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Web Hosting - Redundancy and Failover
Among the more useful innovations in computing, actually invented decades ago, are the twin ideas of redundancy and failover. These fancy words name very common sense concepts. When one computer (or part) fails, switch to another. Doing that seamlessly and quickly versus slowly with disruption defines one difference between good hosting and bad.
Network redundancy is the most widely used example. The Internet is just that, an inter-connected set of networks. Between and within networks are paths that make possible page requests, file transfers and data movement from one spot (called a 'node') to the next. If you have two or more paths between a user's computer and the server, one becoming unavailable is not much of a problem. Closing one street is not so bad, if you can drive down another just as easily.
Of course, there's the catch: 'just as easily'. When one path fails, the total load (the amount of data requested and by how many within what time frame) doesn't change. Now the same number of 'cars' are using fewer 'roads'. That can lead to traffic jams.
A very different, but related, phenomenon occurs when there suddenly become more 'cars', as happens in a massively widespread virus attack, for example. Then, a large number of useless and destructive programs are running around flooding the network. Making the situation worse, at a certain point, parts of the networks may shut down to prevent further spread, producing more 'cars' on now-fewer 'roads'.
A related form of redundancy and failover can be carried out with servers, which are in essence the 'end-nodes' of a network path.
Servers can fail because of a hard drive failure, motherboard overheating, memory malfunction, operating system bug, web server software overload or any of a hundred other causes. Whatever the cause, when two or more servers are configured so that another can take up the slack from one that's failed, that is redundancy.
That is more difficult to achieve than network redundancy, but it is still very common. Not as common as it should be, since many times a failed server is just re-booted or replaced or repaired with another piece of hardware. But, more sophisticated web hosting companies will have such redundancy in place.
And that's one lesson for anyone considering which web hosting company may offer superior service over another (similarly priced) company. Look at which company can offer competent assistance when things fail, as they always do sooner or later.
One company may have a habit of simply re-booting. Others may have redundant disk arrays. Hardware containing multiple disk drives to which the server has access allows for one or more drives to fail without bringing the system down. The failed drive is replaced and no one but the administrator is even aware there was a problem.
Still other companies may have still more sophisticated systems in place. Failover servers that take up the load of a crashed computer, without the end-user seeing anything are possible. In fact, in better installations, they're the norm. When they're in place, the user has at most only to refresh his or her browser and, bingo, everything is fine.
The more a web site owner knows about redundancy and failover, the better he or she can understand why things go wrong, and what options are available when they do. That knowledge can lead to better choices for a better web site experience.
To Enter or Not to Enter Writing Contests (writing contests) If you are a freelance writer, it is because you love to write. Why not put those abilities to use and enter a writing contest? You have nothing to loose and a lot to gain. You can find writing contests by simply searching the Internet. Writing groups and message boards may also have listing for these contests. No matter what you writing genre maybe poetry, fiction, non fiction, there is a contest out there for you. Read about them and choose which ones are right for you. It is not necessarily about winning or loosing but about the experience and knowledge that you gain to get there. Whether you win or not there are still valuable things that can be learned or gained by entering into contests. Entering writing contests will help you hone the skills that you have. Try something new, you may choose to write in a niche that you normally wouldn’t. You get constructive criticism from someone new. Someone that doesn’t have to worry about hurting your feelings and that is unbiased can be a wonderful asset to your career. The feedback you receive can be invaluable to you. It will get your name out there and give you a place to showcase your work. Depending on how good your story, if you make it to the next round your writings could be in front of editors and agents. This feedback and criticism is even more important than the first. Do not your eggs all in one basket. Enter a couple contests to get multiple feedback sources. Not every editor or agent is going to agree. By entering multiple contests and find common points about your writing that need perfecting you will be able to concentrate on a general consensus about your abilities. There are some downsides to entering writing contests, too. Chances are that a simple contest is not going to launch your career into star status. Do your research just as if you were going to write an article about contests. For many contests you give up your rights to