NSX Uncovered – Part 2, Solution Overview

NSX, VMware

Network virtualization is by no means a new concept for VMware. Think about it for a moment — wherever vSphere (or any other VMware T1 or T2 hypervisor) has been implemented, a virtual switch exists and connects guest VMs to the physical world. That’s more than 500,000 customers globally, millions of vSphere hosts, and many more millions of virtual network ports backed by a standard (vSwitch) or distributed virtual switch (dvSwitch). In fact, if you count the network ports provisioned by vSphere and logically assigned to VM nics, one can argue that VMware is one of the top datalink providers on earth. Okay, perhaps that’s a stretch, but you get my point! VMware virtual networks have existed just about as long as VMware itself. And since the very beginning, there has been no shortage of innovation. The vSwitch has evolved in many ways, leading to new technologies, increased scope and scale, distributed architectures, open protocol support, ecosystem integration, and massive adoption. Over the years VMware has continued to introduce new networking technologies through organic maturity and strategic acquisition — ESXi platform security, dvSwitch (and associated services), vShield, vCloud Networking and Security (vCNS), etc. — and leveraged 3rd party integration into partner solutions, such as Cisco’s Nexus 1000v (a solution brought to market by tight collaboration between VMware and Cisco).…

NSX Uncovered – Part 1, Introduction

NSX, VMware4 Comments

VMware’s Network Virtualization Platform, NSX, is an immensely powerful technology that can transform a datacenter’s infrastructure and streamline network service delivery across the enterprise. NSX’s scope, scale, and capability will easily impress techies, CCIE’s, and IT stakeholders alike. NSX changes the topology of a traditional hardware-bound network by eliminating the dependency on all that “intelligence” baked into proprietary hardware. Instead, the logic and associated services are delivered through a software control plane. Separating the control and data planes effectively reduces the physical network to a glorified IP packet forwarder.

With that said, it is also important to understand that NSX is not a re-write of your network and the fundamental concepts it is built upon. The abstraction of the logic from the physical underpinnings is a modern approach to designing, building, and servicing network architectures, but the fundamentals — the protocols, tools, concepts, etc. — are still at play. And for that reason, i’m often baffled when I enter into a debate with a “traditional” network engineer about the ins-and-outs of physical vs. virtual networking technologies like NSX. What I quickly realize is they are not defending the concepts or technology, they are defending their skill set. It’s a fear or reluctance of straying from what they know best.…

Scaling VSAN: Adding a New VSAN Host

VMware, VSAN, vSphere

In my previous post, VMware VSAN Meets EZLAB, I highlighted the implementation of VSAN into my vCloud lab. At the time of writing, 1 of 4 my vSphere hosts was down for maintenance and was not added to the VSAN cluster. Now that it’s back online, I thought I would share the experience of adding a new VSAN host…and another 2.25TB of capacity.

Here’s a “before” shot — 3 hosts configured with 6.13TB total capacity…

Step 1: Add the host to the existing VSAN cluster: I’m pretty sure I don’t have to review how this is done. Once added, configure all settings to match the other hosts in the cluster…in my setup I’m using a dedicated pNIC and vmkernel port (vmk1) for all storage traffic.

Adding new host to the vSphere cluster

The local storage of the new host, a Dell R610 box, is configured identically to the other
three — 1 x 256GB SSD + 3 x 750GB SATA drives. And since it is
identical, that also means I had to deal with the fact that the PERC 6/i
controller does not support JBOD. So, I stepped through the work-around to identify the SSD as such…

before…the SSD show up as “Non-SSD”


“esxcli storage…” command executed on host



the SSD is now recognized as an SSD drive


Step 2: Enable VSAN Service on the vmk port…

Configure vmk for VSAN traffic

Step 3: Disk Management…

Since my VSAN cluster is configured to “Manual” mode, adding the new host’s disks to the cluster takes an additional step.…

VMware VSAN meets EZLAB

Architecture, VMware, VSAN, vSphere7 Comments

Let me just get this out of the way – I’m a HUGE fan of VSAN (aka VMware Virtual SAN). I was first in line to drink the kool-aid when VSAN was nothing but a “what if…?”. Fast forward to the present — VSAN beta (refresh) is backing my entire lab. I’m tweaking, testing, breaking (learning), and sharing my thoughts on VSAN’s capabilities, performance, and benefits ahead of the official launch. This is all in good order because even the beta has exceeded my expectations in what VMware would ship as a 1.0 product.

