4.2. Configuration File Blacklist

The devnode_blacklist section of the multipath configuration file specifies the devices that will not be used when the system configures multipath devices. Devices that are blacklisted will not be grouped into a multipath device.

By default, all devices are blacklisted, since the following lines appear in the initial configuration file.

devnode_blacklist {
        devnode "*"
}

devnode_blacklist {
        devnode "*"
}

To enable multipathing on all of the devices that are supported by default, comment out those lines, as described in Section 3.1, “Setting Up DM-Multipath”.

After commenting out the universal blacklist, you can specify general device types and individual devices to blacklist. You can blacklist devices according to the following criteria:

By default, a variety of device types are blacklisted, even after you comment out the initial devnode_blacklist section of the configuration file. For information, see Section 4.2.2, “Blacklisting By Device Name”.

blacklist {
       wwid 26353900f02796769
}

blacklist {
       wwid 26353900f02796769
}