Does any one have a SNMP disk usage script for Linux ?

[dbenders]

Does any one have a SNMP disk usage script for Linux ?

[raX]

What about the simple one that comes with cacti in 'scripts/diskfree.pl'?

The newest cacti.sql file includes the data input as well, but in case you don't have it, here are the settings.

Name:

Code: Select all

Get Free Disk Space

Input String:

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perl <path_cacti>/scripts/diskfree.pl <partition>

Output String:

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<megabytes>:<percent>

Then define the following fields:

Name: Disk Partition
Data Name: partition
Input/Output: Input
Update RRA: No

Name: Megabytes Free
Data Name: megabytes
Input/Output: Output
Update RRA: Yes

Name: Percent Free
Data Name: percent
Input/Output: Output
Update RRA: No

-Ian

[dbenders]

It looks like you are talking about a local disk usage.

If not, where you define the SNMP Community in this script?

[sayasif]

hi

you can use the snmpdf -c communitystring ip to get the disk space, real memory and swap. Now you need a script to catch the values of the output. So you gotta write one or let me know if you require the script that I have written.


ACE

[BSDeality]

I'd be interested in see the script, i'm relatively new to cacti and snmp monitoring, so i'd like to see an example of the snmp disk monitoring if possible.

[bocasman]

Hi dbenders,

I don't have an specific script for plot swap, real mem and disk space, but I have two separate ones to monitor swap and real mem.

Idea stolen from Gilson , BTW thanks again Gilson!

these are the scripts:


For RAM:

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#!/bin/sh
  memTotalReal=`$1 -Ont $2 $3 .1.3.6.1.4.1.2021.4.5.0|cut -d" " -f3`
  memAvailReal=`$1 -Ont $2 $3 .1.3.6.1.4.1.2021.4.6.0|cut -d" " -f3`
let  "memUsedReal=$memTotalReal-$memAvailReal"

echo $memTotalReal $memUsedReal $memAvailReal

For SWAP:

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#!/bin/sh
  memTotalSwap=`$1 -Ont $2 $3 .1.3.6.1.4.1.2021.4.3.0|cut -d" " -f3`
  memAvailSwap=`$1 -Ont $2 $3 .1.3.6.1.4.1.2021.4.4.0|cut -d" " -f3`
let  "memUsedSwap=$memTotalSwap-$memAvailSwap"

echo $memTotalSwap $memUsedSwap $memAvailSwap

Remember that these scripts are for linux pc's!

With this two scrits in your server all what you have to do is fallow the instrctions tha Gilson have post in http://www.raxnet.net/board/viewtopic.php?t=622

Only keep in mind that the output of these scripts gona be:

TotalMem UsedMem AvailableMem

Any way, if you need any more help, only ask for it!

[dbenders]

Hi sayasif,

Can you please post here the script you have written, that way I will save some time or learn another way to do the same, always is good to see new scripts from others.

Thanks for you TIP.

[dbenders]

Hi bocasman,

I just tried to run the command directly, but I get only a -1 value:

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shell# /usr/bin/snmpget -Ont myhost mysnmpcomunity .1.3.6.1.4.1.2021.4.5.0
shell# .1.3.6.1.4.1.2021.4.5.0 = -1

Same with the OID .1.3.6.1.4.1.2021.4.6.0

Any idea what is wrong?

Maybe the UCD-SNMP version???

mine are:

[root@host]# rpm -qa|grep snmp
ucd-snmp-4.2.5-7.73.0
ucd-snmp-utils-4.2.5-7.73.0
ucd-snmp-devel-4.2.5-7.73.0
php-snmp-4.1.2-7

[Guest]

I'm running NET-SNMP version: 5.0.6, and configured the OID's for diskspace in the snmpd:

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disk / 10000

# % snmpwalk -v 1 -c public localhost .1.3.6.1.4.1.2021.9
 enterprises.ucdavis.diskTable.dskEntry.diskIndex.1 = 0
 enterprises.ucdavis.diskTable.dskEntry.diskPath.1 = "/" Hex: 2F
 enterprises.ucdavis.diskTable.dskEntry.diskDevice.1 = "/dev/hda1"
 enterprises.ucdavis.diskTable.dskEntry.diskMinimum.1 = 10000
 enterprises.ucdavis.diskTable.dskEntry.diskTotal.1 = 837130
 enterprises.ucdavis.diskTable.dskEntry.diskAvail.1 = 316325
 enterprises.ucdavis.diskTable.dskEntry.diskUsed.1 = 437092
 enterprises.ucdavis.diskTable.dskEntry.diskPercent.1 = 58
 enterprises.ucdavis.diskTable.dskEntry.diskErrorFlag.1 = 0
 enterprises.ucdavis.diskTable.dskEntry.diskErrorMsg.1 = ""

http://hobbes.sa-char.net/cacti/graph.p ... &rraid=all


although it returns a NAN value for used diskspace, don't know why that is.

[agismaniax]

Try this:

1. Choose your device
2. Associated Data Queries -> SNMP - Get Mounted Partitions
3. Associated Graph Templates -> Host MIB - Available Disk Space
4. Create Graphs for this Host
5. Choose your disk partition

This is work for Windows and Linux.

Hope this help...

[melchandra]

It was VERY easy for me. Use "snmpconf -g basic_setup". This will create a snmpd.conf file for you. You can specify partitions you want to monitor, usernames, passwords... it's very easy to use (i.e. I got through it without reading any documentation, first time through) The net-snmp daemon will use the host MIB which gives all sorts of information about disk partitions among other things.

[Wunk]

Generic setup for an snmpd.conf is to start with a blank.., and put in the following:

rocommunity putapasswordhere
disk / 10000
disk /tmp 10000


That's it.., it'll let you monitor Processor, memory, interfaces, the above mentioned disk partitions (add the ones you need) and load..