I can write page after page about the ins-and-outs of VSAN, but fortunately several very respected individuals have already done so. For starters, Duncan Epping at yellow-bricks.com not only is a massive contributor to the cause, but has also put together a nice list of VSAN resources from around the web that is a must-see. But lets face it, if you’re tracking VSAN you’ve probably already been there, done that 🙂  So for this post, I’m going to focus instead on my VSAN home lab build and experiences thus far. I’ve shared several preliminary stats on twitter (here, here, and here) ahead of any tweaking and will be sure to post additional results as I play with things a bit more.…

vCAC Property Dictionary: Customize Service Requests with Dynamic Menus

Automation, VMware, vRA20 Comments

//Update// – this procedure works with vCAC 6.2 (not in 6.1). The UI will look different, but same concepts apply. The property dictionary in vCAC 6 is located at Infrastructure (tab) –> Blueprints…

In a previous post I discussed the benefits of utilizing vCloud Automation Center’s Property Dictionary to add input options during the application request process. This is one of the quickest ways to add some flare (and serious functionality) to the application request and allows users to have a little more granularity in the service selection process. The Property Dictionary – and custom properties in general – also help drive down the number of Blueprints thanks to the logic that can be baked right into the process.

Let’s review (from previous post)
In addition to creating a custom property, which can trigger external actions (workflows), you can create property definitions that utilize vCAC’s built-in reserved custom properties, which can be used take a user’s input and apply it to an existing custom property – think of it as an answer file of sorts. For example, a drop-down list that presents the networks available to a given Provisioning Group and allowing users to select a preferred network. The property dictionary can also be used to build relationships between parent and child definitions to provide a more dynamic and nested functionality – the user selects a location (“Datacenter A”, parent) and, based on that selection, only appropriate networks (“NetA”, “NetB”, “NetC”, children) dynamically become available.
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Use vCloud Automation Center’s Property Dictionary to Customize ServiceRequests

Automation, VMware, vRA2 Comments
As I’ve alluded to on more than one occasion, VMware’s vCloud Automation Center (vCAC) is more than just a cloud portal. It is a solution designed to take defined business policy and requirements and apply them to the underlying IT systems, providing a governance model that delivers infrastructure-as-a-service (IaaS) with business agility in mind. Once defined, those policies are applied to vCAC’s individual policy definitions to build a “mesh policy” that provide the governance and controls for self-service, automation, and lifecycle management. The result is a finely-tuned service deployment model that defines the applications (blueprints), where they can be deployed, who can deploy them, and under which circumstances they are (or aren’t) allowed to be deployed. More than just a cloud portal.
vCAC 5.1 provides a ton of this capability “out of the box”, but the solution can also add a tremendous amount of additional capability using built-in control concepts, custom properties, and native integration with external tools such as PowerShell, vCenter Orchestrator (vCO), and others. The possibilities are immense. Those of you who are familiar with vCO will immediately realize the power of that last statement. If you’re not familiar with vCO you should stop reading this, download/deploy the vCO appliance, and make it your best friend…then come back and finish reading.
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Heterogeneous Foundations for Cloud: Simply Overrated

Architecture, Cloud, VMware2 Comments

Let me start by making a statement that you may or may not agree with – being heterogeneous is often a problem in need of a solution…not a strategy. Allow me to explain…

I spend a lot of time discussing VMware’s vCloud solution stack to many different customers, each with varying objectives when it comes to their cloud journey. The majority of them fall under two groups – Group A) those who know what they want and where to get it and Group B) those who think they know what they want and have been shopping for the “right” solution since before cloud hit the mainstream – one “cloud bake-off” after another while changing requirements in real-time. Can you guess which ones meet their objectives first? Hint: it’s the same group that delivers IaaS to their enterprise and/or customers using proven technologies and trusted relationships in the time it takes the other to host a bake-off.
For group A the requirements are straightforward – deliver me a solution (and technology) that meets exceeds all the characteristics of cloud [see: defining the cloud] so I can transform my infrastructure and deliver next generation IT to the business. Sound familiar? It should because this is where the greater majority is – whether they accept it with open arms or are trying to meet agency mandates (or both).
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Are you ready for Cloud?

Cloud

Are you ready for all that is cloud??  VMware recently released a cloud self-assessment questionnaire that walks you through your organization’s readiness in the following categories (from the site):

  • Strategy – Aligning business needs with IT capability.
  • Process – Streamlining and automating processes to achieve business agility.
  • Architecture – Establishing an enterprise architecture for this new IT infrastructure.
  • Technology – Designing and deploying your technology infrastructure from virtualization to cloud.
  • People and Governance – Creating the roles and  skills necessary to ensure company-wide adoption, and the accountability  framework and policies for stakeholder collaboration.
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@virtualjad
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