PMDAMOUNTS(1)PMDAMOUNTS(1)NAMEpmdamounts - filesystem mounts performance metrics domain agent (PMDA)
SYNOPSIS
$PCP_PMDAS_DIR/mounts/pmdamounts [-d domain] [-l logfile] [-U username]
DESCRIPTIONpmdamounts 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.
Note that the platform kernel PMDA exports a more extensive set of
filesystem metrics for every mounted filesystem - this PMDA is primar‐
ily intended for availability monitoring using the mounts.up metric.
A brief description of the pmdamounts command line options follows:
-d It is absolutely crucial that the performance metrics domain num‐
ber 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 cre‐
ated 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
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
$PCP_PMCDCONF_PATH
command line options used to launch pmdamounts
$PCP_PMDAS_DIR/mounts/help
default help text file for the mounts metrics
$PCP_PMDAS_DIR/mounts/Install
installation script for the pmdamounts agent
$PCP_PMDAS_DIR/mounts/Remove
undo installation script for the pmdamounts agent
$PCP_LOG_DIR/pmcd/mounts.log
default log file for error messages and other information
from pmdamountsPCP 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 ALSOPCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).
Performance Co-Pilot PCP PMDAMOUNTS(1)
