--- multipath/multipath.conf.5 | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) Index: multipath-tools/multipath/multipath.conf.5 =================================================================== --- multipath-tools.orig/multipath/multipath.conf.5 +++ multipath-tools/multipath/multipath.conf.5 @@ -39,9 +39,8 @@ section in which they occor. The following \fIsection\fP keywords are recognized: .TP 17 .B defaults -This section defines default values for attributes which are used -whenever no specific setting is given in the appropriate device or -multipath sections. +This section defines default settings for devices-mapper-multipath. These +values can be overwritten by the devices and multipaths sections. .TP .B blacklist This section defines which devices should be excluded from the @@ -54,13 +53,26 @@ multipath topology discovery, despite be section. .TP .B multipaths -This section defines the multipath topologies. They are indexed by a -\fIWorld Wide Identifier\fR(wwid), which is the result of the -\fIgetuid_callout\fR program. +This section defines the settings for individual multipath devices. +These values overwrite what is specified in the defaults and devices +section of the configuration file. +The devices are identified by the \fIwwid\fR keyword, which is a regular +expression that must match the result of the \fIgetuid_callout\fR program. .TP .B devices -This section defines the device-specific settings. +This section defines the settings for individual storage controller types. +These value overwrite what is specified in the defaults section of the +configuration file. +These controller types are identified by the \fIvendor\fR, \fIproduct\fR, and +\fIrevision\fR keywords, which are regular expressions that must match the +sysfs information about this device. +If you are using a storage array that is not supported by default, you may need +to create a devices subsection for your array. .RE +.P +The priority of configuration in multipath.conf is: +.br +\fImultipaths\fR is greater than \fIdevices\fR is greater that \fIdefaults\fR .LP .SH "defaults section" The