your entry whether it wins or not. You need to decide whether or not you are willing to give up all rights to your story. If you win it is not a big deal, but if you loose your giving your work away. Are you willing to do this? Research the contest. You can search the Internet for reports or opinions on contests run by the company. You can find valuable information on if the contest is legitimate, if entering has had any effect of previous entrant’s careers, and if it is really worth it in the long run. The bigger and well-established companies will give credibility to your work if you win. But the bigger and more well know the companies are will also bring in tougher competition with well know authors. Some companies offer contests as a disguise. Yes they will give away prizes and declare winners but their main goal with the contest is advertising. It can be in the form of offering you to buy obscure book featuring your contest submission. Sometimes it is an editing company that offers a discount for its services or a company that will offer you discounts on writing classes. A writing contest is just a possible stepping stone. Whether it helps you or not is the unknown, but it definitely won’t hurt you. It may help you reach the next level of your career. You and only you will be able to make the decision on whether or not writing contests are a good move for your career. The History of Writing Tools (history of writing tools) Writing tools are essential to written communication. A person is not able to write without the proper writing tools. However, many people don’t realize that writing tools did not just pop into existence; writing tools have a long history. Writing tools have helped societies write their history and bring civilizations to life. The history of writing tools begins with the cave man that invented the sharpened-stone, which was later developed into the first writing tool. Cave men used these instruments to scratch pictures onto the walls of cave dwellings. The drawings were said to represent events in the daily life of the cave men, such as the planting of crops and hunting victories. Clay was later discovered, which made portable records possible, and many merchants of the time used clay token with pictographs to record the quantities of materials being traded and shipped. The Greeks developed the earliest form of pen and paper. They used the writing stylus, which could be made of metal, bone, or ivory, to make marks on wax-coated tablets. The tablets used by the Greeks were made in hinged pairs that were closed to protect the scribe’s notes. Cadmus was a Greek scholar who seemingly invented the written letter, which is a text message on paper sent from one individual to another. The written letter proved to be a major event in the history of writing tools, and was the starting point for the development of ink. “Indian Ink” was developed by the ancient Chinese society, and perfected for writing. The ink was originally designed for blacking the surfaces of raised stone-carved hieroglyphics, but was later used for writing. This early ink was made of a mixture of soot from pine smoke and lamp oil mixed with the gelatin of donkey skin and musk. By the year 1200 B.C. the ink had become common as a writing tool. Inks were also developed by other cultures, who used natural dyes and colors derived from berries, plants, and minerals to create them. The different colors of inks had ritual meanings attached to each color in early writings. In the history of writing tools the development of ink paralleled the introduction of paper. Early cultures such as the Egyptians, Romans, Greeks, and Hebrews used papyrus and parchment paper to write on. Romans invented a reed-pen for parchment and ink, from the hollow tubular-stems of marsh grass and the jointed bamboo plant. The bamboo stems were converted into writing tools that resemble the fountain pen. The plant was cut at one end into the form of a pen point, and ink filled the stem, by squeezing the reed, writers could force the ink from the point and write on parchment paper. The early forms of ink and paper were great developments in the history writing tools, but were often unstable. A stable form of ink was developed in 400 A.D., which was a composite of iron-salts, nutgalls, and gum. The ink was seen as having a bluish-black hue when applied to paper, but quickly becoming a darker black color, and fading after years and appearing as a dull brown color. The Chinese created a wood-fiber paper in 105 A.D., but it was not known to other cultures until 700 A.D. when the Japanese learned the secret. Eventually, the wood-fiber paper was brought to Spain in 711 A.D., but was not widely used in Europe, as most European societies did not use paper until the 14th century. The quill pen is also a major invention in the history of writing tools. The quill pen was introduced to the world in 700 A.D. The pen was made of bird feathers, and the strongest quills were typically taken from live birds from the outer left wing feathers. After the development of the quill pen, plant fiber paper became the popular medium for writing. Then another invention changed the history of writing tools; Johannes Gutenberg invented the printing press. This invention has led to various other developments in printing and writing tools. Writing tools are essential to writing, and without the development we would not be able to show others our ideas and thoughts. |