Editor’s note: Keith Barker has been a CBT Nuggets Trainer since 2012. Some of his many areas of expertise include VMware, Cisco and Security. Out with the Old, In with the New VMware vSphere recently updated from version 5.5 to 6.0. Fortunately, most of the knowledge, understanding, and skills learned by using the previous version still apply to version 6.0. In this blog post I’ve written especially for VMinstall, I would like to highlight several changes that were implemented in version 6. What Makes vSphere 6 Better? 1. The vCenter server appliance, which previously had less capacity, is now on par with… [Read More]
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I’ve been managing IT staff for a few years now and aside from physical violence, I’ve seen some amazing demonstrations of amygdala hijackings. Wow, that’s an interesting phrase for an IT manager, right? I learned this term a while back while listening to Dr. Daniel Goleman talk about emotional intelligence. After hearing Dr. Goleman’s explanation about how our brain is constructed, and how this one part of the brain is the cause of our reactive behavior, I immediately understood why so many people in IT are the way we are. Emotion Intelligence In hind-sight, now it makes total sense how someone… [Read More]
What did we learn in the last 12 months? In case you missed my articles or eBooks over the last year, I’ll summarize them for you in 3 actionable groups of takeaways: How IT is struggling to keep up with technology changes. (Read) How our sweet virtualization jobs are changing and expanding. (Read) What needs to change for IT to improve service delivery? (Read) Trouble Keeping Up with Technology Changes If you’re like many admins working for the average IT organization you are probably still dreaming of the day when your boss will let you buy the network, storage, and… [Read More]
We’ve all made rookie mistakes before but some errors are painful long after we’ve learned our lesson, ouch… Warning! These FIVE mistakes will make “Best of Brand” hardware look bad: Not testing ESXi host configuration settings (DRS, Storage-DRS, HA). Not testing NEW hardware deployments (server, storage, and networking). Deploying virtual servers with over-provisioned resources (memory, CPU, and storage). Not testing virtual hardware configs (vNIC, vControllers, and vDisks). Not properly managing dependent resources and oversubscribing storage and networking. Do you want to know why it’s so critical for new vSphere admins to avoid these mistakes? One word, Trust! And here’s why…because… [Read More]
Are Dirty Shutdowns causing your NetApp ONTAP Update to Loop? In this post I’ll share what I learned recently about NetApp ONTAP v8.x. Let’s talk “Dirty-Shutdowns!” Beginner Alert: Mark this page because some day you might need it. This is a must know for newbies managing NetApp storage. What are Dirty-Shutdowns? A dirty-shutdown can happen for a number of reasons, for example: A software bug has caused a filer to fail-over and trigger a loop. The “dirty-shutdown” is now keeping you from updating ONTAP to fix the bug. Or a loop was caused by a forced take-over during a normal… [Read More]