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Lori MacVittie

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Top Stories by Lori MacVittie

What DevOps Can Do About Cloud's Predictable Provisioning Problem Go ahead. Name a cloud environment that doesn't include load balancing as the key enabler of elastic scalability. I've got coffee... so it's good, take your time... Exactly. Load balancing - whether implemented as traditional high availability pairs or clustering - provides the means by which applications (and infrastructure, in many cases) scale horizontally. It is load balancing that is at the heart of elastic scalability models, and that provides a means to ensure availability and even improve performance of applications. But simple load balancing alone isn't enough. Too many environments and architectures are wont to toss a simple, network-based solution at the problem and call it a day. But rudimentary load balancing techniques that rely solely on a set of metrics are doomed to fail eventually. Th... (more)

The Internet of Things and DNS

JANUARY 8, 2014 02:00 PM EST When we talk about the impact of BYOD and BYOA and the Internet of Things, we often focus on the impact on data center architectures. That's because there will be an increasing need for authentication, for access control, for security, for application delivery as the number of potential endpoints (clients, devices, things) increases. That means scale in the data center. What we gloss over, what we skip, is that before any of these "things" ever makes a request to access an application it had to execute a DNS query. Every. Single. Thing. Maybe that's ... (more)

The 'Internet of Things' and Big Data | @ThingsExpo [#IoT]

Cloud and Things and Big Operational Data Software-defined architectures are critical for achieving the right mix of efficiency and scale needed to meet the challenges that will come with the Internet of Things If you've been living under a rock (or rack in the data center) you might not have noticed the explosive growth of technologies and architectures designed to address emerging challenges with scaling data centers. Whether considering the operational aspects (devops) or technical components (SDN, SDDC, Cloud), software-defined architectures are the future enabler of business... (more)

The MacVittie-Roberts Wall of DOOM | @DevOpsSummit [#DevOps]

The MacVittie-Roberts Wall of DOOM Performance. Speed. Velocity. Quality of experience. No matter what particular turn of phrase we use to describe it, the reality is that we'll try a whole lot of things if it promises to improve application performance. Entire markets have been dedicated to this overriding unqualified principle: faster is better. That implies, however, that we know what faster means. Faster is relative to some baseline; some measurement that's been taken either on our applications or our competitors. Faster means improving existing performance, which necessaril... (more)

DevOps & SDN | @DevOpsSummit [#DevOps]

Kirk Byers at SDN Central writes frequently on the topic of DevOps as it relates (and applies) to the network and recently introduced a list of seven DevOps principles that are applicable in an article entitled, "DevOps and the Chaos Monkey. " On this list is the notion of reducing variation. This caught my eye because reducing variation is a key goal of Six Sigma and in fact its entire formula is based on measuring the impact of variation in results. The thought is that by measuring deviation from a desired outcome, you can immediately recognize whether changes to a process impro... (more)