An array policy module (APM) is a dynamically loadable kernel module (plug-in for DMP) for use in conjunction with an array. An APM defines array-specific procedures and commands to:
DMP supplies default procedures for these functions when an array is registered. An APM may modify some or all of the existing procedures that are provided by DMP or by another version of the APM.
You can use the following command to display all the APMs that are configured for a system:
# vxdmpadm listapm all
The output from this command includes the file name of each module, the supported array type, the APM name, the APM version, and whether the module is currently loaded and in use. To see detailed information for an individual module, specify the module name as the argument to the command:
# vxdmpadm listapm module_name
To add and configure an APM, use the following command:
# vxdmpadm -a cfgapm module_name [attr1=value1 \ [attr2=value2 ...]]
The optional configuration attributes and their values are specific to the APM for an array. Consult the documentation that is provided by the array vendor for details.
Specifying the -r option allows you to remove an APM that is not currently loaded:
# vxdmpadm -r cfgapm module_name