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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.
Get Noticed at your Job by Doing it with Flair Doing your job with “37 pieces of flair” may have entered the pop culture vernacular through the famous movie about life working an office, Office Space, but there may just be something to it. You might not need 37 pieces of flair, but doing your job with a little bit of flair and a lot of hard work is a great way to get noticed in the office and to move on to bigger and better things. How do you go about doing your job with flair? The first way to make sure you are doing your job with distinction doesn’t involve much flair at all – it simply involves doing your job and doing it well. Know exactly what your responsibilities are and attend to them every day. Don’t let any of the things that come under your job description fall by the wayside because you think they are unimportant. If you are unsure exactly what all of your responsibilities are, ask your boss for a meeting and discuss your job description with them. You will get noticed simply for your desire to make sure you are covering all of your bases and not letting any of your responsibilities fall by the wayside. Another way to do your job with flair is to add to the good morale in the office. Everyone has at least one person in the office that is like a black cloud hanging in the air. Gloom, doom and pessimism don’t really have a place in the office. Even if you feel like you are heading for a fall with the way a certain project is coming together or because someone on the team is not pulling their weight, look for solutions instead of standing around and complaining about it. When your attitude can help people stay on track with their work and not dread coming into the office every day, you are bound to get noticed. If you really want to add some flair to your work performance, learn how to manage your time and avoid procrastination. Time management is one of the biggest problems all employees face, and when you don’t manage your time efficiently, you are not being as productive as possible for your boss, which never wins you any fans among the management team. If you find yourself always rushing through your work at the last minute trying to meet your deadline, try keeping a journal of all of your activities at work for a few days. When you see how much time you spending doing things like talking with co-workers by the water cooler and surfing the net, you might see ways you can improve your work habits, so you can get things done well before the deadline is pressing down on you. Increasing your productivity by managing your time is a surefire way to earn some praise from the people over your head. Another way to add flair to your work performance is by being a team player. It can be tempting to thing that to have flair you have to go out on a limb and try to do everything yourself, but that is not the case. Employers don’t like to see an employee trying to hog credit for things that everyone has worked on together or trying to one up everyone else on the staff. When you work together with the team, you show your employer that your interests are with making the company a success and not trying to advance you own personal agenda. If your employer understands that you see the bigger picture of making the company succeed, you are sure to get noticed and rewarded. Assistance on Filling Out those Online Forms for the Free Stuff So, you’ve found a great freebie online, or a free trial of some service you have been wondering about, but the form you have to fill out has left you scratching your head. Sometimes the paperwork involved in getting some free stuff can seem a bit like applying for a mortgage or filling out your life insurance policy, and in fact, many people decide the freebie isn’t worth it after all when they’re facing down an intimidating form to fill out. The good news is that you don’t have to miss out on the free stuff just because the form leaves you a little perplexed. This guide will walk you through filling out these online applications, even if this is your first trip around the Internet. Once you get the hang of things, you’ll be filling out these forms in no time at all. First things first: once you have the form open on the screen in front of you, you have to move your mouse so that the cursor sits in the very first empty space on the form, and then click the mouse once. Some forms will automatically place your cursor there when you open them, but if you are not sure, moving the mouse there and clicking won’t hurt anything at all. All you have to do now is start typing, filling in the information they ask for in that field. Filling out the form the entire form is merely a repetition of this process. Of course, you have to be able to move between the fields easily so you can fill in the rest of the form. On some online forms, the cursor will move automatically when you have finished filling in a field, which makes life easy on you, but others do not. To manually move between fields, all you have to do is either hit the “tab” key on your keyboard or use your mouse to move the cursor to the next field, just like you did to start typing in the first field. Hitting “enter” may seem like a natural thing to do, and while it can work on some forms, other forms will submit themselves when you hit enter, meaning you will have submitted a blank form. It is best to stick to “tab” or your mouse to be on the safe side. This technique should allow you to navigate a freebie form fairly easily. There are a few other things you may see on a form that you have to know how to handle. You may be asked to “check” a box or indicate in a little circle (called a radio button) that you accept the company’s privacy policy or some other thing. To do this, all you have to do is move your cursor over the box or circle and click – the check or the dot will then appear. This can also be handy when forms ask for a billing address and a shipping address - if they are the same, you can tick a box stating so and avoid having to type the same thing twice. If a form has several pages, be careful to save your changes for every page as you move along. Usually there will be a button to click at the bottom of the page that allows you to save the work you have done. Especially long forms usually have some kind of side navigation that lets you skip around from section to section instead of moving through the form systematically – this can be helpful if you need to find some info for one section, but want to take care of all of the other work first. Most forms are reasonably user friendly and contain info to walk you through the process. If you get stuck, look for a help icon on the page – this info should clear up any questions you may have. |