST 2013
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-##
-## This is a template multipath-tools configuration file
-## Uncomment the lines relevent to your environment
-##
-#
-##
-## name : defaults
-## desc : multipath-tools default settings
-##
-#defaults {
-# #
-# # name : udev_dir
-# # desc : directory where udev creates its device nodes
-# # default : /dev
-# #
-# udev_dir /dev
-#
-# #
-# # name : polling_interval
-# # scope : multipathd
-# # desc : interval between two path checks in seconds
-# # default : 5
-# #
-# polling_interval 10
-#
-# #
-# # name : selector
-# # scope : multipath
-# # desc : the default path selector algorithm to use
-# # these algorithms are offered by the kernel multipath target
-# # values : "round-robin 0"
-# # default : "round-robin 0"
-# #
-# selector "round-robin 0"
-#
-# #
-# # name : path_grouping_policy
-# # scope : multipath
-# # desc : the default path grouping policy to apply to unspecified
-# # multipaths
-# # default : multibus
-# #
-# path_grouping_policy multibus
-#
-# #
-# # name : getuid_callout
-# # scope : multipath
-# # desc : the default program and args to callout to obtain a unique
-# # path identifier. Absolute path required
-# # default : /usr/lib/udev/scsi_id -g -u -s
-# #
-# getuid_callout "/usr/lib/udev/scsi_id -g -u -s /block/%n"
-#
-# #
-# # name : prio_callout
-# # scope : multipath
-# # desc : the default program and args to callout to obtain a path
-# # priority value. The ALUA bits in SPC-3 provide an
-# # exploitable prio value for example. "none" is a valid value
-# # default : (null)
-# #
-# #prio_callout "/bin/true"
-#
-# #
-# # name : path_checker
-# # scope : multipath & multipathd
-# # desc : the default method used to determine the paths' state
-# # values : readsector0|tur|emc_clariion|hp_sw|directio
-# # default : directio
-# #
-# #path_checker directio
-#
-# #
-# # name : rr_min_io
-# # scope : multipath
-# # desc : the number of IO to route to a path before switching
-# # to the next in the same path group
-# # default : 1000
-# #
-# rr_min_io 100
-#
-# #
-# # name : rr_weight
-# # scope : multipath
-# # desc : if set to priorities the multipath configurator will assign
-# # path weights as "path prio * rr_min_io"
-# # values : priorities|uniform
-# # default : uniform
-# #
-# rr_weight priorities
-#
-# #
-# # name : failback
-# # scope : multipathd
-# # desc : tell the daemon to manage path group failback, or not to.
-# # 0 means immediate failback, values >0 means deffered failback
-# # expressed in seconds.
-# # values : manual|immediate|n > 0
-# # default : immediate
-# #
-# failback manual
-#
-# #
-# # name : no_path_retry
-# # scope : multipath & multipathd
-# # desc : tell the number of retries until disable queueing, or
-# # "fail" means immediate failure (no queueing),
-# # "queue" means never stop queueing
-# # values : queue|fail|n (>0)
-# # default : (null)
-# #
-# #no_path_retry queue
-#
-# #
-# # name : user_friendly_names
-# # scope : multipath
-# # desc : If set to "yes", using the bindings file
-# # /var/lib/multipath/bindings to assign a persistent and
-# # unique alias to the multipath, in the form of mpath<n>.
-# # If set to "no" use the WWID as the alias. In either case
-# # this be will be overriden by any specific aliases in this
-# # file.
-# # values : yes|no
-# # default : no
-# user_friendly_names no
-#
-#}
-#
-##
-## name : blacklist
-## scope : multipath & multipathd
-## desc : list of device names to discard as not multipath candidates
-## default : cciss, fd, hd, md, dm, sr, scd, st, ram, raw, loop
-##
-#blacklist {
-# wwid 26353900f02796769
-# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
-# devnode "^hd[a-z][[0-9]*]"
-# devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
-# device {
-# vendor DEC.*
-# product MSA[15]00
-# }
-#}
-##
-## name : blacklist_exceptions
-## scope : multipath & multipathd
-## desc : list of device names to be treated as multipath candidates
-## even if they are on the blacklist.
-## Note: blacklist exceptions are only valid in the same class.
-## It is not possible to blacklist devices using the devnode keyword
-## and to exclude some devices of them using the wwid keyword.
