Tag Archive for Cloud

What’s your definition of Cloud DR, and how far down do the turtles go?

Dr Evil Disaster Recovery

WARNING – Opinion piece! No Cloud Holy Wars please!

DR in IT can mean many different things to different people. To a number of people I have spoken to in the past, it’s simply HA protection against the failure of a physical host (yikes!)! To [most] others, it’s typically protection against failure of a data centre. As we discovered this week, to AWS customers, a DR plan can mean needing to protect yourself against a failure impacting an entire cloud region!

But how much is your business willing to pay for peace of mind?

When I say pay, I don’t just mean monetarily, I also mean in terms of technical flexibility and agility as well.

What are you protecting against?

What if you need to ensure that in a full region outage you will still have service? In the case of AWS, a great many customers are comfortable that the Availability Zone concept provides sufficient protection for their businesses without the need for inter-region replication, and this is perfectly valid in many cases. If you can live with a potential for a few hours downtime in the unlikely event of a full region outage, then the cost and complexity of extending beyond one region may be too much.

That said, as we saw from the failure of some AWS capabilities this week, if we take DR in the cloud to it’s most extreme, some organisations may wish to protect their business against not only a DC or region outage, but even a global impacting incident at a cloud provider!

This isn’t just technical protection either (for example against a software bug which hits multiple regions); what if a cloud provider goes under due to a financial issue? Even big businesses can disappear overnight (just ask anyone who used to work for Barings Bank, Enron, Lehman Brothers, or even 2e2!).

Ok, it’s true that the likelihood of your cloud provider going under is pretty teeny tiny, but just how paranoid are your board or investors?

Cloud DR

Ultimate Cloud DR or Ultimate Paranoia?

For the ultimate in paranoia, some companies consider protecting themselves against the ultimate outage, by replicating between multiple clouds. In doing so, however, they must stick to using the lowest common denominator between clouds to avoid incompatibility, or indeed any potential for the dreaded “lock-in”.

At that point, they have then lost the ability to take advantage of one of the key benefits of going to cloud; getting rid of the “undifferentiated heavy lifting” as Simon Elisha always calls it. They then end up less agile, less flexible, and potentially spend their time on things which fail to add value to the business.

What is best for YOUR business?

These are all the kinds of considerations which the person responsible for an organisation’s IT DR strategy needs to consider, and it is up to each business to individually decide where they draw the line in terms of comfort level vs budget vs “lock-in” and features.

I don’t think anyone has the right answer to this problem today, but perhaps one possible solution is this:

No cloud is going to be 100% perfect for every single workload, so why not use this fact to our advantage? Within reason, it is possible to spread workloads across two or more public clouds based on whichever is best suited to those individual workloads. Adopting a multi-cloud strategy which meets business objectives and technical dependencies, without going crazy on the complexity front, is a definite possibility in this day and age!

(Ok, perhaps even replicating a few data sources between them, for the uber critical stuff, as a plan of last resort!).

The result is potentially a collection of smaller fault domains (aka blast radii!), making the business more resilient to significant outages from major cloud players, as only some parts of their infrastructure and a subset of applications are then impacted, whilst still being able to take full advantage of the differentiating features of each of the key cloud platforms.replication photocopierOf course, this is not going to work for everyone, and plenty of organisations struggle to find talent to build out capability internally on one cloud, never mind maintaining the broad range of skills required to utilise many clouds, but that’s where service providers can help both in terms of expertise and support.

They simply take that level of management and consulting a little further up the stack, whilst enabling the business to get on with the more exciting and value added elements on top. Then it becomes the service provider’s issue to make sure they are fully staffed and certified on your clouds of choice.

*** Full Disclosure *** I work for a global service provider who does manage multiple public clouds, and I’m lucky enough to have a role where I get to design solutions across many types of infrastructure, so I am obviously a bit biased in this regard. That doesn’t make the approach any less valid! 🙂

The Tekhead Take

Whatever your thoughts on the approach above are, it’s key to understand what the requirements are for an individual organisation, and where their comfort levels lie.

An all-singing, all-dancing, multi-cloud, hybrid globule of agnostic cloudy goodness is probably a step too far for most organisations, but perhaps a failover physical host in another office isn’t quite enough either…

I would love to hear your thoughts? Don’t forget to comment below!

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!

Tech Field Day 12 (TFD12) – Preview

Tech Field Day 12 (TFD12)

For those people who haven’t heard of Tech Field Day, it’s an awesome event run by the inimitable Stephen Foskett. The event enables tech vendors and real engineers / architects / bloggers (aka delegates) to sit down and have a conversation about their latest products, along with technology and industry trends.

Ever been reading up on a vendor’s website about their technology and had some questions they didn’t answer? One of the roles of the TFD delegates is to ask the questions which help viewers to understand the technology. If you tune in live, you can also post questions via twitter and the delegates, who will happily ask them on your behalf!

As a delegate it’s an awesome experience as you get to spend several days visiting some of the biggest and newest companies in the industry, nerding out with like-minded individuals, and learning as much from the other delegates as you do from the vendors!

So with this in mind, I am very pleased to say that I will be joining the TFD crew for the third time in San Jose, for Tech Field Day 12, from the 15th-16th of November!

Tech Field Day 12 (TFD12) Vendors

As you can see from the list of vendors, there are some truly awesome sessions coming up! Having previously visited Intel and Cohesity, as well as written about StorageOS, it will be great to catch up with them and find out about their latest innovations. DellEMC are going through some massive changes at the moment, so their session should be fascinating. Finally, I haven’t had the pleasure of visiting rubrik, DriveScale or Igneous to date, so should be very interesting indeed!

That said, if there was one vendor I am probably most looking forward to visiting at Tech Field Day 12, it’s Docker! Container adoption is totally changing the way that developers architect and deploy software, and I speak to customers regularly who are now beginning to implement them in anger. It will definitely be interesting to find out about their latest developments.

If you want to tune in live to the sessions, see the following link:
Tech Field Day 12

If for any reason you can’t make it live, have no fear! All of the videos are posted on YouTube and Vimeo within a day or so of the event.

Finally, if you can’t wait for November, pass the time by catching some of the fun and highlights from the last event I attended:

Storage Field Day 9 – Behind the Curtain

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