Top 10 Tekhead Posts of 2016

I’m pleased to say that I upped my game somewhat over the past year, managing to churn out 62 posts in 2016, more than double the 28 posts I produced in 2015!

There were a few other interesting trends over the previous year. The balance between VMware and other subjects has definitely shifted for me, where for example, I wrote well over a dozen posts on AWS.

I guess this is probably representative of both my recent role change, as well as the shift in my customers from being 90%+ VMware houses, to a broad mix of different cloud platforms, both public (AWS / Azure) and private (VMware / OpenStack).

This trend is only going to accelerate in the future, and I suggest Scott Lowe’s Full Stack Journey podcast would be well worth your time subscribing to for great information on how to avoid being left behind as our industry morphs over the coming years!

thecloud

It’s worth noting that this trend is also mirrored in the top 5 articles alone, which include popular newer technologies such as Docker and AWS. That said, it’s great to see the Intel NUC Nanolab series is still as popular as ever, and people are obviously still keeping their vSphere skills and certs up to date, based on the VCP delta study guide popularity.

You may also have noticed that I have been a little quieter of late. The main reasons for this have been down to starting my new role earlier this year, studying for exams, plus a number of other projects I’ve been involved in (such as the Open TechCast podcast). Hopefully I can find a little more balance between them all in 2017, though I already have a couple of podcasts, a VMUG presentation, and a possible exam lined up for January so I’m not really helping myself on that front!

Tekhead Post Stats 2016

So, enough jibber jabbing! Here follows the top 10 most popular posts of the past 12 months.

Tekhead Top 10 Posts of 2016
  1. My Synology DSM Blue LED issue was actually just a failed drive!
  2. Installing Docker on Ubuntu Quick Fix
  3. NanoLab – Running VMware vSphere on Intel NUC – Part 1
  4. Fix for VMware Remote Console unrecoverable error: (vmrc)
  5. AWS Certified Solutions Architect Associate Exam Study Guide & Resources
  6. VCP6-DCV Delta Exam (2V0-621D) Study Guide and Exam Experience
  7. NetApp – Is this the dawn of a new day?
  8. NanoLab – Part 10 – Your NUCs are nice and cool, but what about your stick?
  9. Index of Tekhead.it Blog Posts on Amazon AWS
  10. Quick Fix for “The task was canceled by a user” when deploying OVA in vCenter 6

Something Mike Preston and I discussed on our recent Open TechCast podcast episode, was how it can be a little frustrating as a blogger that often an opinion piece which took ages to write and edit will get a small number of views, whilst a quick tip which took a couple of minutes to jot down, might get thousands or even tens of thousands over time!

Gladly, my top 10 this year includes both types, so my time wasnt completely wasted! 🙂

Anyway thats enough from me for now; all the best for 2017 folks!

Now that’s what I call… Tech Predictions 2017

predictions

At this time of year, it is customary to look back at the past 12 months and make some random or not-so-random guesses as to what will happen over the coming 12. As such, what could be more fitting for my final post of 2016?!

Here’s a few of my personal best, worst, and easy guess candidates for 2017…

Tekhead Predictable Tech Predictions 2017

Easy Guesses

Come on Alex, even Penfold could have predicted these!

  • AWS will continue to dominate the cloud market, though the rate at which they deploy new features will start to slow (over 1000 a year is pretty unsustainable!). Their revenues will continue to grow at gangbuster rates, however their market share will be slightly eroded as people experiment more with their competitors too.
  • Microsoft Azure will grow massively (not quite 100% but not far off it). Their main growth will probably be in hosting enterprises and typical line of business applications as people move their legacy junk into the cloud. The recent announcements of the Single Instance VM SLA of 99.9% will definitely accelerate this as customers will feel less include to refactor their applications for cloud.
  • Distributed everything!
  • Docker will start to become more mainstream production and less Dev/Test.
  • Google will kill off at least one popular service with multiple millions of users.
  • The homelab market will reduce as people do more and more of their studying in the cloud.
  • Podcasting will become the new blogging (if it hasn’t already!)
  • DellEMC will continue to hack off bits of its anatomy to pay back that cheeky little $67Bn debt.
  • I continue to use memes as a crutch to make my otherwise lifeless articles marginally more interesting!obvious
Best Guesses

Its on the cards… maybe?

