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1 | # 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. | |
19 | defaults { | |
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 | #} |