MRTG : Get Disk Usage

MRTG : Get Disk Usage 2015/06/16

	Configure MRTG to display Disk Usage rate (mainly display free disk area).
[1]	Configure MRTG.

[root@dlp ~]#  vi /etc/snmp/snmpd.conf # line 323: uncomment disk / 10000 [root@dlp ~]#  systemctl restart snmpd  # make sure total disk amount (replace the "Serverworld" to your comunity name) [root@dlp ~]#  snmpwalk -v2c -c Serverworld localhost .1.3.6.1.4.1.2021.9.1.6  UCD-SNMP-MIB::dskTotal.1 = INTEGER: 27740944 [root@dlp ~]#  vi /etc/mrtg/mrtg.cfg # add follows to the end (replace the "Serverworld" to your comunity name) # specify the result of above for "MaxBytes" section Target[Disk]: .1.3.6.1.4.1.2021.9.1.7.1&.1.3.6.1.4.1.2021.9.1.7.1:Serverworld@127.0.0.1:::::2 MaxBytes[Disk]: 27740944 kMG[Disk]: k,M,G,T,P Unscaled[Disk]: dwmy Options[Disk]: gauge, absolute, growright, nopercent YLegend[Disk]: Disk Free(Bytes) ShortLegend[Disk]: Bytes LegendI[Disk]: / Disk Free [Bytes] LegendO[Disk]: Legend1[Disk]: / Disk Free [Bytes] Legend2[Disk]: Title[Disk]: Disk Free PageTop[Disk]: <H1>Disk Free</H1> # execute mrtg 3 times (display warnings until 3 times) [root@dlp ~]#  for (( i=1 ; i <= 3 ; i++ )); do env LANG=C mrtg /etc/mrtg/mrtg.cfg; done  2015-06-16 19:30:23, Rateup WARNING: /usr/bin/rateup could not read the primary log file for disk 2015-06-16 19:30:23, Rateup WARNING: /usr/bin/rateup The backup log file for disk was invalid as well 2015-06-16 19:30:23, Rateup WARNING: /usr/bin/rateup Can't rename disk.log to disk.old updating log file # generate index file [root@dlp ~]#  indexmaker --columns=1 /etc/mrtg/mrtg.cfg > /var/www/mrtg/index.html

[2]	Access to the "http://(MRTG hostname or IP address)/mrtg/" from a client with HTTP, then it's possible to see Free Disk amount.