What an employer is looking for in a Technical Role by @saintdle

This guest post is by Dean Lewis who blogs at Educational Centre, where you can find his back catalogue of posts. Find out more about the guest blogger program here.

So after an interesting North West VMUG event on 12th November, I’ve decided to write my own comments on the state of employment within IT. This is prompted by Neil Mills Talk at the above VMUG event, where he gave tips on super charging your CV, and the industry as he see’s it.

Most of my recruiting experience from the last year comes from a reseller/solutions provider point of view.

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VMware Site Recovery Manager – Installation Tips and “Gotchas” by @btkrausen

This guest post is by Bryan Krausen who blogs at ITDiversified, where you can find his back catalogue of posts. Find out more about the guest blogger program here.

VMware’s Site Recovery Manager provides the ability to failover VMs in the event of a disaster or for planned migrations between datacenters. In my case, we’re using it for the former as we have two “main” datacenters, one located in Louisville and the other in downtown Chicago. Although we’ve tried to deploy applications with site redundancy in mind, some applications are simply reliant on a single site, whether by limitations of the software or by choice.

Decisions, decisions… Planning a VMware SRM deployment takes considerable thought as there are many choices and routes to accomplish the same tasks. For example, we could choose to utilize EMC’s RecoverPoint or VMware vSphere Replication to replicate the data to the opposite site. We could choose to create a dedicated “DR” VLAN or should we explore spanning Layer 2 across the datacenters using VXLAN or OTV. Should we purchase additional capacity at both sites or simply suspend “Tier 2/3″ VMs in the event of a failure to ensure resources are available?

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You Gotta Keep ‘Em Automated! by @vmiss33

This guest post is by Melissa Palmer who blogs at vmiss.net, where you can find her back catalogue of posts. Find out more about the guest blogger program here.

As part of #vDM30in30 Eric Wright wrote a great article on reducing technical debt, which got me thinking quite a bit.  Mainly about automation, and the journey it takes to get there.  Here’s a couple more ideas on how to get you started on the journey if you haven’t already begun.

IMG_0958

(Mission Control at NASA Wallops.)

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THE GOAL: THROUGHPUT AND EFFICIENCY by @rnelson0

This guest post is by Rob Nelson who blogs at http://rnelson0.com/, where you can find his back catalogue of posts. Find out more about the guest blogger program here.

One of the most important concepts of The Goal is to increase throughput. Throughput is the rate at which the system generates money through sales. That is, when your company takes raw materials, processes them into a finished good, and sells it, the measured rate of that activity is your throughput. Severe emphasis on sales. Throughput is not the same as efficiency. Today, we will look at throughput vs. efficiency and how these concepts apply to IT.

Though we are focusing on throughput, we must state the descriptions of the two other measurements. Inventory is all the money that the system has invested in purchasing things which it intends to sell. Operational expense is all the money the system spends in order to turn inventory into throughput. I list the three definitions together because the definitions are precise and interconnected. Changing even a single word in one requires the other two be adjusted as well.

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OpenStack Series: Part 13 – Docker in OpenStack by @vCloudernBeer

This guest post is by Anthony Chow who blogs at http://cloudn1n3.blogspot.co.nz/, where you can find his back catalogue of posts. This post is part of a pretty serious series on OpenStack, that starts here. Find out more about the guest blogger program here.

Often time there is the notion that with Docker, the Linux Container technology is going to replace server virtualization. The reasoning for this thought is that with Linux Container virtualize application on the operating system level in which the hypervisor is no longer needed.

Another camp of thought is that container does not have the robustness and enterprise ready feature such as resource allocation management, high availability or even manageability that can be offered by VMware.

 

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How to keep current in IT while living in the Midwest by @jbcompvm

This guest post is by James Brown who blogs at http://jbcomp.com/, where you can find his back catalogue of posts. Find out more about the guest blogger program here.

Good morning, afternoon, and evening to all the blog readers.

