This isn’t the blog you’re looking for

After years of slumbering the blog has now officially become an archive. Just like technology moves on, I am moving on the new stuff as well… Cloud Native! This time just not from a pure VMware perspective, but more around Cloud Native as a whole. Containers, Kubernetes, persistent storage… All of that jazz!

The VMdamentals blog dried up years ago. As I no longer had access to a real lab it was hard to maintain the technical deepdives I once did on all of the cool (mostly storage related) geeky subjects.

Although I have been part of the EMC / Dell family for quite some years, I only recently moved into the Technologist team at Dell ISG. This move means I now one again have access to an extensive lab, so I am once again getting my geek on!!

#DemoDemoDemo !

Whether you are new to the world of Cloud Native or a seasoned expert, I will continue to share knowledge and help you stay up-to-date with the latest trends and best practices in the industry. Join me on this exciting journey and let’s explore the fascinating world of Cloud Native together!

Take a peek at the new Konversations blog site!

Dusting off ye olde blog site

Wow that was LOADS OF DUST.

Hi to anyone who might still be lurking here! After many years of blogging on, at some point I ran out of capabilities and time to do all of these techie/nerdy things and blog about it. Even though I had tons of fun building out all of this stuff, at some point this blog site died a slow death. Move along, nothing to see here…


With me recently moving into a new roll within Dell Technologies, I once again have access to a lab, and even better… I am given time to play around with all kinds of nerdy stuff! So yes: There will be a jumpstart where I will start blogging again! It won’t be, as that name has served its purpose for many years when I dissected the world of Virtual Machines (VMware Virtual Machines specifically). As the world has progressed since then, the tip of the spear today lies in the world of Containers… And you say Containers today you say Kubernetes. So guess what will be “coming next”…!!


Honored to be part of a Cisco’s “Engineers Unplugged” session

While visiting Cisco Live in Milan this week, I was honored to present at the Cisco’s “Engineers Unplugged” show. Together with my Italian college and personal friend Fabio Chiodini we drew up a relatively new architecture for shared storage.

In this session we showed how you can basically use servers with local storage attached to deliver shared storage out of a software layer.

There are many products out there today that use this storage architecture. During Engineers Unplugged we only described the architecture and didn’t really go into specific products.

This new approach of delivering shared storage purely out of software is some of the new magic that we are starting to see out there. As the trademark of Engineers Unplugged seems to be drawing unicorns, we decided to include a unicorn right into the presentation:

Been practising on the Unicorn - Could have been greater, but ey!

Been practising on the Unicorn – Could have been greater, but ey!

“From hippo to Unicorn… It is easily done in software!”

@Lauren: We beat you to it this time 🙂 Shared storage out of software is so much magic we felt the unicorn should Read the rest of this entry »

VMworld Bacelona 2014: Limits lifted, cool technology at your fingertips.

And we’re back at VMworld Barcelona! Overlooking the ever-crowded Hands-on labs I’m writing this piece. Crowded even on partner day. That can only be called a success and VMworld is still waking up! If you’re at VMworld Barcelona, be sure to stop by the HoL and play with all the new cool toys!

It will be interesting to see what VMware and partners have in store for us this time round. With EVO-RAIL getting a lot of attention, all hyperconverged startups better get ready to go above and beyond what I think will quickly become the “defacto standard” if they fail to hop on to the next level. Staying ahead is key if not vital to them, and I cannot wait what the various startups have come up with to secure their success for time to come.

Next to hyper-converged there is immense focus on cloud. The VMware Cloud solution is more and more becoming a complete solution to customers cloud needs. Add the EMC and Pivotal solutions into the mix, and we are finally getting where we have been promising to go: A digestible yet versatile well-run hybrid cloud. The journey to the cloud is still relevant, and the Software Defined DataCenter is the way to get there. With this complete solution (just look for EMC Hybrid Cloud or EHC) you can build scary things in extreme short amounts of time. I was involved in a Prove Of Concept for a large bank in the Netherlands where we constructed a fully functional and actually working EHC solution literally from scratch in just TWO WEEKS! Integrated with EMC storage, EMC Avamar backup and several third party vendors. All in two weeks. That should actually say it all…!

Finally I see a lot of focus on VDI and end-user computing. Awesome stuff, the VMware solutions around end-user computing have always been a strong proposal and they don’t seem to be slowing down. With the biggest issue in VDI still being (storage) performance, I encourage you to look at EMC’s XtremIO. XtremIO is not just any full-flash storage array, but it is designed very cleanly. Most important, where others stop at performance and maybe some cool storage services like dedupe, compression etc XtremIO is primed to go all the way into the SDDC. Don’t let your “super fast all-flash array” become the next silo in your datacenter! Ow by the way did I mention that the VMware Hands-on Labs are running on top of XtremIO again this year? The rate on which they spit out new VMs to support all of the sessions here… Just amazing.

