The idea of a risk intelligence quotient was put forth by the behavioral scientist Dylan Evans. He postulated that everyone has a capacity for determining probability based on the ability to internalize and mull information gathered from various sources. A quote from Dylan is: ‘Risk intelligence is not about solving probability puzzles; it is about [...]
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The cost of an outage
Recently there was an article that discussed the measurable and unmeasurable costs of downtime. To quote from the article: Measurable Costs of Downtime Once you’ve understood the scope of the impact, you can quantify the actual dollar value of losses associated with downtime. In general, measurable downtime costs fall into the following areas: Direct and indirect [...]
The continual search for creative perspectives in infrastructure design
I like to find relevance in the obscure. To find parallels in topics that diverged long ago, yet have great similarities. In this instance I am talking about the history of structural engineering and material sciences on one side and designing scalable IT infrastructures on the other. The foundations are very similar if viewed in [...]
Transparency in the site failure (of Jan 31st 2017 ) and post-mortem for GitLab
On January 31st 2017, the GitLab site had to be taken down for emergency maintenance. Something bad had happened due to a number of issues occurring and the planned recovery process was thrown out the window because, in their own words: “out of five backup/replication techniques deployed none are working reliably or set up in the [...]
Site Reliability Engineering and embracing risk
Over the years, Google has had many different services come into existence. Some worked with the market, others did not. One thing that you could always count on though, was the reliability of any services they did have. Gmail for example, has over 1 Billion active users and has had 300% growth year over year [...]
Tech Talks
vBrownBag VMworld 2017 US John Arrasjid (VCDX-001) and Mark Gabryjelski (VCDX-023) will introduce the newest authors in their IT Architect Series. Designing Risk in IT Infrastructure by Daemon Behr, and The Journey by Melissa a Palmer share what you will find in these new books for existing and aspiring IT architects working with physical, virtual, [...]
Book release and signing at VMworld US 2017
The second book in the IT Architect Series - Designing Risk in IT Infrastructure, will be available at VMworld US 2017 in Las Vegas. However, the book is already available online through the designingrisk.com website. In the coming weeks, it will also be available via Amazon, Apple iBooks, Kindle, Lulu Publishing and just about every [...]
Probability and assumptions – The monty hall problem
Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say A, and the host, who knows what’s behind the doors, opens another door, say C, which has a goat. He then says to you, “Do you want to [...]