pmdamounts(1) — Linux manual page


PMDAMOUNTS(1)              General Commands Manual             PMDAMOUNTS(1)

NAME         top

       pmdamounts  -  filesystem  mounts  performance  metrics  domain agent

SYNOPSIS         top

       $PCP_PMDAS_DIR/mounts/pmdamounts [-d domain] [-l logfile] [-U

DESCRIPTION         top

       pmdamounts is a simple Performance Metrics Domain Agent (PMDA) which
       monitors availability of a given set of filesystem mounts.

       The mounts PMDA exports metrics that reflect whether the configured
       filesystems are mounted ("up") or not.  The list of mount points to
       monitor is specified via the $PCP_PMDAS_DIR/mounts/mounts.conf file
       which simply contains one line for each mount point.

       A brief description of the pmdamounts command line options follows:

       -d   It is absolutely crucial that the performance metrics domain
            number specified here is unique and consistent.  That is, domain
            should be different for every PMDA on the one host, and the same
            domain number should be used for the same PMDA on all hosts.

       -l   Location of the log file.  By default, a log file named
            mounts.log is written in the current directory of pmcd(1) when
            pmdamounts is started, i.e.  $PCP_LOG_DIR/pmcd.  If the log file
            cannot be created or is not writable, output is written to the
            standard error instead.

       -U   User account under which to run the agent.  The default is the
            unprivileged "pcp" account in current versions of PCP, but in
            older versions the superuser account ("root") was used by

INSTALLATION         top

       If you want access to the names, help text and values for the mounts
       performance metrics, do the following as root:

            # cd $PCP_PMDAS_DIR/mounts
            # ./Install

       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/mounts
            # ./Remove

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

FILES         top

                 command line options used to launch pmdamounts
                 default help text file for the mounts metrics
                 installation script for the pmdamounts agent
                 undo installation script for the pmdamounts agent
                 default log file for error messages and other information
                 from pmdamounts


       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         top

       PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at ⟨⟩.
       If you have a bug report for this manual page, send it to  This page was obtained from the project's upstream
       Git repository ⟨⟩ on
       2020-08-13.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-08-11.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot                 PCP                       PMDAMOUNTS(1)