I was challenged by Eric Wright and the #vDM team to do two things. First was to write 30 blogs in 30 days. This seems to be working out, The second was to step up even further and be a guest blogger for #vBrownBag. We will see if I am asked to do it again.

 

So with the explanation out of the way, here we go.

The above introduction was more than just an explanation. In January of 2014, I decided it was time for me to start getting my name out there to maybe move up into a better career.  So I started a blog, updated my Linked-in, and started a Twitter account. The community I found on twitter was overwhelming.  One of the first people I followed on Twitter was Bryon Schaller.  He had just been accepted to participate in the #VirtualDesignMaster program.  So I started watching and following. I became more and more interested in the VCDX program and becoming a Virtual Architect.  From there I have gather 132 twitter followers.  I have followed 318 people/vendors.

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VXLAN: CONCEPTS, OPERATION AND IMPLEMENTATION (2-2) by @davidmirror

This guest post is by David Espejo, who blogs at vcloudopia.wordpress.com, where you can find his back catalogue of posts. David writes in Spanish, so if you don’t speak Spanish be sure to use a browser that will translate for you. Find out more about the guest blogger program here.

It has been a while since I published the first part of this entry and well, it’s time to continue.

The more I learn about it, the harder it is to compress everything into a single blog post. On this occasion I will cover the implementation of VXLAN on a VMware vSphere environment and some of the following topics will be covered in subsequent posts:

A. VXLAN and the multicast requirement: three different levels of (in) dependence from Multicast

B. vCNs Edge as an efficient and cost-effective VXLAN gateway

C. A day in the life of a VXLAN frame

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Why You Should Be Learning About OpenStack by @vmiss33

This guest post is by Melissa Palmer who blogs at vmiss.net, where you can find her back catalogue of posts. Melissa was the creative (evil) genius behind the scenarios for the Virtual Design Master Challenge. Find out more about the guest blogger program here.

I first delved into the world of OpenStack about a year ago.  I had heard it thrown around in meetings, and started seeing a fair bit about it on twitter.  As I did more research I found out it began in 2010 as a research project between Rackspace and NASA.  Which of course, only intrigued me further, since I’m a huge space nerd.  I’ve also heard it come up in discussion more often than not in the last year or so.

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VXLAN: CONCEPTS, OPERATION AND IMPLEMENTATION (1-2) by @davidmirror

This guest post is by David Espejo, who blogs at vcloudopia.wordpress.com, where you can find his back catalogue of posts. David writes in Spanish, so if you don’t speak Spanish be sure to use a browser that will translate for you. Find out more about the guest blogger program here.

VXLAN seems increasingly to be on the lips of all who follow the network virtualization market these days. On one hand the Internet Engineering Task Force   (IETF) approved about three weeks passed the state technology VXLAN draft or draft a protocol to be recognized by an RFC, which provides a more solid basis for consolidation.

Moreover, the growing rise of SDN suite of VMware: NSX has led partners like Juniper Networks, Arista Networks, among others; to offer devices capable of integrating with NSX using as VXLAN overlay protocol, for their capabilities and flexibility for infrastructure requirements.

This is the motivation for this series of 2 entries, fingers crossed, will become more posts on the progress of NSX as a platform for SDN.

Let’s get down.

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VMOTION ISSUE – A SPECIFIED PARAMETER WAS NOT CORRECT

This guest post is by Steven Kang who blogs at ssbkang.com, where you can find his back catalogue of posts. Find out more about the guest blogger program here.

INTRODUCTION

While upgrading ESXi 5.0 servers to 5.5 , I faced an issue that a bunch of virtual machines weren’t able to be vMotioned while entering maintenance mode.

In this blog post, I would like to share with you how I went through the issue and found the solution.

SYMPTOM

Initial symptom was that whenever I execute vMotion with a several virtual machines, it stopped at 14% saying:

“A specified parameter was not correct”

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