What’s the Difference Between High Availability and Fault Tolerance in VMware vSphere?

High availability’s goal within VMware vSphere is to minimize downtime, not prevent it. This feature is available in all editions of vSphere except Essentials. It is designed to handle the failure of any or all of the following: Loss of a physical ESXi server. Loss of a virtual machine. Loss of an application within a […]

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Diving Deep into AWS at re:Invent 2014

Next week is my first AWS re:Invent conference. We began delivering Amazon Web Services (AWS) curriculum about a year ago, so it will be nice to meet the experts who created it and the users who find it so essential to their jobs. Although I’ve been promoting our AWS classes via social media for 12 months, I am no expert.

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Lessons Learned Deploying Hadoop

So you’ve done your research and quickly realized that Hadoop is going to be at the very core of your company’s Big Data Platform, given that data storage and processing will never get more cost effective than open-source software running on commodity hardware. The next level down the rabbit hole has you in a quandary, though. Beyond Hadoop, you start running into technologies like Hive, Impala, Pig, Storm, YARN and other elements from Hadoop’s periodic table of technologies.

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