My VCDX study notes

Now that the VCDX certification is widely available i have decided that i need to start improve my knowledge of Virtualisation systems and how they work for when i decide to take the plunge and attempt the exams.

This area is my blog is primarily going to be used to write up my revision notes, a bit like what Jon has done on his 2VCP’s Blog

Duncan over at Yellow-Bricks has a great post which has a long list of Articles and Guides that he studied before taking his VCDX Design exam, so I’m going to follow his advice and start reading.

Here is his current list taken from his post – “VCDX Design Exam, how to prepare?

Well there is plenty there for me to get stuck into.. so lets get to it!

Update: Here is a couple of Online VCP Exams you can use to make sure your knowledge is still at a good level. If you can’t pass these exams then maybe you shouldn’t be aiming this high!

Deploying ESX3.5 using EDA v0.85 inside VMware Workstation 6.5

VMware Workstation is becoming a very good friend of mine since I installed it a few months ago, it makes testing soo much easier and quicker which pleases my boss as I’m not installing and uninstalling software on Production VM’s.

My interest in deploying ESX using EDA (ESX Deployment Application) came about when I received a new project which was to create a new ESX cluster with 6 hosts. I know 6 hosts isn’t a lot but I wasn’t sure whether it would have been quicker for me to manually install the ESX hosts one by one or to setup a scripted install which would install them all automatically for me.

If any of you listen to the VMware Communities Roundtable Podcasts you may remember a discussion that was had in Episode #32 about “How many ESX Servers do you have to install before automation is really worth it?” The discussion was inconclusive so I decided that I was going to install my new host manually, but as part of my own development I download EDA to see what functionality was on offer.

This is not a step-by-step guide; it just provides you with the settings I used and the solutions to problems i found when setting up my Test deployment environment.

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An error occurred during configuration of the HA Agent on the host

A funny thing happened whilst configuring a new ESX3.5 cluster, part of my process was to enable HA on my hosts.

After checking the “Enable VMware HA” box and making a few changes to the default settings my Hosts begin to Configure HA.

All seemed to be going well until I was presented with this;

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VMotion Performance

I’ll set the scene a little….

I’m working late, I’ve just installed Update Manager and I‘m going to run my first updates. Like all new systems, I’m not always confident so I decided “Out of hours” would be the best time to try.

I hit “Remediate” on my first Host then sat back, cup of tea in hand and watch to see what happens….The Host’s VM’s were slowly migrated off 2 at a time onto other Hosts.

“It’s gonna be a long night” I thought to myself. So whilst I was going through my Hosts one at time, I also fired up Google and tried to find out if there was anyway I could speed up the VMotion process. There didn’t seem to be any article or blog posts (that I could find) about improving VMotion Performance so I created a new Servicedesk Job for myself to investigate this further.

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Microsoft NLB Error when trying to Cluster Cloned VM’s

My Job; Cluster 2 VM’s using Microsoft NLB, a simple 2 minute job right? Wrong!

Why? Because my 2nd VM was a clone of the 1st.

Once I had my newly created VM’s configured I proceeded to fire up the NLB Manager tool and began to create my new cluster. Cluster configured…first VM added to the cluster, no problems.

Then I tried to add the 2nd VM… I was confronted with this Error:

“No interfaces are available for installing a new cluster”


Great there goes my lunch break!

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