Monthly Archives: February 2011

Using a Network Packet Analyzer on a VMware vSphere Virtual Network

David Davis from Train Signal has posted a paper on this subject which you can read here. You can also download the free Xangati ESX Network Monitor from their website, click here. You can read some information PVLANs here.

Posted in Freeware Utils, VMware | Leave a comment

vSphere vSphere 4.1 Performance Troubleshooting Guide

You can download the guide from here. Notice of this release was taken from a Yellow Bricks blog post here.

Posted in VMware | Leave a comment

vSphere and iSCSI

Virtual Geek, raises a very interesting point regarding the configuration of multipathing for iSCSI links in vSphere: “Let’s be REALLY clear about this – you shouldn’t use link aggregation techniques with iSCSI – you should/will use MPIO (which defines end-to-end … Continue reading

Posted in VMware | Leave a comment

vSphere 4.1 and HP ProLiant BL460g7 NICs

If you haven’t come across it yet, the onboard 10Gb NICs on the BL460g7 will not operate with the standard vSphere 4.1 installation CDs. You will need to install the drivers from here. You can read more information on the … Continue reading

Posted in VMware | Leave a comment

Putting an ESX Host in Maintence Mode via Command Line.

Good guide here. The actual commands are listed here… To enter maintenance mode run the following command vimsh -n -e /hostsvc/maintenance_mode_enter To exit maintenance mode run the following command vimsh -n -e /hostsvc/maintenance_mode_exit So your probably wondering how do I … Continue reading

Posted in VMware | Leave a comment

Various useful ESX commands

I use some of these commands when asked to audit an existing ESX Server installation. fdisk -l (lists out partitioning information) esxcfg-info (load of vmware information). vmware -v (vmware version) ll -h /usr/sbin | grep esxcfg-* (Lists out the esxcfg … Continue reading

Posted in VMware | Leave a comment

Access a CD/DVD from the ESX console

Pretty straight forward, but it’s something that can easily forgotten…. click here. Here are the gist of the instructions: ll /dev |grep cdrom mount /dev/scd0 /mnt/cdrom umount /mnt/cdrom

Posted in VMware | Leave a comment