mainesysadmin.com

I was reading the old vmblog.com today and ran across a new tool that appears useful. I’m going to be upgrading from 3.0.2 -> 3.5 soon and I can see an immediate use for this tool. RVTools can be used to read the vmware tools version installed on all your Vmware guest servers if you point the tool at your Virtual Center server. There are a few other fields that are brought down as well. I use the notes field to populate backup information for the guest and that came down nicely with the tool.

After you read the version installed you can even select which VM’s if any you would like to upgrade which looks very convenient. Here’s the post I read…

http://vmblog.com/archive/2008/05/12/3rd-party-rvtools-for-vmware-updated-to-version-1-1.aspx

or go to the horse’s mouth right here:

http://rvtools.deveij.com/

While working with vmware support on the phone they required me to run a job from Virtual center to gather diagnostic log data from our VI3 cluster.  You can try this by opening your, “Virtual Infrastructure Client” and selecting the “Administration” menu and then “Export Diagnostic Data”.  When I run this command for as little or much information required I ALWAYS get the following error, “Failed to create diagnostic bundle.”

If you ssh to your host directly you can run the following command from each host and sftp the logs from the host afterwards.

vm-support

This information was stolen from vmtn.net
http://www.vmware.com/community/message.jspa?messageID=423354

Re: SNMP Information from ESX3
Posted: Sep 29, 2006 8:48 AM in response to: cklemmer
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first edit snmpd.conf

1. vi /etc/snmp/snmpd.conf

configure it to point to the management server IP address
use a community name (here it’s public)

trapsink *.*.*.*
trapcommunity public

then start snmpd service

1. service snmpd start

configure it to autostart

1. chkconfig snmpd on

test it on local machine

1. snmpwalk -v 1 -c public localhost system

test it on another system (x.x.x.x is the esx server’s IP)

1. snmpwalk -v 1 -c public x.x.x.x system

configure your management server to receive SNMP and act upon.

This article applies to VMware ESX 3.0.1 in addition to older versions 2.5.3 - 3.0

VMware ESX server has snmpd daemon that can be used to monitor performance and send snmp traps
Virtual Center monitor many performance metrics, like CPU, Memory, network and disk I/O, but it is expensive and it is limited to those metrics.
What if you need to monitor disk space on /var/log partition? and want to receive an alert when it reaches 90%; What if you want to monitor httpd on ESX and receive a message when it fails.
If you are working in an environment with many servers and a team of systems administrators, you are most likely using a system monitoring tool or at least evaluating one.

* Edit snmpd.confWhatsup pro
# vi /etc/snmp/snmpd.conf
* Configure it to point to the management server IP address and use a community name (here it’s public)
trapsink *.*.*.* trapcommunity public
* Then start snmpd service
# service snmpd start
* Configure it to autostart
# chkconfig snmpd on
* Test it on local machine
#snmpwalk -v 1 -c public localhost system
* Test it on another system (x.x.x.x is the esx server’s IP)
#snmpwalk -v 1 -c public x.x.x.x system
* Open the firewall esxcfg-firewall -o 162,tcp,in,snmp
* Go to Whatsup machine (or any management station your have like Dell Open Manage IT Assistant or Nagios)
* Compile ESX MIBs from ESX server
/usr/lib/vmware/snmp/mibs/
VMWARE-ESX-MIB.mib
VMWARE-RESOURCES-MIB.mib
VMWARE-ROOT-MIB.mib
VMWARE-SYSTEM-MIB.mib
VMWARE-TRAPS-MIB.mib
VMWARE-VMINFO-MIB.mib
* If you haven’t added the server to be monitored yet, run discovery or add device to add the server to the database
* Create monitors for SNMP and configure credentials and communities (public, private etc…)
* Open the firewall on the management station ( here it is Whatsup pro)
* Write click the machine you want to monitor and select the monitored items (ping, http, cpu, disk space… etc.)
* Configure the actions to be triggered (email, page, event log…)