Tuesday 9 February 2010

PFN_LIST_CORRUPT - International Update your VMwareTemplates Day!

Ok perhaps it isnt "International Update your VMware Templates Day"
However as VMware admin it is too easily left of the upgrade list.

Normally when moving from, for example ESX 4 to ESX 4U1, the procedure is this:

1) Update VCenter
2) Update ESX hosts
3) Update VMs (vmware-tools)..then VM/HW version

But do not for get templates!


I recently bumped into a case where an old version of vmware tools (from ESX 3U3) was causing issues being deployed. It started with a Blue screen of death "PFN_LIST_CORRUPT" then programs crashing/not responding.

It was tracked back to an old VDI Windows XP 32bit image using a very old version of vmware tools.

Once the Template was upgraded the issue was fixed!

p.s. if you want to upgrade vmware tools on multiple hosts without rebooting your production boxes..look here

3 Way Load Balancing With DMZ Exceptions

Here is the lab:



Here is the how to:
3 Way Load Balancing With DMZ Exception -Part1
Setup of the Lab in VMware
Setup of Basic BGP


3 Way Load Balancing With DMZ Exception -Part1 from Richard Vimeo on Vimeo.






3 Way Load Balancing With DMZ Exception -Part2

Set up of R1
NAT setup
Setup of Load Balancing
Installing IPtraf


3 Way Load Balancing With DMZ Exception -Part2 from Richard Vimeo on Vimeo.





3 Way Load Balancing With DMZ Exception -Part3

Correcting Some errors
Destination Nat for DMZ
Firewall Setup

3 Way Load Balancing With DMZ Exception -Part3 from Richard Vimeo on Vimeo.





3 Way Load Balancing With DMZ Exception -Part4
Testing Loadbalancing with speedtest.net
Round up


3 Way Load Balancing With DMZ Exception -Part4 from Richard Vimeo on Vimeo.