TheSaffaGeek

My ramblings about all things technical


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VCDX Spotlight – Kiran Reid

Name: Kiran Reid

Twitter Handle: Apollokre1d

Current Employer: Bank Of Tokyo Mitsubishi UFJ LTD

VCDX #: 225

How did you get into using VMware?

I started back in 2009 when my previous employer started a large datacentre consolidation project. I quickly did my VCP to ensure I was the main resource on the project.

What made you decide to do the VCDX?

I really wanted to further my knowledge after doing the VCAPs. What I liked about the VCDX program is it makes you stronger in so many different technology areas.

How long did it take you to complete the whole VCDX journey?

About 13 months once I had passed the VCAP’s.

What advice would you give to people thinking of pursuing the VCDX accreditation?

Try and enjoy the whole experience, especially the defence. When you stand in front of that panel it is an amazing feeling thinking about where you were when you started the journey and where you are now.

We always find excuses not to do things, for instance, my current employer has strict polices preventing us from emailing stuff out of the bank which meant I had to recreate all of the design documentation at home as well as fund the entire process myself, but this was important so I did not let any of that get in the way.

If your excuse is “you’re too busy” consider this… my mentor has three children all under the age of 6 but still woke up at 5am twice a week (due to the time difference) once my defence was accepted to help get me ready. He did all this while working on his own second VCDX certification and working full-time for VMware… If he found the time we all can🙂

If you could do the whole VCDX journey again what would you do differently?

For someone not from a consulting background I should’ve practiced the design scenarios a little earlier on in the process.

Life after the VCDX?  How did your company respond?  Was it worth it?

This has been one of the best experiences in my career and I am really grateful to the VCDX program and community. After a short break I am very much looking forward to completing the VCDX-NV track and helping others achieve their numbers.


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VCDX Spotlight –Ron Wedel

Name: Ron Wedel

Twitter Handle: FD_Hauza

VCDX #: 227

How did you get into using VMware?

The company I was employed with in 2007/2008 wanted to implement ESXi. We only had two four node clusters with shared storage. That company sent me to the vSphere 3.5 ICM class. My instructor in that class John Krueger was so passionate about the technology that it rubbed off on me.

What made you decide to do the VCDX?

My current director pushes his staff to stay current with advanced certificates. After I passed my DCA & DCD it seemed like a natural progression. I also enjoy the challenge of something like this.

How long did it take you to complete the whole VCDX journey?

I wrote my first outline for my design in April 2015, so about 15 months total. This includes my three defences, I failed the first two.

What advice would you give to people thinking of pursuing the VCDX accreditation?

Read the blueprint, find a mentor, find a study group and read the blueprint. This journey can be accomplished alone depending on your knowledge and job roles, but with an ever growing community why risk it? Be prepared to sacrifice a fair amount of your personal time. I wrote the bulk of my design during the summer, and was unable to attend many things. Also, make sure your family is prepared to support you. My kids didn’t really understand why I had to disappear into my office for 2 hours at random points during the day for mocks with my study group.

If you could do the whole VCDX journey again what would you do differently?

I probably wouldn’t have submitted for the October 2015 defences. I was very unprepared. Also increasing my T-Skills, I was a bit short on storage and that showed very much in my first defence.

Life after the VCDX?  How did your company respond?  Was it worth it?

It’s feels amazing to get this weight off my shoulders after 15 months. I honestly did not realize how much it stressed me out until it was over. My company was extremely supportive of the whole process and was excited for my success. I would say yes, it was worth it. I learned more about the entire infrastructure stack than I ever thought. In addition, I’ve made some good friends via study groups.


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VCDX Spotlight – Lior Kamrat

Name: Lior Kamrat

Twitter Handle: @LiorKamrat

Blog URL: http://imallvirtual.com

Current Employer: Microsoft

VCDX #: 230

How did you get into using VMware?

I’ve started from the early versions of GSX and Workstation 5.

Back then when all the virtualization stuff was new I felt that this is a game changer. At first, it was just for fun but later it helped me a lot during my career.

What made you decide to do the VCDX?

Personal achievement and career opportunities. When I started to be more active in the vCommunity and saw all the other VCDXs getting recognition and becoming “virtualization smarter”, I just knew I wanted that.

