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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.
A Writer’s Best Friend: The Job of an Editor (editing) Are you irritated by typos and spelling errors in professional documents? Are you able to help your friends make their writing error free? You may be a good candidate for editing. The world is incredibly dependent on writers and the craft of writing. It is how people communicate with each other most often. As the internet writing forms do not require people to hold to correct grammar, spelling or professional style, most writers are losing their capabilities to complete a professional document or book without help. Writers have always needed the help of editors. Even when there was strict attention to correct writing, editors could come and catch missed errors as well as mistakes in content. Editors are still needed today. Read on to find out more about what can be involved in a life of editing. Who are the Editors? Editors are those people with the ability to read a document and guide a writer to make it the best piece of writing that it can be. Editors work in newspapers, and magazines. They also work for publishing companies and in student resource centers. Editors generally have some education that leads them to the ability to help writers. They probably have a degree in language as well as training with style manuals. What is the Job? An editing job involves taking a piece of writing and conforming it to some particular set of standards. Style manuals are often the standard used. Different publications will choose a style and then ask the editors to make all of the writing that comes out to be consistent to that style. Editing is not only concerned with objective corrections like spelling and grammar though. An editor must also read for clarity, consistency and voice. If a writer claims one thing in one point of their piece and seems to contradict that point in another part, it is the editor’s job to catch the mistake and work with the writer to fix the inconsistency. If the writer is speaking authoritatively in the beginning of a piece and then becomes apologetic later, it is the editor’s job to make the tone match. Editors help with sentence construction, word choice and content order. How to Find Editing Jobs If any of the above job description sounds interesting and even exciting to you, you just may have found your ideal job calling. Before you start looking for editing jobs, you should test your skills. There are editing tests online. Feel free to use a style manual as well as your intuition as you correct the sentences and word choice in the different test questions. If you do not pass the test, you should probably spend a little more time reading a style manual and a basic grammar guide. Once you can ace an editing test, it’s time to look for a job. Be sure to include any experience you may have had. Include any editing of any kind you have ever done. Peer editing in school is appropriate experience to mention. Also be sure to list any style you are able to edit to. Examples are AP, Chicago, MLA, and so on. If you get an interview, be prepared to take another editing test, with the help of your manual. The test will likely be timed. Editing is a rewarding career. It involves helping writers to do their very best writing geared to their particular audience. While it can be stressful because of deadlines and workload, at the end of the day you will know that you have made the world of the written word a little cleaner and much more effective. Editors are an essential part of making the written word what it is today. Copyright Law Plagiarism Plagiarism Is Simply Unethical Anyone who is a writer is concerned with plagiarism. Copyright Plagiarism Laws protects copyright holders from having their works plagiarized. Many people think it is ironic that the word plagiarism derives from “kidnapper” in Latin. However, it is true. If a person uses another person’s words without permission, they have indeed stolen or kidnapped something that was owned by another and is in violation of copyright law. Plagiarism is a very bad word in the writing world. Crediting the author of the work will not keep someone immune from being in violation of copyright law. Plagiarism is plagiarism, even if the author is cited if the author did not give permission for the work to be used. One of the most common areas that copyright law plagiarism is violated is in the academic world. Many students will copy and paste the information they need for their research papers and essays straight off the Internet and turn it in to their professors. However, this type of cheating is easily detected now with special programs that professors can use. Plagiarism is unethical, not only in the writing world, but in the academic world, as well. Did you know that you could plagiarism a work but not be in violation of the copyright? Likewise, you can be in violation of a copyright and not have been plagiarizing. It is really not that hard to understand. Let’s say you are using Abraham Lincoln’s exact words in a paper and you did not cite him as the source or give him credit. Well, Lincoln’s words aren’t copyrighted because they are in the public domain. But, you did plagiarize because you tried to pass off his words as your own. Alternatively, if you use a picture in a book and you did not gain permission to use the book, you have violated copyright law because you did not source the artist and you did not get permission from the artist to use the picture. If you are in school, the best way you can get around committing plagiarism is to simply list your sources. If you use someone’s word, list it in an endnote or in a footnote. List the resource you found it in the bibliography. Another way around copyright law plagiarism violations is to take notes when you are reading. Take notes in your own words and put the resource away. Write your paper from your own words. No one wants to be singled out for plagiarism, especially a student who is concerned about their reputation at school and writers who need to keep their credibility in good standing. With today’s technological advances, it is not too hard to pinpoint plagiarized work. Even webmasters who run websites are on to the plagiarism crowd. They can run their entire sites through a special program to see if their content has been stolen and duplicated elsewhere on the Internet. If you are dealing in the written word, either academically or as a profession, it is a good idea that you only use your own words. It was probably easier to get away with plagiarism 100 years ago, but it is not that easy today. The changes are very high that if you are caught violating copyright law plagiarism laws you will be caught. Not only is it embarrassing, but it can cost you a bundle in a lawsuit. |