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

       -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 default.

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

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 2024-06-14.
       (At that time, the date of the most recent commit that was found
       in the repository was 2024-06-14.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
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       (which is not part of the original manual page), send a mail to

Performance Co-Pilot               PCP                     PMDAMOUNTS(1)