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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.
Web Hosting - Why Backups Are Essential One thing most web site owners have little time for is... anything! Anything other than focusing on their site content and the business or service it supports and the information it provides, that is. That means that administration often suffers, as it frequently must. There's only so much time in the day. But the one thing that you should never let slide are backups. They are like insurance. You rarely need it (you hope), but when you do you need it very badly. Performing regular backups - and testing them - doesn't have to be a nightmare. A little bit of forethought and effort and they can be automated to a high degree. And, they should be tested from time to time. Even when a backup appears to have gone without a hitch, the only way to know whether it's of any value is to attempt to restore the information. If it can't be restored, the backup is worthless. Even when the web hosting company provides the service, there is still some planning involved for the site owner. Hosting companies often rely on one or both of two methods. They backup everything (called a full backup), then backup anything which has changed since the last full backup (called an incremental backup). Of special interest are any configuration files that have been tailored. If you've modified the default installation of a software package, you want to be able to recapture or reproduce those changes without starting from scratch. Network configuration files, modifications to basic HTML files, CSS style sheets and others fall into the same category. If you have XML files, databases, spreadsheets or other files that carry product or subscriber information - about items purchased, for example, or people who signed up for a newsletter - those should get special attention, too. That's the lifeblood of your business or service. Lose them and you must start over. That can break your site permanently. It should go without saying that all HTML and related web site files that comprise visible pages should be backed up regularly. It isn't necessary to record every trivial change, but you can tailor backup software to exclude files or folders. Usually they're so small it isn't worth the trouble. But in some cases those small changes can add up in scenarios where there are many thousands of them. Here again, the backups are worthless if they can't be used. Even if the hosting company charges for doing so, it's worthwhile to test once or twice a year at least to ensure the data can be restored. That's especially true of database backups, which often involve special software and routines. Database files have a special structure and the information is related in certain ways that require backups be done differently. Developing a backup strategy can be straightforward. Start simply and review your plan from time to time, modifying it as your site changes and grows. But don't neglect the subject entirely. The day will come when a hard drive fails, or you get hacked or attacked by a virus, or you accidentally delete something important. When that day comes, the few minutes or hours you spent developing and executing a backup plan will have saved you days or weeks of effort. 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. |