How long did it take you to complete the whole VCDX journey?

From the first VCAP cert which was DCA until now, it took 3.5 years.

The VCDX process itself took me around 2 years.

What advice would you give to people thinking of pursuing the VCDX accreditation?

I have a few advises but if I can minimize it to two it will leave your ego outside the door and the second one is you should truly be honest with yourself and don’t be afraid to learn from your peers.

If you could do the whole VCDX journey again what would you do differently?

Generally speaking, I wouldn’t change anything except of my time management in the preparation for the first defence. I wrote an entire post just on this topic alone.

Life after the VCDX?  How did your company respond?  Was it worth it?

Well, since I am working for Microsoft know when really cares about it🙂 . No one really knew what it’s like to be on your VCDX journey.

It was worth it big time. It is a great feeling to know you didn’t break under the entire thing. I am excited to see how this can be leveraged.


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Join Me At VMworld US 2016

VMworld 2016

Yet again I am honoured to have been given a bloggers pass to VMworld US due to my vExpert work but more importantly the vBrownbag TechTalks and opening acts that the vBrownbag crew will be running in the hang space.

VMworld is always an exciting conference to go to and if you haven’t yet booked your place then let me list some of the reasons I think you should attend as they are the reasons I try to attend every year.

  • On the Sunday of VMworld is Partner Exchange and TAM day where VMware partners can attend exclusive sessions talking about everything from future roadmaps for all of VMware product lines but also new solutions VMware are looking to release. The sessions are always extremely interesting and from my experience are the best chance to speak to the “rockstars” who evangelise and breath the various solutions. If you aren’t a partner or are looking for something less formal than PEX then the vBrownbag crew along with the vBrisket and VMUnderground crew are running opening acts with vBrisket for lunch and VMUnderground party at the end of the day. Opening acts has gained popularity with each year and the level of panels as well as those attending has also kept on increasing. The schedule for the day is:
    • 10:45am – The doors open
    • 11:00am – Panel Session 1
    • 12:00pm – Panel Session 2
    • 1:00pm – BBQ lunch by vBrisket
    • 2:00pm – Panel Session 3
    • 3:00pm – Panel Session 4
    • 4:00pm – Fin.
  • Also if you live in the US and want to do a road trip to VMworld then the vBrisket team are doing a road trip, you can see all the details here: http://www.vbrisket.com/vbrisket-bus-tour-to-vmworld-2016/.

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  • My second reason for attending is networking. I know it should be sessions or HOL but the ability to network with like-minded people and make relationships with people doing cutting edge work with the latest technologies has proved so beneficial to me in the past. The ability to network can be done in several places and at several parties but the best place IMO has to be the hangspace where you can sit at the bloggers table or speak to the VMware communities team as well as (and most importantly) listen and watch the vBrownbag TechTalks. If you have never heard of the TechTalks then a brief overview is below:
    • Tech Talks originated at VMworld 2012 where they provided an opportunity for community members, whose presentation submissions were not accepted into the main catalogue, to present the core of  a topic.  #TechTalks are a ten minute presentation by a community member for the benefit of the community. Since almost everyone working in technology has solved problems and learned something almost everyone could present a #TechTalk.  The format can be a slide deck or simply talking, they are usually about how to solve a problem or get the most out of a product. The TechTalk is captured on video and published on the vBrownBag YouTube channel.
    • If the conference Internet connection allows, the talk is also live streamed from the show.
    • #TechTalks are for community members to reach other community members, any topic that will help other people is good.  The one thing that TechTalks are not is an opportunity to present the corporate slide deck about a great product you would like us to buy.  #TechTalks are about up skilling and education, the only marketing should be from the TechTalk sponsors who help make the whole thing happen.
  • Anyone can watch the TechTalks and there are almost always a crowd of the biggest names in the industry,VCDX, vExperts and top 50 vBloggers either watching the TechTalks, Chatting amongst themselves nearby or writing up blogs and uploading videos to their blogs from the bloggers table. The community is very welcoming so please do come say hi and I promise if i am there I’ll try not be grumpy🙂
  • Next are the sessions. The VMworld Schedule Builder opened yesterday and within 3 hours a whole bunch were fully booked just to show the sheer interest of people to listen to some of the biggest names talking about the biggest technologies such as Duncan Epping of Yellow-Bricks.com fame talking about “A day in the life of a VSAN IO”. The sessions are always engaging and cover technical depth from beginners all the way to veterans so there is always something to learn. the sessions are also recorded so if you can’t make it to a sessions due to a conflict then by registering for VMworld you get access to all the recorded sessions after the conference for you to watch in your own time.
  • Next reason are the hands on labs. the labs cover all technologies and not just from VMware but also partners including the EMC Federation. The labs allow you a brilliant way of working your way through using the latest solutions and technologies so if your boss is wondering what NSX is and if it will fit your companies requirements you can do several labs on it and then can not only help your company understand it’s benefits having gone to sessions around NSX but also know how to do tasks inside NSX due to the labs.

