
DotHill – Linux Device Mapper Multipath “How To” for Storage Revision 4
DotHill – Copyright 2009 24
# # 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>.
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