Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   29550 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

PMDAGFS2(1)							   PMDAGFS2(1)

NAME
       pmdagfs2 - Global Filesystem v2 (GFS2) PMDA

DESCRIPTION
       pmdagfs2	 is  a	Performance  Metrics Domain Agent (PMDA) which exports
       metric values about mounted GFS2 filesystems from the debugfs  filesys‐
       tem.   This  PMDA requires debugfs along with at least one mounted GFS2
       filesystem to be mounted in order to be able to provide metric data.

       This PMDA can be used with GFS2 filesystems which are both  mounted  as
       local  filesystems and filesystems which are  mounted as shared storage
       within a clustered environment. However there are  some	metrics	 which
       specifically  require GFS2 to be setup in a clustered environment to be
       able to provide metric data. This is due to them expecting locking mes‐
       sages to be passed via the distributed lock manager (DLM) between nodes
       of a cluster in order to generate their output.

       These cluster-environment-only metrics  can  be	distinguished  by  the
       inclusion  of  their  corresponding control metrics so that they can be
       optionally enabled or disabled on systems where they are not desired to
       be monitored or not supported.

       pmstore(3)  can	be  used  to assign values to these control metrics in
       order to enable (1) or disable (0) them.	 This mechanism is also useful
       on  distributions  that do not currently have full support for the GFS2
       trace-points or provide older versions of the GFS2 driver.

       Further details on clustering and GFS2  can  be	found  at  http://red‐
       hat.com

INSTALLATION
       Install the GFS2 PMDA by using the Install script as root:

	     # cd $PCP_PMDAS_DIR/gfs2
	     # ./Install

       To uninstall, do the following as root:

	     # cd $PCP_PMDAS_DIR/gfs2
	     # ./Remove

       pmdagfs2	 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/gfs2/help
	   default help text file for the GFS2 metrics

       $PCP_PMDAS_DIR/gfs2/Install
	   installation script for the pmdagfs2 agent

       $PCP_PMDAS_DIR/gfs2/Remove
	   undo installation script for the pmdagfs2 agent

       $PCP_LOG_DIR/pmcd/gfs2.log
	   default log file for error messages from pmdagfs2

PCP ENVIRONMENT
       Environment variables with the prefix PCP_ are used to parameterise 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 gfs2(5).

Performance Co-Pilot		      PCP			   PMDAGFS2(1)

Vote for polarhome