| # This is a basic configuration file with some examples, for device mapper |
| # multipath. |
| # For a complete list of the default configuration values, see |
| # /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults |
| # For a list of configuration options with descriptions, see |
| # /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated |
| |
| ## By default, devices with vendor = "IBM" and product = "S/390.*" are |
| ## blacklisted. To enable mulitpathing on these devies, uncomment the |
| ## following lines. |
| #blacklist_exceptions { |
| # device { |
| # vendor "IBM" |
| # product "S/390.*" |
| # } |
| #} |
| |
| ## Use user friendly names, instead of using WWIDs as names. |
| defaults { |
| user_friendly_names yes |
| } |
| ## |
| ## Here is an example of how to configure some standard options. |
| ## |
| # |
| #defaults { |
| # udev_dir /dev |
| # polling_interval 10 |
| # selector "round-robin 0" |
| # path_grouping_policy multibus |
| # getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" |
| # prio alua |
| # path_checker readsector0 |
| # rr_min_io 100 |
| # max_fds 8192 |
| # rr_weight priorities |
| # failback immediate |
| # no_path_retry fail |
| # user_friendly_names yes |
| #} |
| ## |
| ## The wwid line in the following blacklist section is shown as an example |
| ## of how to blacklist devices by wwid. The 2 devnode lines are the |
| ## compiled in default blacklist. If you want to blacklist entire types |
| ## of devices, such as all scsi devices, you should use a devnode line. |
| ## However, if you want to blacklist specific devices, you should use |
| ## a wwid line. Since there is no guarantee that a specific device will |
| ## not change names on reboot (from /dev/sda to /dev/sdb for example) |
| ## devnode lines are not recommended for blacklisting specific devices. |
| ## |
| #blacklist { |
| # wwid 26353900f02796769 |
| # devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" |
| # devnode "^hd[a-z]" |
| #} |
| #multipaths { |
| # multipath { |
| # wwid 3600508b4000156d700012000000b0000 |
| # alias yellow |
| # path_grouping_policy multibus |
| # path_checker readsector0 |
| # path_selector "round-robin 0" |
| # failback manual |
| # rr_weight priorities |
| # no_path_retry 5 |
| # } |
| # multipath { |
| # wwid 1DEC_____321816758474 |
| # alias red |
| # } |
| #} |
| #devices { |
| # device { |
| # vendor "COMPAQ " |
| # product "HSV110 (C)COMPAQ" |
| # path_grouping_policy multibus |
| # getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" |
| # path_checker readsector0 |
| # path_selector "round-robin 0" |
| # hardware_handler "0" |
| # failback 15 |
| # rr_weight priorities |
| # no_path_retry queue |
| # } |
| # device { |
| # vendor "COMPAQ " |
| # product "MSA1000 " |
| # path_grouping_policy multibus |
| # } |
| #} |