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  • Next is the solutions exchange which is firstly an amazing place to talk to all the top vendors and companies working within the virtualisation arena and secondly to maybe even win yourself a few prizes from the plethora of competitions all the stands are running constantly. I personally love walking around the solutions exchange after grabbing some food so that you can listen to all the vendors explain why their solution is the best fit for you and get in some much-needed sustenance as you will be walking A LOT at the conference.
  • Lastly are the parties, these are normally amazing and seeing as the conference is in Las Vegas the locations are likely to be unbelievable. The parties vary in craziness so you can attend mellow drinks or full or parties in clubs it is entirely up to you. Apart from the VMUnderground party the Welcome Reception kicks off the conference experience with food, drinks, and networking in the Solutions Exchange. The always energetic Welcome Reception is a great way to reconnect with old friends, network, share ideas, and get to know our inviting community of VMware customers, experts, and partners. The parties have only just started getting announced but you can see which ones have been announced on Hans’ blog here. The VMworld party finishes off the conference on Wednesday night and is hosted at the legendary Las Vegas Motor Speedway and the band has been announced and despite what some old farts say about the band selected I can’t wait to listen to Fall Out Boy!!

Hopefully i will see you at the conference and as I stated do come by the hang space and say hello, I will be wearing a vBrownbag shirt with my name and twitter handle on so I should be easy to locate and identify.

 

Gregg


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I CANT BELIEVE MY VMWORLD SUBMISSION WASN’T ACCEPTED!!

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Your VMworld submission wasn’t accepted and now you are wondering how can you give back to the community or prove to the boss that your coming to VMworld is also about showing your knowledge and skills to the community. Well the vBrownbag TechTalks are the place where you can fulfill this desire (I would be remiss to not mention you should also be participating in your local VMUG) .

The vBrownbag TechTalks have been growing in popularity every year and our sessions in the hang space of VMworld US and EU are always a great way to hear ten minute sessions from some of the biggest names in the industry but even better people climbing the ranks who have great content to share. The vBrownbag crew describe the TechTalks as “presentations by community members at an industry conference. They originated with our friend’s sessions not being accepted for the main conference catalog. We know we want to learn from the community so we arranged an alternative forum. TechTalks are limited to ten minutes; they deliver the very core of an idea. Keeping presentations short also means we can do a lot of sessions in a day. Most TechTalks use a slide deck, some use a whiteboard and a few brave souls do live demonstrations. TechTalks are delivered to a small live audience at the conference and then posted to YouTube.”

If you want to see what some of the sessions were like last year then you can watch them on the vBrownbag channel here . The signup form is open and normally fills fairly quickly so why not put your name down to present, it’s a great way to practice presenting and can be used as part of your proof of why you should be selected as a vExpert in 2017.

I will be attending VMworld US to help the vBrownbag crew so come by and say hi and watch some of the sessions at least if you aren’t submitting to present.

Gregg


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Want to go to VMworld?

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Do you want to attend VMworld® 2016 US in Las Vegas this year, but your company won’t pay for the conference passes? Try your luck and win two full conference passes to VMworld® on VMTurbo®.

VMTurbo are running a competition where you can win two full conference passes to VMworld US in Las Vegas.  There will be three drawings of two tickets each on May 27th, June 17th and July 15th. The Sweepstakes starts May 4, 2016 and ends on July 15, 2016 at 11:59PM EST. Winners will be announced on the same day of each drawing and we will notify each winners by email.

