Tag Archives: SNMP

How to backup an off-line installation of Cisco WCS 6.0.196.0

Well let’s say you have an error that brings down all your WCS installation and you do not have a recent backup. What can you do? How can you recover the DB?

For this there is a simple answer but first let’s take a minute to analyze the WCS structure. It’s made from three primary components:

  1. the Solid database engine;
  2. the Apache web server engine;
  3. and the Java virtual machine that contains a Java-based SNMP engine. Continue reading

A new monitoring tool is in town…

Watching the “Network Monitoring Application of the Year” vote on http://www.linuxquestions.org I have noticed a new Nagios / competitor: Shinken. The name describes a very sharp Japanese sword – associating the program with its large scale monitoring capabilities.

The software it’s written in Python and it’s compatible with the Nagios configuration. Also they say that they use fewer resources than the Nagios counterpart. The developer has put an accent on the Business rules, Cloud computing and “Very large monitoring capabilities”. Take a look at their features: http://www.shinken-monitoring.org/features/ Continue reading

Nagios check_snmp INVERTER

This is my first plug-in made for Nagios. It was made in order to help the administrator to check via SNMP the inverse scale variables such as UPS line in voltage.

For example, one needs to know when the input voltage of an UPS drops to zero => an error, as the power line is in fault, but not having problems when the same check is 220V in normal conditions.

With the normal “check_snmp” you can’t check those limits, as the check will always be in error.

Usage:  ./check_snmp_inverter.sh -H <remote_host_IP> -C <comunity_string> -o <OID> -w <warning value> -c <critical value> -u <measure block> -l <label>

The critical value is the real value that one needs to set, for example: 0, and the warning value greater than the critical – ex: 240.

You can download it from here.

Check the Cisco CallManager and CallManager Express (=> 6):

You will need first to check the SNMP OID’s with your systems (see the UPS tutorial ) and enable on CCM hosts the SNMP string and checks. All the checks that I have done for this tutorial are from the file CISCO-CCM-MIB.my

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Tutorial to monitor AROS & APC UPS-s via SNMP with NAGIOS

– UPDATED – 27.08.2010

I have inserted my first plug-in (you can get it from here) in this tutorial with the help of which we will check things like voltage in or the time that remains until the battery is finished.

Before you start this tutorial please make sure that your network responds to the same OID as here and that you have configured all the UPS-s to work with the snmp (note down your snmp community string). In my tests I used the standard powernet395.mib from APC and the rfc1628.mib for AROS.

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