Welcome to www.carrefour-medical.com
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.
Got an Offer? How to Evaluate the Company to Ensure It?s the Right Move Being offered a new job is always a great feeling. No matter what type of job it is, the fact that the employer wants you is very satisfying. The inclination to put in your two-week notice and start packing up your desk can be exhilarating. However, be sure that you know what you are getting into before you plunge into a new job. The terms of a job offer should be written out in black and white, literally. Whenever a company offers a job to someone, there should be literature about the position to read. When the offer is made, be sure to spend some time reading over the literature and finding out exactly what the terms and conditions of the job are. Salary, benefits and the terms of employment should all be very clear before you accept the offer. Be sure that you read the fine print. This is especially true from sales jobs. That advertised rate of pay might be what you make with commission. Without the commission you may not have a salary at all. This could be a major issue if your sales do not go well. Salary is one of the most important things to find out about before you take a job. Make sure that what they are offering as base pay is enough for you to live comfortably on. Bonuses can sound really great when employers discuss them with you. However, what you have to do to earn the bonuses may be very difficult. Thus making the bonuses obsolete the majority of the time. Restaurant management is a career path where many times your bonuses are based on the success of your particular restaurant. Not you yourself. That means that when the restaurant is not doing well, there will be no bonuses. The hours you will be working is another issue you will want to tackle before you take the job. Find out exactly what you are expected to work. This could be tricky with salaried positions. Find out what the average amount of hours is that employees spend on the job. Will there be travel? Many jobs post this in their advertisements but others are not so forthcoming with this information. Living out of a suitcase can be ideal for some but if you are not looking forward to having a relationship with your spouse strictly through cell phones and e-mails, you better inquire. If you are not open to travel be sure to find out if travel could be included in your position. The environment at the office could be hard to gauge. However, if you go to an interview and are not greeted in the lobby or see a few scowling employees, chances are, the office environment is a bit hostile. This is a major thing to consider when taking a job. Is the management hiring new personnel in order to replace the existing personnel? If they are, why does the existing personnel need to be replaced? Try to feel out the environment of the office when you are waiting for your interviews to take place. What will your job entail? Will there be times that you are expected to do things that go against your better judgment? Will you be surrounded by a corporate mentality that is concerned only with numbers? Are you going to be able to put your reservations aside and carry out the job that needs to be done? If a job offer is made immediately, you may want to be leery of this position. Try to find out about the turnover rate of this position. There may be a reason why the employer is so ready to offer you the job.
The Makings of a Magazine: Do They Include You? (writing magazine articles) Magazines are everywhere. They are published on nearly every subject you can imagine, in duplicate and triplicate and more. All that a start-up magazine needs is a niche and an audience. While there may be hundreds of cooking magazines out there, a new one could come up if it should cover cooking for your pets. In fact, there may already be such a magazine in existence. The niche is cooking for pets. The audience is those people who want the healthiest foods for their pets and are willing to put the time and effort into making it for them. If you are interested in writing magazine articles, you?ll be sure to find one that is perfectly suited to your interests and abilities as a writer. Because there are so many magazines, it won?t be difficult to find one that you will enjoy becoming a part of. What You Should Know Magazines survive on advertising. The advertisers pay because the content is good enough that readers will invest in the glossy covers again and again. The best way to find a healthy magazine is to look through the racks for thick publications. They will only be full of content if they are full of advertisements. The big magazines can afford to pay their writers more, but they can also afford to pay only the best writers. Even though there is quite a lot of space to fill with content, you may have a hard time getting published in major magazines at first. Smaller magazines do not have quite the readership and so they also do not have quite the advertisement content. The space will be limited and the pay will be lower, but these magazines will be more open to new writing talent nonetheless. The More You Know, the Better When it comes to a writing career, the more you know the better off you will be. It is not hard to figure out that you will have the best chances for publication if you can write on a variety of topics. You should not limit yourself to a small area of expertise. Work to become an expert in every topic you come across. There is no possible way of course to be an expert in every area of human knowledge, but it will help you in writing magazine articles to learn every new piece of information that you can. For example, if you were to send a query to a health and fitness magazine about writing a short piece about general mountain biking tips they may accept it. They may also then request additional information about the pros and cons of using a road bike on mountain trails. If you only know about mountain bikes, you?ll be stuck. If you have worked on broadening your horizons though, you?ll be able to produce the work that the magazine editor requires. Getting On Staff Querying magazines is a way to get published, but if you need a more stable job, you may be interested in getting on staff with a magazine. Writing magazine articles is a talent. If you can consistently bring an editor what he is looking for, you might have a chance. To improve your chances, in addition to writing effectively, it will help to have some significant education behind you. If you are serious about making it to the masthead of your favorite magazine, it?s time to go to school. A degree will help your credibility as a writer and will help you open doors into the magazine publication world. Writing magazine articles takes a special kind of writer. You have to have a feel for what people are interested in reading about. The magazine content will help you understand how to write for a particular magazine and audience. You can also improve your chances of writing accepted articles by improving your knowledge base. Don?t be picky about what you?re willing to learn and you could go very far in the writing business.