-## default : -
-##
-#blacklist_exceptions {
-# devnode "^dasd[c-d]+[0-9]*"
-# wwid "IBM.75000000092461.4d00.34"
-# wwid "IBM.75000000092461.4d00.35"
-# wwid "IBM.75000000092461.4d00.36"
-#}
-#
-##
-## name : multipaths
-## scope : multipath & multipathd
-## desc : list of multipaths finest-grained settings
-##
-#multipaths {
-# #
-# # name : multipath
-# # scope : multipath & multipathd
-# # desc : container for settings that apply to one specific multipath
-# #
-# multipath {
-# #
-# # name : wwid
-# # scope : multipath & multipathd
-# # desc : index of the container
-# #
-# wwid 3600508b4000156d700012000000b0000
-#
-# #
-# # name : alias
-# # scope : multipath
-# # desc : symbolic name for the multipath
-# #
-# alias yellow
-#
-# #
-# # name : path_grouping_policy
-# # scope : multipath
-# # desc : path grouping policy to apply to this multipath
-# # values : failover, multibus, group_by_serial
-# # default : failover
-# #
-# path_grouping_policy multibus
-#
-# #
-# # name : path_checker
-# # scope : multipathd
-# # desc : path checking alorithm to use to check path state
-# # values : readsector0|tur|emc_clariion|hp_sw|directio
-# # default : directio
-# #
-# # path_checker directio
-#
-# #
-# # name : path_selector
-# # desc : the path selector algorithm to use for this mpath
-# # these algo are offered by the kernel mpath target
-# # values : "round-robin 0"
-# # default : "round-robin 0"
-# #
-# path_selector "round-robin 0"
-#
-# #
-# # name : failback
-# # scope : multipathd
-# # desc : tell the daemon to manage path group failback, or not to.
-# # 0 means immediate failback, values >0 means deffered failback
-# # expressed in seconds.
-# # values : manual|immediate|n > 0
-# # default : immediate
-# #
-# failback manual
-#
-# #
-# # name : no_path_retry
-# # scope : multipath & multipathd
-# # desc : tell the number of retries until disable queueing, or
-# # "fail" means immediate failure (no queueing),
-# # "queue" means never stop queueing
-# # values : queue|fail|n (>0)
-# # default : (null)
-# #
-# #no_path_retry queue
-#
-# #
-# # name : rr_min_io
-# # scope : multipath
-# # desc : the number of IO to route to a path before switching
-# # to the next in the same path group
-# # default : 1000
-# #
-# rr_min_io 100
-# }
-# multipath {
-# wwid 1DEC_____321816758474
-# alias red
-# rr_weight priorities
-# }
-#}
-#
-##
-## name : devices
-## scope : multipath & multipathd
-## desc : list of per storage controller settings
-## overrides default settings (device_maps block)
-## overriden by per multipath settings (multipaths block)
-##
-#devices {
-# #
-# # name : device
-# # scope : multipath & multipathd
-# # desc : settings for this specific storage controller
-# #
-# device {
-# #
-# # name : vendor, product
-# # scope : multipath & multipathd
-# # desc : index for the block
-# #
-# vendor "COMPAQ "
-# product "HSV110 (C)COMPAQ"
-#
-# #
-# # name : path_grouping_policy
-# # scope : multipath
-# # desc : path grouping policy to apply to multipath hosted
-# # by this storage controller
-# # values : failover = 1 path per priority group
-# # multibus = all valid paths in 1 priority
-# # group
-# # group_by_serial = 1 priority group per detected
-# # serial number
-# # default : failover
-# #
-# path_grouping_policy multibus
-#
-# #
-# # name : getuid_callout
-# # scope : multipath
-# # desc : the program and args to callout to obtain a unique
-# # path identifier. Absolute path required
-# # default : /usr/lib/udev/scsi_id -g -u -s
-# #
-# getuid_callout "/usr/lib/udev/scsi_id -g -u -s /block/%n"
-#
-# #
-# # name : prio_callout
-# # scope : multipath
-# # desc : the program and args to callout to obtain a path
-# # weight. Weights are summed for each path group to
-# # determine the next PG to use case of failure.
-# # "none" is a valid value.
-# # default : no callout, all paths equals
-# #
-# prio_callout "/sbin/mpath_prio_balance_units %d"
-#
-# #
-# # name : path_checker
-# # scope : multipathd
-# # desc : path checking alorithm to use to check path state
-# # values : readsector0|tur|emc_clariion|hp_sw|directio
-# # default : directio
-# #
-# path_checker directio
-#
-# #
-# # name : path_selector
-# # desc : the path selector algorithm to use for this mpath
-# # these algo are offered by the kernel mpath target
-# # values : "round-robin 0"
-# # default : "round-robin 0"
-# #
-# path_selector "round-robin 0"
-#
-# #
-# # name : failback
-# # scope : multipathd
-# # desc : tell the daemon to manage path group failback, or not to.
-# # 0 means immediate failback, values >0 means deffered failback
-# # expressed in seconds.
-# # values : manual|immediate|n > 0
-# # default : immediate
-# #
-# failback 30
-#
-# #
-# # name : rr_min_io
-# # scope : multipath
-# # desc : the number of IO to route to a path before switching
-# # to the next in the same path group
-# # default : 1000
-# #
-# rr_min_io 100
-#
-# #
-# # name : product_blacklist
-# # scope : multipath & multipathd
-# # desc : product strings to blacklist for this vendor
-# # default : none
-# #
-# product_blacklist LUN_Z
-# }
-# device {
-# vendor "COMPAQ "
-# product "MSA1000 "
-# path_grouping_policy multibus
-# path_checker tur
-# rr_weight priorities
-# }
-#}