Altri libri che potrebbero interessarti

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  Power Distribution Unit (PDU)...

  Dr. Jim Anderson

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  Power Distribution Units (PDUs) – you mean power strips, right? That's what I thought when I was first introduced to this product. Boy oh boy was I wrong! Yes, the PDUs that are manufactured to be sold to the owners and operators of data centers do bear some similarities to the simple power strips that we all use at home. But we are really talking about two very different products here.
  
  What You'll Find Inside:
  POWER DISTRIBUTION UNITS (PDU): WHAT ARE THEY?
  WHY FUSES ARE BAD AND WHAT TO DO ABOUT IT
  WHAT THE WORLD OF FORMULA 1 AUTO RACING CAN TEACH DATA CENTER OPERATORS
  WHY DATA CENTER OPERATORS ARE SWITCHING TO USING HY-MAG
  
  How much money do you think that a data center operator has invested in just one of the racks of computers that sits in his or her data center? There is the cost of the rack, of course, but then there's the cost of each of the servers that has been plugged into that rack, the networking gear, and the power distribution system. Not to mention the overhead of cooling and power distribution to the rack. Very quickly the value of a single rack can reach US$500,000.
  
  Clearly it's in the best interests of the data center operator to know exactly what is going on with their investment. Questions that need to be answered include how much power is being used, if there is currently a fire, are there any hot spots, and whether there are any liquids in the area.
  
  The problem with today's modern data center is that all too often the answers to these questions are not available unless staff are sent out on to the data center floor with tools to make measurements. This means that a lot could go on when nobody was looking.
  
  Today's modern PDUs do so much more than just simply deliver power to the computers that have been plugged into a rack. They provide the "eyes and ears" that data center operators need in order to determine what is happening with their racks. Modern PDUs can support multiple types of sensors that can be used to piggy-back environmental information along with power usage information back to a central control system.
  
  Sophisticated Data Center Infrastructure Management (DCIM) software applications promise to be able to monitor all aspects of a data center. However, they are expensive and require an additional investment to both install and then maintain. The use of PDUs to collect needed data center status information provides a simple and low cost way to automate the monitoring of a modern data center.
  
  This book has been written to provide you with the information that you'll need in order to compare and contrast different types of PDUs. These sophisticated tools can be difficult to tell apart. This book will look at the features that you really needs and explain how you would use then in the real-world environment of a modern data center.
  
  It is my hope that after having read this book, you'll have the knowledge that you'll need to go out and select the type of PDU that best meets the needs of your business. Once you've done this, you can then implement a solution that will allow you to always know what is going on in your data center.

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  Fighting and Preventing Cancer...

  Jocelyn Bluner, Micah Grant

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  Fighting and Preventing Cancer Bundle, 2 in 1 Bundle: The Metabolic Approach to Cancer and Cancer SecretsHearing that you or your loved one has cancer is one of the most terrifying things that can happen to you. According to Cancer.org, 1 in every 6 deaths worldwide was caused by Cancer. This is more than AIDS, Tuberculosis, and Malaria combined. It is the second-leading cause of death worldwide. The numbers are terrifying and I'm sure it makes you want to understand more about cancer, its causes, and what you can do to prevent it. The good news is, at least 42% of these newly diagnosed cancers are avoidable. So it is crucial you learn what you can do to help you and your loved ones avoid cancer.This bundle aims to give you the easiest guide you can have to overcome or prevent cancer. It will teach you the information you need about all the underlying causes of cancer so you will know how to prevent them. One of the audiobooks in this bundle will discuss Colon Cancer specifically. This two-in-one bundle includes the following audiobooks:1. The Metabolic Approach to Cancer: The Ultimate Guide To Fighting Off Cancer, Learn Useful Tips and Effective Ways to Keep Cancer at Bay2. Cancer Secrets: The Complete Health Guide to Colon Cancer, Learn Everything About the Diagnosis and Treatment for this Silent Killer in Order to Protect YourselfGet this Fighting and Preventing Cancer 2 in 1 Bundle today!

