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Web Hosting - Managing Disk Space
Few things are less exciting than managing the disk space that always seems to be in too short a supply. But few things are more important to the health and well being of your site.
The most obvious aspect of managing disk space is the need to have enough. If you have only a few dozen web pages, that's not an issue. But as the amount of information (web pages, database content and more) grows, the quantity of free space goes down.
That's important for two reasons.
All permanent information on a computer is stored on hard drives. Temporary information is often stored in memory only. The two components are completely separate, though they are sometimes confused with one another. As the amount of free space on the hard drive decreases several effects occur.
Here's one way to picture them...
Imagine you had a table with a certain area and you lay out playing cards on the table. At first, you lay them out in order, the 2 at the side of the 3, then 4, and so on. But then you pick up one or two cards from the middle and discard them. Then you add some more cards. Pretty soon things look pretty random.
Now cover the cards with a big opaque sheet of paper.
You want the cards to appear in order when displayed to someone. A special robot could be designed to always pick up the cards from underneath the sheet in order. Or, it could slide a hole in the sheet over the cards to display them in the correct order (2, 3, 4, ...), no matter what order they are really in. That's similar to how the operating system always shows you information in a sensible way, even though it's actually stored randomly.
Why should you care?
Real files are stored in pieces scattered around the drive wherever there is space for them. The more free space there is, the quicker the operating system can find a place to store a new piece. That means, if you delete the junk you no longer need (and free up more space) the system actually runs quicker. It helps create space you might need, and allows the operating system to store files for you faster.
But there's a second effect.
As you delete old files or change them, the pieces get more and more scattered. It takes the 'robot' longer and longer to fetch or display the 'cards' in order. Existing files are fetched and put together 'on the fly' (say, when you request a graphical page or a list of names). But, it takes longer to put together the web page when there are more scattered pieces.
So, the other aspect of managing disk space is to keep the pieces of the files more or less in order. A utility that does that is called a 'de-fragger' or de-fragmentation program. You can request that a system administrator run it, or if you have the authority, you can run it yourself. That keeps the 'cards' in order and allows for quicker access to them.
So, managing disk space involves chiefly three things: (1) keeping enough space to store what you need to store, and also (2) keeping enough free space to make new file storage quick and (3) making old file retrieval fast by keeping things orderly.
When only a few files are involved the benefit isn't worth the effort. But as the number and size of the files grow, to thousands of files or several gigabytes of data, the effect becomes more noticeable. Keeping things organized then makes a significant difference in performance.
Much of this can be automated using utilities. Some will delete files in a certain folder older than a certain date. A de-fragger can be set to run automatically during times of light usage, or quietly in the background at all times. Discuss the options with your system administrator and help him or her do the job better by keeping your house in order. You'll benefit by having a better performing web site.
Online Writing Labs: You have One Available for You (online writing labs) There are numerous colleges and universities around the United States and the world that offer online writing labs. The labs are designed to offer help and instruction for any writing matter. Most Online writing labs are only available to the students of the offering college or university, but there are a few that are open to the general public. Virginia Tech has an online self help section and email help available for questions you have about grammar. The online writing labs are beneficial to both the writer in need of the help and the person helping them. The helper or tutors are usually graduate students working for their degree they benefit from the additional teaching practice. The students are getting proofreading, critiquing, and feedback along with any help they may need. The online writing labs were created by the schools to offer extra help to their students in their writing. They offer support in most areas of writing including choosing a topic, grammar help, revising a draft, and editing. They provide tutored help in these areas to students and faculty. Many online writing labs are set up to help you in three ways; online self help, email support, and one on one personal support. The online self help applications are available 24 hours a day. For the email support you email in your paper or project and you will receive a response with in 24 hours. The one on one personal support is a great way for students to learn how to do their own proofreading and editing. The tutors will help show the students what to look for and how to find their own mistakes. This is a great opportunity for help with someone other than a teacher. Even though the online help is available student are encouraged to use the writing lab tutors on a regular basis to improve their writing skills. Purdue University has an online writing lab they call OWL. It offers a wealth of information that virtually anyone can use. They offer a highly detailed step by step instruct of the writing process and huge section on professional, technical, and scientific writing. A section in job search writing that walks you through everything, from your academic coversheet to writing a personal statement, step by step. General Academic writing and research and citation help. This is the best site for offering its advice absolutely free. This site definitely deserves to be bookmarked on your computer if you are a serious writer, a student, a teacher, it really doesn?t matter. The University of Richmond has a program they call Writing Center. Although not as complex as Perdue?s they offer online self help topics for writers. Starting with the writing process to grammar and punctuation, it is another option for you. The University of Wisconsin has the Writing Center that offers some help with the basics. One thing to keep in mind that many of the universities and colleges that offer these many take them offline in between semesters and on breaks. If you are a student, many of you have an online writing lab available at your school or one that reciprocates with your school. Though the general public have self help online help available to them, chances are your school will offer some sort of one on one help to guide you through your work. Check it out it could be very beneficial to you. If you don?t have one available, it is highly recommend checking out OWL at Perdue or search the Internet. There are a lot of self-help online writing labs available to you. Software copyright act The Software Copyright Act was a Great Step in the Right Direction The software copyright act, which is actually called the Digital Millennium Copyright Act has given software developers a little more power when it comes to protecting their works. If you've bought software in the last few years I'm sure you've noticed some of the changes that have been made in the software buying process. If not, then you really should wake up and take note. Some of the more noteworthy achievements of this act are the following: 1) It is now a crime to go around anti-piracy measures in software. 2) It is no longer legal to make, sale, or give away software or devices that were invented for the purpose of cracking codes enabling the illegal copying of software. 3) Limits the liability that ISPs (as far as copyright infringement violations) when information is transmitted online. The problem isn't the people want to be bad or do something wrong. Most of us by nature want to do the right thing. The problem lies in educating people to the fact that it really is stealing when you bootleg, pirate, illegally download, or otherwise acquire copies of software that you didn't pay for. It's one of those 'white lie' types of crimes for most people and they don't really see how it will hurt anyone for them to copy a game that their brother, cousin, uncle, or friend has. Someone paid for it after all. The problem is that at $50 plus being the average price for computer games and simple software if 10 million people are doing it, the numbers are staggering and they add up quickly. The software copyright act sought to protect businesses from losing money this way. The software copyright act was the worldwide response to a growing problem. This problem was so widespread with illegal downloading of music that lawsuits and massive commercial ad campaigns were initiated in order to curtail illegal downloading activities when it comes to music. It seems to be working to some degree. Fewer people are illegally downloading music; the downside is that these people aren't buying as much music either. The reason is because they are no longer being exposed to the wide variety of music and artists that they were getting freely when downloading music each night at no cost. This equals lower record sales and is becoming a problem of lower movie sales and software sales as well. People aren't trying new games like they could before the software copyright act by going to LAN parties and everyone sharing a copy to play, now everyone has to own a copy before they can play. While this may be great for the companies that make a few (a minimal few at best) extra sales on the games for the sake of a great party but for the most part, it is costing them the extra money that could be made by 10 people finding they liked the game enough to go out and buy it so they could play it whenever (and the next group of 10 they will introduce the game to) Gamers are a funny group and software copyright act or no, they are going to stick with the software and games that serve them best. The software copyright act was created in order to protect the rights of those writing and developing computer software. We want those who fill our lives with fun games, useful tools, and great ways to connect to friends and family to continue providing these great services and to get paid for the ones they've already provided. The software copyright act is one giant step in the right direction as far as I'm concerned. |