Cisco recently announced the Nexus 7009 chassis expanding the Nexus 7000 family to 3 chassis. To refresh your memory on the Nexus 7000 family, here’s a quick at a glance comparison.
I often get asked, why Cisco introduced a 9 slot chassis when we already have a 10 slot chassis. The simple answer is – customers asked for a smaller form factor Nexus 7000 switch that delivers the high performance and resiliency that the Nexus 7000 family is known for.
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Tags: Cisco, data center, nexus, Nexus 7000, nexus 7009, Unified Fabric
As discussed in my previous post, application developers and data analysts are demanding fast access to ever larger data sets so they can not only reduce or even eliminate sampling errors in their queries (query the entire raw data set!), but they can also begin to ask new questions that were either not conceivable or not practical using traditional software and infrastructure. Hadoop emerged in this data arms race as a favored alternative to the RDBMS and SAN/NAS storage model. In this second half of the post, I’ll discuss how Hadoop was specifically designed to address these limitations.
Hadoop’s origins derive from two seminal Google white papers from 2003-4, the first describing the Google Filesystem (GFS) for persistent, massively scalable, reliable storage and the second the MapReduce framework for distributed data processing, both of which Google used to ingest and crunch the vast amounts of web data needed to provide timely and relevant search results. These papers laid the groundwork for Apache Hadoop’s implementation of MapReduce running on top of the Hadoop Filesystem (HDFS). Hadoop gained an early, dedicated following from companies like Yahoo!, Facebook, and Twitter, and has since found its way into enterprises of all types due to its unconventional approach to data and distributed computing. Hadoop tackles the problems discussed in Part 1 in the following ways:
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Tags: Big Data, Cisco, data center, Hadoop, NoSQL
Put tablets, laptops, netbooks, among other devices, in the hands of grade- school students, and it’s only minutes before they’re innovating, creating, and communicating.
From the time they’re aware of the world around them, today’s children see and use technology. I’ve written before about the ubiquity of technology in the classrooms of our youngest learners, and as noted in a recent Education Week article, schools continue to experiment with available technology to determine the right tools to maximize their students’ learning. Read More »
Tags: Cisco, edchat, edtech, project based learning, TelePresence, video conferencing, videoconferencing, virtual fieldtrips
Data Center Deconstructed reader Eric Chou writes: Good to see the knowledge sharing Doug. I read your book on building a Data Center a few years back and it was informative on the physical infrastructure piece. I think it would also be informative if you can share some of the experiences or creative ways to increase efficiency when there are macro environment limitations. I mean, outside of a select few companies (Google, Amazon, Facebook, Amazon), most companies are not able to build a Data Center from the ground up, buy the cheapest land near a lake or negotiate a jaw dropping electricity rate with the local government. What can we do when we need to house 1/2 floor of servers in a 80-year old peering exchange that assumes 2 KVA per rack when designed?
That’s a great question. As I often tell other Data Center managers, we can make any upgrades to our server environments we want to as long as there’s no downtime or cost. I’m joking with that comment – mostly – but it is a common scenario. Fortunately, there are several things that can be done in a legacy Data Center to improve its efficiency and reduce the likelihood of downtime without spending much money or disrupting the environment.
Here, then, are eight simple rules for improving a Data Center.
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Tags: 8 simple rules, Cisco, coc-data-center, color coding, data center, datacenterdeconstructed, energy efficiency, idle hardware, labeling, operational improvements, virtualization
It does not matter whether you are in Guildford or in Nairobi, it seems that it is never hard to get 10 and 11 year-old girls to chat. Recently I met about 30 of them over TelePresence, (Cisco’s high definition video conferencing). The aim of the meeting was to inspire them to consider careers in IT in the future and was designed to be a question and answer session. Having introduced myself and explained how I got into the IT industry many moons ago, the floor was all theirs.
Questions came flooding at me and the pressure was on to make a good impression. Despite the distance between them, I was immediately struck by the similarities of the girls – all in their smart school uniform, all smiling at me and a few girls gave me a little wave. Their respective teachers introduced the schools and that was where the similarity ended. The girls in Nairobi were from a deprived slum area whilst the girls from Guildford were mainly middle class. The questions they asked however were very different. Yes I was asked the usual questions such as “How did I get into IT?” “Do I like my job?” “What do I do?” etc . However the girls in Nairobi wanted to know how I got work, how long did it take me to get there, how many hours did I work and then they asked me probably the most poignant question of the session. “Does your technology help people in drug rehabilitation centres?” Wow, that question was so telling on many levels! By the way I didn’t know the answer but was able to explain how our technology Healthpresence is enabling doctors and hospitals to see more patients remotely and is extending the reach of healthcare.. The question was also in stark contrast from one of the Guildford girls who wanted to know what was the colour of my toothbrush! The last question asked was “ What was my most prized possession?” No prizes for guessing which school asked this one but I hope both schools took a few minutes to think about my response. I said “ it is not a possession as such but my answer is my HEALTH”.
I then left the meeting so the girls could get to know each other better. I felt very privileged to have taken part and very humbled by the girls in Nairobi. I cannot really imagine what their lives are like on a daily basis or whether or not I inspired them but I hope they left the session with something constructive to talk about! The meeting has certainly left it’s footprint on me, more so than I expected. The children were so similar in their openness, friendliness and willingness to participate. However the use of the Cisco office would have sheltered the girls from Guildford from the harsh reality their new friends from Nairobi face each day and would have made it difficult for them to really comprehend their differences. Hopefully this would have been a good thing – the real understanding that we are not that different from each other after all!
Tags: Cisco, Guilford, health, Inclusion and Diversity, Kenya, Nairobi, Schools, TelePresence