Welcome to crazydating.net
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.
Send Free Cyber Greetings to Friends and Family with These Popular Sites Are you looking for a fast, fun and easy way to stay in touch with family? If so, consider sending free cyber greetings to your best friends and family members by taking advantage of the services offered by many fine e-greeting card services. Here are some reasons why you should consider sending ecards, and where you can find the very best in electronic greetings. Why Should You Consider Electronic Greeting Cards? The traditionalists among us will complain the World Wide Web is quickly eating away at the last traces of decorum and good manners. They will suggest that there is no replacement for the thoughtful and handwritten stationary note. While it is true that there is no equivalent to the handwritten note, it does not mean that you should exclude electronic greeting cards from your social life. Electronic greeting cards can actually be quite helpful in establishing friendships, keeping in touch and sending out a last-minute greeting. In truth, electronic greeting cards may be the saving grace of the modern electronic age. Sending an electronic greeting card is just casual enough to keep you touch, and just formal enough to send a meaningful greeting to someone that you really care about. When it comes to keeping in touch with the people you love, you may want to send out a paper greeting card. However, for those occasions where the important occasion has slipped your mind, an electronic greeting card is an easy way to tell someone that you have not forgotten about him or her. More Reasons Why You Should Send Electronic Greeting Cards Besides being a very quick and easy way to stay in touch, electronic greeting cards are also a great way to help the environment. As more of us move towards an environmentally sustainable future, you may want to send your environmentally conscious friend or family member an electronic greeting card. This is a fun and simple way to save paper and resources. Digital Greeting Cards are Fun and Easy Free virtual postcards are an easy way to keep in touch with friends and family. How do these virtual postcard services work? Usually, you simply select the card that you want from an assortment of electronic designs. Many websites even allow you to select various features of your card. You can often choose your own image, music, background music and other special design features. Then, all you have to do is simply type in your own personalized greeting. Then simply type in your recipient's email address, and wait to hear back from them. Your recipient will either receive an email message with an in-text card greeting, or a link to view their virtual postcard. Where Can You Find the Web's Best Electronic Greeting Cards Services? Fortunately, email has allowed us to become closer to own another, and electronic greeting cards are an easy and fun way to stay in touch. There are many fine websites that allow you to send and receive electronic greeting cards for free. Here is just a brief sampling of the web's best free virtual greeting card services. These include FreeWebCards.com, AllFreeGreetingCards.com, Greetings Island, E-Greetingz.com, Virtual Gravy Greetings, Electronic-Greetings.com, AAAPostCards.com, Radio Cards, E-Cards-Greetings.com, and CyberKisses. What to Look for in a Virtual Greeting Card Service First, although many greeting card services offer paid services, there are still plenty of free greeting card services to choose from. If personalization is important to you, choose a greeting card service that offers a large selection of cards and that allows you to choose from a selection of fonts, colors, music and other template and personalization choices. Freebie Etiquette (Yes, There is Such a Thing!) When you are on the hunt for free stuff, it can be easy to be so blinded by the offers that your manners go flying out the window completely. You may also just not realize that when it comes to taking advantage of freebies there is a general code of conduct that it pays to follow. While you are racking up the free stuff, keep these common courtesy rules in mind so that you are doing your part to keep the hunt for freebies fun and enjoyable. Freebie etiquette rule number one is to remember that there is a face behind every freebie, no matter how distant it may seem. Since so many freebies come from websites and you don’t actually have interaction with a human being while you are getting them, it can be very easy to forget that someone (or very likely, a lot of someones) worked hard to bring you that website and that free deal. If you have a problem with a website or a form while trying to get some free stuff, deal with it as respectfully as you would if you had to approach a customer service rep in person. Leaving foul-mouthed posts on a message board or unloading a barrage of outrage on a customer reply form isn’t the way forward. Someone – a real person – will have to help you, and you’ll get a lot further by treating them with respect. Respect is also the name of the game when it comes to rules attached for freebie offers. There are often restrictions in place for taking advantage of free offers, such as the age you have to be to cash in on the offer or how many offers per household can be taken. Sure, there are plenty of ways to get around these rules and “trick” a company into giving you an offer for which you are not really eligible. However, when you try to simply bleed out as many free offers as you can, you’re only making it hard on companies to be able to keep bringing these offers to you. If this freebie isn’t for you, take a back seat and make room for the folks who can take advantage of it. Your time will come. Related to this last rule is the idea of not being too greedy when gobbling up the free stuff. Just because something is free doesn’t mean you should use a “smash and grab” approach and go for as much as you can get of anything you can get. Remember that there are a lot of other people out there who like to get in on the freebies, too, and think about how you would feel if you lost out on something you really wanted because someone came along and took them all. Don’t take more than your share of any free offer, and don’t take things you don’t want or need just because they’re free. Everyone loses when you do that. Last but not least, if you have an opportunity to say thanks for a freebie, grab it. Of course, this can be hard to do when the free offers you are taking advantage of are found on the Internet, but there are still ways. Look for the customer comment field in the request forms you fill out to get your free stuff and leave a quick thank you there. You can also write a thank you on message boards and chat rooms that are associated with the freebie websites. The good will generated by your gratitude will only help convince companies that freebie offers are useful tools for reeling in the customers. |