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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.
Music Copyright Law Are You Violating Music Copyright Law? With the popularity of the Internet, many people are violating music copyright law and do not even know it. Music copyright law can be very tricky. There are multiple music copyrights that you must keep in mind ? lyrics, composition and the recording of the music by an artist. Using someone?s music may involve you acquiring many different licenses such as mechanical, synchronization, performance and publishing licenses. Music copyright law has separate copyrights for the vocal or instrumental recordings of a composition or performance and the copyright of the written lyrics and music. Standard music copyrighting practices usually entail that the writer of the song retains the rights to the right to the music composition which the studio that did the recording of the music holds the rights of the recording. Music copyright law can get very complicated. It can involve negotiations with the writers, producers, agents, heirs and more. Many artists and studios are upset with the decline in music sales. They are attributing this decline to people who are violating music copyright law by downloading music on the Internet. Music files are under the same copyright law as music recordings and the owners of these copyrights are entitled to royalties or compensation for the music that people are illegally downloading on the Internet. The simple fact is you are stealing if you make copies of copyrighted music recordings without authorization to do so. If people were sued for the music they have downloaded illegally, it could result in thousands of dollars. Music copyright law states that it is illegal to duplicate and distribute creative work. If you send someone an email with a song that you have illegally downloaded on the Internet, you could be in for some serious trouble. To put it bluntly and plainly, if you download (or upload) music that is copyrighted without permission to do so, you are breaking the law. Many people violate music copyright law and do not even understand how their actions are criminal. If you purchase a music CD you can make a copy of it for yourself on your MP3. However, if you then use that recording and put it on your website or blog and make it available for everyone to download, you are performing an illegal act. Even if you join a site and pay a fee to download music you are in violation of music copyright law. This may sound like something that would never come back to haunt you. After all, if you were caught, it would be a first time offense, right? Well, you should know that there have been first time offenders who have been fined up to $250,000 and up to five years in jail for violating music copyright law. It is so much easier to go out and pay 20 bucks for a CD. Whether you are uploading music or downloading music, educate yourself on music copyright law. No one wants to ruin their financial future and face jail time. Enjoy music, just do it the right way! Beautiful Pens are Just the Beginning: Fascinating Gifts for Writers (gifts for writers) Buying gifts is a difficult project in many cases. Sometimes a person seems to already have everything. They may not enjoy the typical gift ideas that come to your mind. To buy the perfect gift, it is essential to actually know a person. A basic understanding of likes and dislikes will help, but passions will guide you to a really great gift. If you cannot come to a conclusion for what to buy for a friend, you can also consult other sources for gift ideas. Following are some ideas for buying gifts for writers. Writers are passionate people. They are passionate about words and about truth. They are also passionate about their subject matter. Is there a writer in your life? By using these guidelines, along with your knowledge about that person, you can come up with an ideal gift that they will treasure. Under Twenty Dollars As suggested by the title, a beautiful pen is almost always an inexpensive and appropriate gift for a writer. Most writers spend much of their time jotting down thoughts and ideas. As they meander through their day, an idea may strike at any time. Give them a quality instrument to facilitate great thoughts. You can also include a personalized pad of paper to hold on to the brainstorms. Another great gift for a writer is a magazine subscription. A good writer needs to keep up with the type of writing that is being published. Sometimes they need a little bit of light reading to keep their creative juices flowing. Choose the magazine based on some interest that you and your friend share. Under One Hundred Dollars If you want to spend a little bit more on gifts for writers, you can start taking your gift buying to a little bit different level. For less than one hundred dollars your options open up. Books are great gifts for writers. You can buy new books in the writer?s area of interest or expertise. He will probably always be ready to expand his own knowledge base. You can also buy reference books. Style manuals are very helpful when a writer has strict guidelines to follow. Your writing friend probably already has a pretty good dictionary, but you can buy them the best one. Thesauruses and literary guides are also interesting gifts to receive. Moving away from words for a bit, a writer would also love to receive an artifact that has to do with their main subject matter. If he is a history buff, try to find an authentic coin from the particular piece of history he finds most fascinating. Under Five Hundred Dollars At the next level of gift buying, your options start expanding into more elaborate forms of previous gifts. Very old and rare books may fall into this price range. Very old or particularly good quality antiques will also be fairly expensive. Gifts for writers also often fall into the category of electronics. Good printers make the writing all that more impressive looking on the page. Software and other hardware for the computer is also a worthwhile gift for a writer that spends most of his day sitting at his computer. A nice digital camera is also a fantastic gift for a writer that wants to remember situations exactly in order to adequately describe them later. Won?t Cost you A Dime Some of the best gifts for writers won?t cost you anything. Many of the more expensive gifts are extremely practical, but the free ones can be that also. The nature of a writing career leads writers to spend a lot of time alone. A good gift is just some company. Take your friend out for dinner with a group of mutual friends. He?ll appreciate the time away from the desk. If he?s been trying to get an interview with someone, you can put the leg work in for him and schedule it. All that will cost you is some time and effort. Not all gifts have to cost money. Good luck finding the perfect one for the writer in your life. |