NAME

       pmdadm - Device Mapper PMDA

DESCRIPTION

       pmdadm  is a Performance Metrics Domain Agent (PMDA) which exports metric values for Devic
       Mapper on the local system.

       This PMDA collects its data through the dmsetup(8) utility and requires that  the  program
       is installed in order to function.

       Further details on device mapper can be found at http://redhat.com

INSTALLATION

       Install the DM PMDA by using the Install script as root:

             # cd $PCP_PMDAS_DIR/dm
             # ./Install

       To uninstall, do the following as root:

             # cd $PCP_PMDAS_DIR/dm
             # ./Remove

       pmdadm  is  launched  by  pmcd(1)  and should never be executed directly.  The Install and
       Remove scripts notify pmcd when the agent is installed or removed.

FILES

       $PCP_PMDAS_DIR/dm/help
           default help text file for the dm metrics

       $PCP_PMDAS_DIR/dm/Install
           installation script for the pmdadm agent

       $PCP_PMDAS_DIR/dm/Remove
           undo installation script for the pmdadm agent

       $PCP_LOG_DIR/pmcd/dm.log
           default log file for error messages from pmdadm

PCP ENVIRONMENT

       Environment variables with the prefix PCP_ are used to parameterize the file and directory
       names  used by PCP. On each installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF  variable  may  be  used  to  specify  an  alternative
       configuration file, as described in pcp.conf(5).

SEE ALSO

       pmcd(1), pmstore(1), and dmsetup(8).