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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.
Tackling those Second and Third Interviews to Land that Job If you make it to a second or third interview, you are a serious candidate for the job. The key now is to narrow down the candidates. This moment is when you will determine if you get called with a job offer or receive a notice of rejection in the mail. Arm yourself with the proper tools and make an even bigger splash on the second and third interviews than you did at the first one. The first thing to remember when you are going into a second or third interview is what you said in the first interview. The interviewer will have notes from the first interview so you need to be ready to follow up on things you said initially. This is why it is important to be honest and realistic in the first interview. If you work hard to impress the interviewer and end up lying, you may not be able to recall they lies you told in the first interview. Eliminate this from being the case by telling the truth the first time around. Be armed with questions about the position and the company in generally. Search through information online about the company and get a feel for day-to-day operations. Type in the name of the company in Wikipedia and see what comes up. Many corporations are listed in this massive Internet encyclopedia and information about the company can be found there. Find out as much as you can about the company you are interviewing with. If you are interviewing with the same person the second or third time around, ask about their experience with the company. Questions like, “What is a typical day for you on the job?” or “How long have you been employed with the company?” can help to build a relationship with the interviewer. It also signals that you are comfortable with the interviewer. Not to mention, who does not like to talk about themselves? This is a great way to keep the interview moving on a positive note. Have plenty of questions about the position. Show that you have researched the job and are very confident that you are going to get it. The more inquiries you have about the position the more serious and interested you will seem. By the second or third interview, you will probably meet a number of different people. Shake hands firmly and look them in the eye when talking to them. If you are given a tour of the facilities, ask questions. Do not just let your tour guide point out areas without you taking an interest in them. Although it may seem like second and third interviews should be easier, do not let your guard down. Stay on your toes and be even more prepared than you were for the first interview. As the interview process moves on you will probably be meeting with the person that will be your direct boss or the director. Interviews with these figures may be much more difficult than the first interview which was probably with a human resource person. Be aware of this fact and have answers for those tough questions like, “What makes you the right candidate for this job?” Also be prepared for hypothetic situations that may take some spur of the moment problem solving. No matter what number interview you are on, there are some standard rules to follow. Take copies of your resume to your second and third interviews. Even though the interviewer may have a copy of your resume, you want to be armed with extras just in case there are other people in the department that would like copies. If you meet with different managers they may all ask for copies of your resume. Yes, they have copies, but they want to see if you are prepared. The Convenience of Online Writing Degree Programs (online writing degree programs) Online writing degree programs are not readily available, but they are growing in popularity. There are many traditional and online schools that offer online degree programs to busy writers. The online degree programs offer courses that teach students the basics of writing, including paragraph structure, theme writing, descriptive writing, tech writing, and grammar. Usually in writing degree programs, writers are given many assignments within one week, which range from analyzing the work of others to composing their own short stories and essays. The courses offered in an online writing degree program are much like the ones offered in traditional programs, and students will begin their program by taking beginner’s courses and eventually work their way up to the more advanced. The beginner’s course teaches the basics of writing, but after taking them, students will be able to take more specific courses, such as creative writing and tech writing. The online programs give students more freedom, but the workload is almost the same and students will have more and more writing assignments as they move further into the degree program. The online writing degree programs offer bachelor degrees as well as masters’ and there are many schools that offer these online programs. Chatham College is one school that offers online writing degree programs. Chatham online is the online division of Chatham College, which offers online masters’ degree programs for writers. The writing degree program offered by Chatham online offer 7-week courses and it has no residency requirement. The programs give students the freedom to study anytime or anywhere an Internet connection is available. Chatham online offers many degree options for its students, including the Master of Professional Writing degree, which gives students training to become technical writers, content developers for the web, advertising copywriters, and public relations specialist. It also offers the Graduate Certificate-Non-fiction Writing. This program gives students the opportunity to use their nonfiction writing skills and focus one subject, which include nature, environmental, or landscape writing. Students are given many writing assignments and attend many online writing workshops where their work is presented and critiqued. Once the program is finished writers will have a portfolio of their work that is of publishable quality. Another unique program is the Graduate Certificate-Writing for Children and Adolescents. The Certificate in Writing for Children and Adolescents provides students the chance to write fiction and nonfiction for children and adolescents. There are also many other colleges that offer online writing degree programs including Burlington College. Burlington College offers a Bachelor of Arts in Writing and Literature through an online program. However, this school does require a four-day residency in Burlington, Vermont at the beginning of each semester. Goddard College is also a school that offers a master’s program online. The college offers a Master of Fine Arts in Creative Writing degree through their online program. In this program, students are able to study poetry, fiction writing, creative nonfiction writing, and memoir, play writing, and screen writing. A short residency is also required for the program at Goddard College. The University of Denver is another school that offers online writing degree programs. It offers the Certificate of Advanced Study in Creative Writing. The program includes a range of courses on content and writing processes for fiction, nonfiction, poetry, and other areas of writing. There are many other colleges and universities that offer online writing degree programs including Goucher College, Lesley University, University of Central Florida, and Washington State University. Like all degrees, online writing degrees are not simple to obtain, but they can provide convenience and knowledge, which helps them advance as a writer, or develop writing skills to that will help them in the future. |