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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
# }
#}
|