Good luck!!

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VCAP6-CMA Design Objective 2.5 – Build Performance Requirements into the Logical Design

Knowledge

Evaluate logical performance considerations for a given vRealize Automation solution.

Performance considerations will be the number of virtual machines the solution has to provide sufficient resources for as well as future growth (20% growth over the next 3 years) . This is very much like vSphere sizing but now with the speed with which solutions can be created, modified and deleted especially if you are doing CDCI you need to also prepare for the number of continuous deployments and workflows at once. For example a DEM worker can only process 15 concurrent workflows at a time so if you are likely to be doing 60 workflows simultaneously due to the lifecycle of your machines then you are going to need at least four DEM workers to be deployed to handle this.

Performance also entails using mechanisms such as Storage DRS to automatically load balance provisioned workloads as they are requested, DRS to load balance the workloads across the hosts in the solution and performance of the vRA management components by isolating them in a management cluster, ensuring they are load balanced so one side isn’t always hit and the other is doing nothing. They don’t mention it in the tools but for this section and the exam as a whole I would recommend reading the latest vCAT documentation as well as the vRA 6.2 Reference Architecture document .

Differentiate infrastructure qualities related to performance.

Just like I have mentioned for the availability and management sections, the infrastructure quality for performance will need to be applied to certain requirements and designs decisions in the exam via drag and drop questions (I have done the exam so I am basing this on experience) . The performance infrastructure quality is defined as:

Indicates the effect of a design choice on the performance of the environment. This does not necessarily reflect the impact on other technologies within the infrastructure.

Key metrics:

  • Response time
  • Throughput

Analyze the current performance of an environment and address gaps when building a logical design.

So this is down to you deploying the vRA solution in an existing environment where there are workloads running and you need to analyse the performance of the environment to ascertain if the environment meets the performance requirements or if additional resources/another environment is required for the solution to work.

There are a number of methods to do this:

  • Get a VMware partner or VMware to run an analysis via VMware Capacity Planner to work out what your current environment is doing.
  • Use vRealize Operations Manager to give you a current state analysis as well as use historical data to work out trends and if there are month end increases in performance requirements or seasonal increases depending on the company’s business.
  • vSphere performance charts can also give you a not bad idea of what is happening if the above two aren’t possible as well as 3rd party tools.

Use a conceptual design to create a logical design that meets performance requirements.

In the conceptual design you will have defined and signed off the requirements. In these requirements there should be a number of them that apply to the performance infrastructure quality for example “The solution must be able to support the provisioning of 500 workloads a day” and “the solution must be able to service 5000 workloads with a 20% increase year on year for the next five years”

You will also have requirements where due to BC/DR requirements you will need spare capacity in the event of a failure so for example “The production workloads in Site A which makes up 20% of the 5000 workloads need to run on the secondary site in the event of a planned or emergency failover” .

Determine performance-related functional requirements based on given non-functional requirements and service dependencies.

Non-functional requirements are normally constraints imposed by the customer so for example the customer has defined you have to use existing networking in the datacentres and these are only 1GB switches which will severely impact what is possible from the solution. So if we keep to my example then having a service dependency that needs to talk to a physical SQL server where large amounts of data is transferred between the services to the database a single 1 GB link won’t be sufficient so either the service will have to be scaled down or the SQL database created as part of the service to allow inter virtual switch connectivity thereby allowing higher network throughputs.

Define capacity management practices and create a capacity plan.

For the exam they are looking for you to define this via the reservations on the compute resources to ensure capacity doesn’t run out. Fellow Xtravirt colleague Craig Gumbley has defined this nicely in relation to the VCP6-CMA blueprint

Incorporate scalability requirements into the logical design.

This has been covered above already but what they are looking for is for you to design for future growth of the environment as the number of workloads increases and/or the amount of workload requests increases. The vRealize Automation reference architecture document also gives great coverage of scalability

Determine a performance component for service level agreements and service level management processes.

I covered this in the availability section where you have done a business impact analysis and worked out what theirs RPO and RTO values are. Part of availability also ties into performance as if the solution is running so slowly that users can’t use it then the service is essentially down and SLA’s are possibly not being met.

Tools

 

 

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