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Full Discussion: Performance Monitoring of FileSystem
Operating Systems AIX Performance Monitoring of FileSystem Post 302463378 by shockneck on Sunday 17th of October 2010 07:12:20 AM
Old 10-17-2010
Quote:
Originally Posted by A.Srenivasan
[...]The scenario is.. The filesystem (/drbackup) is getting monitored and if it exceeds the threshold, we will receive an alert from it. The issue is that we receive an alert with the description of "Current Utilization exceeds 90%". But whenever I check in the server, it shows the value of only 10% (Current Utilization). So do we have any performance monitoring tool to find when it goes high and get reduced to low ?
From what you describe I would presume that the /drbackup FS is used for a backup which is copied after completion to another storage system (such as TSM) and then deletet from the /drbackup FS.

So you want to know what is going on in the FS when it gets full and at what time this happens.
You might start by configuring NMON to monitor the Filesystems, write the data into a file and use the NMON-Analyser to convert the data into an Excel sheet. Choose the monitoring intervall according to the time needed to register the backup process. For details about NMON read the man page and look into the information in the NMON wiki. The NMON output should give you a good picture of when this process takes place and to what extent the FS gets filled.
 

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LEARN ABOUT CENTOS

pmdagluster

PMDAGLUSTER(1)						      General Commands Manual						    PMDAGLUSTER(1)

NAME

       pmdagluster - Gluster Filesystem PMDA

DESCRIPTION

       pmdagluster is a Performance Metrics Domain Agent (PMDA) which exports metric values about mounted gluster filesystems using the gluster(8)
       command.  This PMDA exports metrics about volumes and bricks both local and remote to the node where pmdagluster is running.

       The gluster filesystem supports fine-grained control over enabling statistics on individual volumes, so	that  the  values  are	optionally
       enabled or disabled on systems where they are not desired to be monitored.

       The  pmstore(1)	command can be used to enable and disable profiling of volumes.  Using the individual instances of the gluster.volume.pro-
       file metric, one can set their values (and associated profiling) either on (1) or off (0).  Additionally, pminfo(1) can report on the  cur-
       rent status of profiling of each volume.

	    # pminfo -f gluster.volume.profile

	    gluster.volume.profile
		inst [0 or "gv0"] value 0
		inst [1 or "gv1"] value 1

	    # pmstore -i "gv0" gluster.volume.profile 1
	    gluster.volume.profile inst [0 or "gv0"] old value=0 new value=1

       Further details on the gluster filesystem can be found at http://www.gluster.org

INSTALLATION

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

	     # cd $PCP_PMDAS_DIR/gluster
	     # ./Install

       To uninstall, do the following as root:

	     # cd $PCP_PMDAS_DIR/gluster
	     # ./Remove

       pmdagluster  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_PMDAS_DIR/gluster/Install
	   installation script for the pmdagluster agent

       $PCP_PMDAS_DIR/gluster/Remove
	   undo installation script for the pmdagluster agent

       $PCP_LOG_DIR/pmcd/gluster.log
	   default log file for error messages from pmdagluster

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 configura-
       tion file, as described in pcp.conf(5).

SEE ALSO

       pmcd(1), pminfo(1), pmstore(1), and gluster(8)

Performance Co-Pilot							PCP							    PMDAGLUSTER(1)
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