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  The Olive Harvest - A Memoir of...

  Carol Drinkwater

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  The story of life on a French olive farm continues with this moving memoir of hard work, hard luck, and waiting for the return of happiness. Carol Drinkwater and her husband, Michel, arrive at their villa in Provence in anticipation of another glorious summer. Unfortunately, they find the farm unkempt and suffering from lack of rainfall. When their gardener, Monsieur Quashia, finally shows up, he cheerfully explains the shed-building project he’s working on as a surprise for them—a surprise that will send their expenses skyrocketing. But there are bigger problems to come than wild boars tearing through fences and other everyday challenges of farming. After a terrifying accident in Monte Carlo and a hospital stay, Michel is barely functional, and Carol soon realizes she must fend for herself. Burdened with problems from a financial reversal to the threat of nearby wildfires, she will experience firsthand the uncertainties that have plagued farmers since the dawn of agriculture—and hold on to hope that in the end, nature will provide. “A storyteller of great economy and deftness.” —The Telegraph

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  The Moon - A Beginner’s Guide to...

  James Harrop

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  “A must-have for anybody interested in lunar photography. If you are a beginner, this is the only lunar observing book you will ever need.” —BBC Sky at Night Magazine 
   
  This is a practical guide aimed at beginners interested in learning about the Moon and how to image our closest satellite neighbor. The book contains the complete photographic process including equipment, settings, capture techniques, stacking and image processing, each of which is vitally important to producing a good image. The information is laid out in a visual and easy-to-understand format so that even the dark art of image processing will not seem quite so daunting. There are many high-quality color photos of the Moon to help you learn about different lunar features and a list of 100 lunar targets identified as a challenge for you to find. All the targets have been captured by the author who provides a brief description of each feature and where it is located on the lunar surface. You will be surprised to discover the fine level of lunar detail which you can see from your back garden and once you start imaging, you will realize there is more to the Moon than meets the eye. 
   
  “Although this book uses the Moon as a starting point, the wisdom it imparts can be applied to many different areas of astrophotography, including how to use planetary imaging preprocessing for crystal-clear images. Whether you’ve never picked up a camera before or you’re looking to get a few tips and tricks, this book is a great addition to your photography library.” —How it Works

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  By staging war games NATO...

  PBS NewsHour

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  The world’s largest live-fire cyber defense exercise is helping NATO members prepare for cyber warfare. Over the last eight years, 22 NATO and EU countries have been practicing the scenario of a cyber attack in Locked Shields, a war game run by the NATO Cooperative Cyber Defence Centre of Excellence. NewsHour Weekend Special Correspondent Christopher Livesay reports.

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  The Martians - Evidence of Life...

  Nick Redfern

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  “This provocative and exciting book . . . makes a startling case for there being life on Mars.” —Whitley Strieber, #1 New York Times–bestselling author of Communion 
   
  The Martians is an in-depth study of the theory that Mars was once a world that teemed with life. Perhaps, even, life not too dissimilar to ours. Incredibly, the Martians may still be there. Alive. The questions that this book asks and answers include the following: 
   
  • What kind of society did the Martians have? 
   
  • What caused their world to become harsh and desert-like? 
   
  • Did global warming or nuclear war ensure the extinction of the Martians? 
   
  • Are Martian artifacts strewn about the surface, just waiting to be found by the likes of NASA? 
   
  • Has NASA already found such evidence, but chosen to withhold such monumental finds from the public and the media? 
   
  • Could some form of the Martians still exist, deeply below the surface of the planet, in secure installations that allow them to ensure their civilization continues? 
   
  • What do we know about the Martian environment, its atmosphere, and its landscape? 
   
  The Martians explores the CIA’s top-secret search for the Martians, multiple photos of strange anomalies, and the latest revelations about the environment and water on Mars. And most tantalizing of all: Did an ailing Martian race come to Earth in past eons and were they confused with gods? The questions concerning life on Mars—then and now—are many. The answers are astounding.

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