memory check plugin for SNMP

[dinush]

is there a memory check plugin through SNMP ,which excludes cache memory which also having performance graphs?

[rkennedy]

What OS are you using?

[dinush]

centos 6.6 64 bit . installed thorugh OVA image file given by Nagios

[rkennedy]

Ack - my bad, I meant what OS are you looking to monitor through SNMP? Guessing either *nix or Windows.

[dinush]

it's Suse Linux ..

And I need below plugins with performance data for graphing/reporting. (I’m using agentless SNMP monitoring)

- Memory check – used memory% excluding cache (graph should contain all values- total/used/free/cache/swap memory.. etc)
- IO check -
- Network bandwidth check –

[rkennedy]

The 'Linux SNMP' wizard should cover the memory / swap usage.

As for the IO check, and network bandwidth check, you'll want to use the 'SNMP walk wizard' to monitor these metrics, as long as they're available via SNMPD. I would run a snmpwalk - snmpwalk -v 2c -c public ip.of.suse.machine (replace community / version as needed) - to see everything that's available. Once you find the MIB/OID you want to monitor the metrics for, then plug that OID / MIB into the 'OID' variable in the SNMP walk wizard which will allow you to setup a check.

[dinush]

i've added the plugin through wizard and below command gives only physical memory. As my systems always use more cache memory (most of the time more than half) , eveytime my physical memory shows as 99% and getting lots of alert mails. So need to get alerts excluding cache memory.(and the graphs too)

check_snmp_storage_wizard.pl -H <IP> -C public --v2c -w 80 -c 90 -f -m Physical

[rkennedy]

Can you show us the full output of the snmpwalk against the machine? We'll need to see if that variable is available for the cached memory.

[dinush]

below is the command

# /usr/local/nagios/libexec/check_snmp_storage_wizard.pl -H <IP>
Put snmp login info!
Usage: check_snmp_storage [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>]) [-p <port>] -m <name in desc_oid> [-q storagetype] -w <warn_level> -c <crit_level> [-t <timeout>] [-T pl|pu|bl|bu ] [-r -s -i -G] [-e] [-S 0|1[,1,<car>]] [-o <octet_length>] [-R <% reserved>]

[rkennedy]

I actually need you to run snmpwalk -v 2c -c <communitystring> <ip.of.suse.machine> - it'll produce quite a bit of output, but post it here for us to review so we can see if there is an OID/MIB with the applicable data.