We live in IT (Interesting Times).

How cool is this: EMC’s Recoverpoint goes INSIDE vSphere!

EMC’s Recoverpoint has always fascinated me. The technology that manages to split writes out and use those to journal these writes and replicate them is awesome technology. Unfortunately as with many cool technology features, it was complex and prone to error if not doen exactly right. Today EMC announced something that makes very cool technology WAY MORE cool: Recoverpoint will sit inside the hypervisor. What you can do then is mind blowing!

A very quick intro into EMC recoverpoint

Recoverpoint is basically a snapshot and replication technology that is independent of the used storage architecture. And much more. And with limitations. Basically Read the rest of this entry »

EVO:Rail – VMware enters the hyperconverged space

A very exciting announcement was made at VMworld today: EVO:Rail. I’ve known for a while about this under the codename “Marvin” (and EMC’s appliance related to this codenamed “Mystic”), now it is out there with it’s official naming. But what is it? Disclaimer: I work for EMC, but what I write here are my own opinions.

First things first: A quick intro to hyper-converged

First we had converged infrastructure. Converged infrastructure operates by grouping multiple components together into a single, optimized computing package. Components of a converged infrastructure may include servers, data-storage devices, networking equipment and software for IT infrastructure management, automation and orchestration. VCE’s Vblock is a prime example of converged infrastructure. Below that we have reference architectures like EMC’s VSPEX and NetApp’s Flexpod.

So on to even higher integration and automation: “hyper-converged”. Hyper-converged architectures consolidate and manage compute, Read the rest of this entry »

VMware® vRealize™…. Really??

Oh no. VMware just announced a huge change in names. I know “vCAC” wasn’t the best as in many languages CAC means… well you look it up. But vRealize… Really???

The new names convention: Everything vRealize™

Someone at VMware probably thought this was pretty neat. “Let’s change everything to vRealize™, yeah!!”. I’m not a fan. Well, let’s look at Read the rest of this entry »

Solved: vCAC 6.01 “You cannot perform that action because the system cannot connect to the provider at https://vcacserver:8281/vco/api/”

After a long long rest I dusted off the blog site and I’m ready to rock again! This time with an error in vCAC 6.01 that I could not get solved… But finally did 😉

“You cannot perform that action because the system cannot connect to the provider at https://vcac:8281/vco/api/”

This is the error that kept popping up everywhere. As soon as vCAC 6.01 touched vCenter Orchestrator this would Read the rest of this entry »

Software-defined Storage = Virtualized Storage = vSAN?

I recently get more and more into discussions around Software-defined storage and storage virtualization. Is it the same, is it partly the same, is it something totally different? In this blog post I’ll try to shed some light on the technologies of today around these buzzwords and try to make some sense at the same time.

What we used to call virtualizing storage

Before we launched the idea of the Software-defined Datacenter (SDDC) and Software-defined Storage (SDS), we were already putting hardware between storage and hosts creating an abstraction layer between the two. Good examples of this technologies are IBM’s SVC and EMC’s VPLEX.

A good example of abstraction of storage from the underlying hardware - VPLEX in a metro configuration abstracting the underlying storage to add value of stretching a LUN across phyisical locations

A good example of abstraction of storage from the underlying hardware – VPLEX in a metro configuration abstracting the underlying storage to add value of stretching a LUN across phyisical locations

These technologies look south for their storage requirements, abstract this storage and Read the rest of this entry »

Software-defined Storage: Fairy tale or Reality?

Nowadays the air is filled with the Software-defined Datacenter or SDDC for short. The idea behind this is awesome: As soon as we are able to define and manage compute, storage and networking using software only, we can define, build, scale and destroy virtual datacenters at the press of a button. On top, there’s a web portal. Underneath, there is just a generic x86 hardware platform.

Software-defined Storage

Software-defined compute is something that has been going on for years already. Most vendors that sell hypervisors, especially VMware have a lot of work into the software-defined pillar that is called “compute”.

But when we look at the storage component of the Software-defined Datacenter (often called SDS or Software-defined Storage), things aren’t as advanced as in the compute pillar. Or are they? Read the rest of this entry »

Soon to come
  • Coming soon

    • Determining Linked Clone overhead
    • Designing the Future part1: Server-Storage fusion
    • Whiteboxing part 4: Networking your homelab
    • Deduplication: Great or greatly overrated?
    • Roads and routes
    • Stretching a VMware cluster and "sidedness"
    • Stretching VMware clusters - what noone tells you
    • VMware vSAN: What is it?
    • VMware snapshots explained
    • Whiteboxing part 3b: Using Nexenta for your homelab
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