  • Google will continue to be ignored by most enterprises for Cloud IaaS. They will gain some reasonable growth in the web application space after another mass marketing activity to developers, ISVs and hosters.
  • Oracle grows Cloud revenues 50% or more but market share remains small. Their growth is mainly driven by IaaS revenue as customers begin to move their workloads to be closer to their data in the Oracle PaaS and SaaS services.
  • There will be no major storage company IPO in 2017, i.e. over $200m.
  • Many storage startups will run out of funding and die on the vine (depressing I know!). Their IP will be snapped up by the old guard storage companies in the proceeding fire sales…
    fire-sale
  • 3D XPoint will begin to creep into storage arrays by the end of the year, fuelling another storage VC funding bubble for at least another 12 months for any company who claims to have an innovative way to use it.
  • A major cloud provider suffers a global outage.
Worst Guesses

These probably won’t happen, but if any of them do, I’ll claim smugly that I knew they were always going to!

  • Pure Storage will make an acquisition of a storage startup to create their third product line, perhaps a secondary storage company (i.e. not just all flash) along the lines of Cohesity.
  • Cisco will buy a storage company. They will be more successful at integrating it than they were with Whiptail! (Which wouldn’t be difficult… 😮 )
  • Spanning a single application over multiple clouds becomes a real possibility, as one or more startups come out of stealth to provide innovative ways to span clouds. Nobody buys into it, except maybe for DR.
  • Tekhead.it becomes the most read blog in the world in 2017
  • Cats take over the planet and dogs are forced to form a rebel alliance which is ultimately victorious when a chihuahua takes out the entire cat leadership in one go, with a stolen reaper drone.Cats vs Dogs
  • Jonah Hill wins Strictly Come Dancing, narrowly defeating Frankie Boyle and Charlie Brooker in the final.
And finally…

Here’s wishing you all an awesome, fun and prosperous 2017!

AWS Certified Developer Associate (CDA) Exam Study Guide and Materials

Following on from my previous AWS exam experience post for the AWS Certified Developer Associate (CDA) exam from Amazon, the following describes the study materials I used towards the exam.

As a reminder, this is my second AWS exam, having completed the AWS Certified Solution Architect Associate exam earlier this year. As such the materials I used to study towards the AWS Certified Developer Associate exam are more sparse, due to the level of knowledge I already have.

For a really full picture of all of the materials I’ve used over the last 12 months, I highly recommend you check out the Certified Solution Architect Associate exam experience and the Certified Solution Architect Associate study guides, along with a number of tips, tricks and gotchas I have posted over the past few months. I also did a podcast recently with Scott Lowe on the subject of learning AWS. If you are new to AWS, I highly recommend you check it out!

AWS Certified Developer Associate CDA Full Stack Journey

Study Materials

Whilst studying for the exam, I used the following study materials:

  • Exam Blueprint
    • This is always the go-to document for almost any current industry certification, and should be used as your primary guide for resources and areas to study. In the case of the AWS Exam Blueprint, they actually direct you to specific white papers to review as well as the content areas to study.
    • AWS CDA Exam Blueprint
  • ACloud.Guru AWS Certified Developer Associate training course.
    • As with the CSA course, the quality of the production (especially as Ryan and co are a small startup) is excellent. Remember that as Ryan says, they are focussed on teaching you the knowledge to pass the exam, not teaching you everything in AWS. There is no substitute for labbing and working with AWS day to day to become an expert, but you can certainly pass the exam based on this course! This might then help you get your first AWS job and gain the experience you need to be a real Cloud Guru! 🙂
    • The course has around about 10-12 hours or so of content, but I would say it took me 15-20 hours in total between all of the lab work, coming up with my own scenarios to practice configuring different elements, completing the quizzes, and researching any areas where I got a quiz answer incorrect or wasn’t sure of the reasons for a specific answer. Ryan also speaks quite slowly and very clearly, so I find that watching it at 1.5x speed or above can help get through the videos on the areas you know well already. Remember to slow it back down for new content areas of course!
  • QA Architecting on AWS & Advanced Architecting on AWS compressed training course
    • Myself and a number of colleagues completed both of the 3 day architecting courses (standard and advanced) in a rather intense, but very informative 5 day week! This was an awesome course, and really helped my gain breadth and depth of knowledge, but I would not say it was critical to passing the Developer exam itself.
  • White Papers
  • AWS CSA Official Practice Exam and Sample Exam Questions
    • I would say this is a good indicator of the level of difficulty of the actual exam.
    • Sample AWS CDA Exam
  • FAQs
  • Other Articles and Resources – The AWS documentation site is an absolute goldmine of information, and most of the articles are well written and easy to consume. Significantly more so than some of the best known “kb” and documentation sites in the industry IMHO. The following is a list of some of the articles I dipped in and out of while researching for the exam as well as my AWS Tips and Gotchas blog series:
  • And finally…
    • I say this about every single exam I have ever taken – lab it, lab it lab it! It is a million times easier to answer a question based on something you have actually done yourself! Don’t try to just learn the theory, spend a bit of time doing it in practice and you will reap the benefits in both the exam and real life!pass
Want to Learn More?

