networking-info

Clear/Free/Remove Cache memory from Linux Server ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Please use belwo command to clear Cache memory from Linux Server free -m echo 1 > /proc/sys/vm/drop_caches ======= eg : BEFORE : root@lnx [~]# free -m total used free shared buffers cached Mem: 12001 11614 386 0 2026 6996 -/+ buffers/cache: 2592 9409 Swap: 1907 0 1907 root@lnx [~]# echo 1 > /proc/sys/vm/drop_caches AFTER : root@lnx [~]# free -m total used free shared buffers cached Mem: 12001 2796 9205 0 5 390 -/+ buffers/cache: 2401 9600 Swap: 1907 0 1907 =========

"Recently, I predicted that in 2013, cloud computing will provide the biggest disruption information technology has experienced in 25 years. These impacts extend to the $128 billion data center industry, which will never be the same as the traditional business model is disrupted, and new rules for success are written." This is how I started my most recent article for SC Magazine In it, I address the how the datacenter marketplace is bifrucating and how operators need to rethink their current business model in order to survive. Data centers that do not evolve – quickly – will face plummeting profit margins as more and more information moves to the cloud. Please read the article ( http://www.scmagazine.com/the-cloud-will-shake-markets/article/276463/ ) and comment. The industry is currently undergoing an inflexion which will require agressive changes by many. ( Thank you. If you enjoyed this article , get free updates by email or RSS - © Copyright Kevin L. Jackson 2012 ) -...

Many enterprise software vendors sympathize. "We know it's a bad experience" or "We will fix the usability." One of the reasons the software is not usable is because the makers never had any empathy for the end users who would use it. In many cases the makers didn't even know who their end users were; they only knew who would buy the software. As far as enterprise software is concerned people who write checks don't use the software and people who use software don't write checks and have a little or no influence in what gets bought. Though the dynamics are now changing. Usability is the last step; it's about making software usable for the tasks that it is designed for. It's not useful at all when the software is designed to solve a wrong problem. Perfectly usable software could be completely useless. It's the job of a product manager, designer, and a developer to assess the end user needs—have empathy for them—and then design software that...

Two years back I wrote that the primary challenge with NoSQL is that it's not SQL . SQL has played a huge rule in making relational databases popular for the last forty years or so. Whenever the developers wanted to design an(y) application they put an RDBMS underneath and used SQL from all possible layers. Over a period of time, the RDBMS grew in functions and features such as binary storage, faster access, clusters, sophisticated access control etc. and the applications reaped these benefits. The traditional RDBMS became a non-fit for cloud-scale applications that fundamentally required scale at whole different level. Traditional RDBMS could not support this scale and even if they could it became prohibitively expensive for the developers to use it. Traditional RDBMS also became too restrictive due to their strict upfront schema requirements that are not suitable for modern large scale consumer web and mobile applications. Due to these two primary reasons and a lot more other rea...

While I ponder on 2012 and plan for 2013, I always keep the regret minimization framework (watch the short video clip above) in back of my mind. Of course luck plays a huge part in people's success, but we owe it a lot to Jeff Bezos. We probably wouldn't have seen Amazon.com and we most certainly would not have seen EC2. No one predicted anything about Amazon being a key cloud player. A few years back Twitter didn't exist and Facebook was limited to college kids. I do make plans but I have stopped predicting since I will most certainly get it wrong . "Plans are useless, but planning is indispensable." - Dwight Eisenhower I use regret minimization framework not only as a long-term thinking tool but also to make decisions in short-term. It helps me assess, prioritize, and focus on right opportunities. While long-term thinking is a good thing, I strongly believe in setting short term goals, meeting them, and more importantly cherishing them. If you're not minimiz...

CHANTILLY, Va., Dec. 20, 2012 — NJVC ® , an information technology solutions provider headquartered in northern Virginia and supplier of Cloudcuity™ AppDeployer , and Virtual Global , a provider of cloud-enabled enterprise IT solutions based in northern Virginia, have teamed up to offer the top 10 transformational impacts of the cloud in 2013—all of which will transform business and government in the biggest disruption IT has experienced in 25 years.   "The disruptive impact of cloud is uprooting old industries and making way for new ,” said Cary Landis , NJVC senior architect, Cloudcuity AppDeployer and Virtual Global CEO. Whereas change is not new, the rate of change may be accelerating faster than many imagined. “In the coming year, the cloud's impact on business and government strategies will continue to accelerate, and it will be the biggest driver behind major IT decisions. This, in turn, will cause the biggest disruption to the IT industry in the past 25 yea...

During his recent visit to the office of 37 Signals, Jeff Bezos said, "to be consistently objective, one has to be objectively inconsistent." I find this perspective very refreshing that is applicable to all things and all disciplines in life beyond just product design. As a product designer you need to have a series of point of views (POV) that would be inconsistent when seen together but each POV at any given time will be consistently objective. This is what design thinking, especially prototyping is all about. It shifts a subjective conversation between people to an objective conversation about a design artifact. As I have blogged before I see data scientists as design thinkers . Most data scientists that I know of have knowledge-curse. I would like them to be  consistently objective by going through the journey of analyzing data without any pre-conceived bias. The knowledge-curse makes people commit more mistakes . It also makes them defend their POV instead of looking f...