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Brad Bishopd7bf8c12018-02-25 22:55:05 -05001# This is a basic configuration file with some examples, for device mapper
2# multipath.
3# For a complete list of the default configuration values, see
4# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults
5# For a list of configuration options with descriptions, see
6# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated
7
8## By default, devices with vendor = "IBM" and product = "S/390.*" are
9## blacklisted. To enable mulitpathing on these devies, uncomment the
10## following lines.
11#blacklist_exceptions {
12# device {
13# vendor "IBM"
14# product "S/390.*"
15# }
16#}
17
18## Use user friendly names, instead of using WWIDs as names.
19defaults {
20 user_friendly_names yes
21}
22##
23## Here is an example of how to configure some standard options.
24##
25#
26#defaults {
27# udev_dir /dev
28# polling_interval 10
29# selector "round-robin 0"
30# path_grouping_policy multibus
31# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
32# prio alua
33# path_checker readsector0
34# rr_min_io 100
35# max_fds 8192
36# rr_weight priorities
37# failback immediate
38# no_path_retry fail
39# user_friendly_names yes
40#}
41##
42## The wwid line in the following blacklist section is shown as an example
43## of how to blacklist devices by wwid. The 2 devnode lines are the
44## compiled in default blacklist. If you want to blacklist entire types
45## of devices, such as all scsi devices, you should use a devnode line.
46## However, if you want to blacklist specific devices, you should use
47## a wwid line. Since there is no guarantee that a specific device will
48## not change names on reboot (from /dev/sda to /dev/sdb for example)
49## devnode lines are not recommended for blacklisting specific devices.
50##
51#blacklist {
52# wwid 26353900f02796769
53# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
54# devnode "^hd[a-z]"
55#}
56#multipaths {
57# multipath {
58# wwid 3600508b4000156d700012000000b0000
59# alias yellow
60# path_grouping_policy multibus
61# path_checker readsector0
62# path_selector "round-robin 0"
63# failback manual
64# rr_weight priorities
65# no_path_retry 5
66# }
67# multipath {
68# wwid 1DEC_____321816758474
69# alias red
70# }
71#}
72#devices {
73# device {
74# vendor "COMPAQ "
75# product "HSV110 (C)COMPAQ"
76# path_grouping_policy multibus
77# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
78# path_checker readsector0
79# path_selector "round-robin 0"
80# hardware_handler "0"
81# failback 15
82# rr_weight priorities
83# no_path_retry queue
84# }
85# device {
86# vendor "COMPAQ "
87# product "MSA1000 "
88# path_grouping_policy multibus
89# }
90#}