Don’t forget to check out my other AWS articles tips here:

Index of Tekhead.it Blog Posts on Amazon AWS

Scale-Out. Distributed. Whatever the Name, it’s the Future of Computing

Scale Out

We are currently living in the fastest period of innovation in the technology space which there has probably ever been. New companies spring up every week with new ideas, some good, some bad, some just plain awesome and unexpected!

One of the most common trends I have seen in this however was described in a book I read recently, “The Second Machine Age” by Erik Brynjolfsson & Andrew McAfee. This trend is that the majority of new ideas are (more often than not) unique recombinations of old ones.

Take for example the iPhone. It was not the first smart phone. It was not the first mobile phone, the first touch screen, or the first device to run installable apps. However, Apple recombined an existing set of technologies into a very compelling product.

We also reached a point a while back where clock speeds of CPUs are no longer increasing, and even CPUs are scaling horizontally. Workloads are therefore typically being designed to scale horizontally instead of vertically, taking advantage of the increased compute resources available whilst avoid being locked to vertically scaling clock speeds.

Finally, another trend we have seen in the industry of late is inexpensive and low power CPUs from ARM, being used in all sorts of weird and wonderful places; often providing solutions to problems we didn’t even know we had. Up until now, their place has generally been confined outside of the data centre. I am, however, aware of a number of companies now working on bringing them to the enterprise in a big way!

So, in this context of recombination, imagine then if you could provide a scale-out storage architecture where every single spindle had its own compute directly attached. Then combine many of these “nano-servers” together in a scale-out JBOD form factor on subscription pricing, all managed from a Meraki-style cloud portal… well that’s exactly what Igneous Systems have designed!

Igneous Systems Nano-Servers

One of the coolest things about scaling out like this, is that instead of a small number of large fault domains based around controllers, you actually end up with many tiny fault domains instead. The loss of any one controller or drive is basically negligible within the system and replacements can be sorted at the convenience of the administrators, rather than panicking about replacement of components asap. Igneous claim that you can also scale fairly linearly, avoiding the traditional bottlenecks of a dual controller (or similar) system. It will be interesting to see some performance benchmarks as they become available!

It’s still early days, so they are doing code deployments at some pretty high rates, around every 2 weeks, and to be honest I think there is a bit of work to be done around clarity of their SLAs, but in general it looks like a very interesting platform, particularly when pricing is claimed to be as low as half the price of Amazon S3.

Now as you might expect from a massively distributed solution, the entry point is not small, typically procured in 212TiB chunks, so don’t expect to use it for your SMB home drives! If however you have petabyte-scale data volumes and are looking for an on-prem(ises!) S3 compatible datastore, then its certainly worth looking at Igneous.

The future in the scale-out space is certainly bright, now if only I could get people to refactor their single-threaded applications!… 🙂

Further Info

You can catch the full Igneous session at the link below – it certainly was unexpected and interesting, for sure!

Igneous Systems Presents at Tech Field Day 12

Further Reading

Some of the other TFD delegates had their own takes on the presentation we saw. Check them out here:

Disclaimer: My flights, accommodation, meals, etc at Tech Field Day 12 were provided by Tech Field Day, but there was no expectation or request for me to write about any of the vendors products or services.

%d bloggers like this: