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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.
Writing Tips for all Styles of Writing (writing tips) Most writing tips you will come across are usually geared towards certain writing topics. You can find fiction writing tips, short story tips, and poetry tips among the different ones. These tips are suitable for any style writer. Setting aside a time to write: You have to choose which is best for you. Some writers prefer having a set schedule. They schedule their days as if they are working a 9-5 job. Or some write in the fly and impulsively. Neither way is right or wrong. It is just a matter of choosing the one that fits your lifestyle and writing techniques. Know how to prevent writers block. It often helps keep your mind fresh and writers block at bay when you write about more that one topic at a time. This can keep the creative juices moving and the brain actively thinking about what the next lines are going to be. Writing about topics you know about or have a desire to know about also help the words continue to flow onto your canvas. Writing daily keeps your imagination open and always running. If the words start to become difficult to create, take a break and change the scenery before they are lost. It is easier to add to ideas already in your head than it is to try and start from scratch again. Another great writing tip is to keep a notebook and pen with you at all times. How frustrating it is when you have this fantastic idea but you forget what it is before you can find a pen and paper to write it down. Or you have a dream and wake up thinking that a great story could come of it and then in a flash it is gone. Set daily goals for yourself. Whether you are on a schedule or an impulsive writer setting daily goals will make sure you reach your intended outcome. Daily goals are usually much easier to obtain than weekly goals. If you do not have an education in writing but love to write it will help your career to learn writing basics. Understanding the different writing techniques and styles or basic grammar are imperative parts in a writers career. There are low cost and even free online course that will lead you in the right direction. Another helpful writing tip is to have a proofreader. This can be a family member, a colleague, or a friend. Every writer proofreads there on work over and over but a proofreader will often pick up things that we miss. The writer of a story knows what they want to say; therefore it is to miss an out of place word because you often read what you know it should say instead of what it really says. A proofreader will read the actual words and let you know whether they make sense or need changed. The research you do for an article needs to be accurate and update. A topic with information can be detrimental to your career. It shows lack of responsibility to find correct information. It shows apathetic writing abilities and reflects poorly on your character. The most important tip that you should know is to know what you are trying to achieve with your writing and knowing what its purpose it. By knowing this you will be able to keep focus on the point of your writing. Whether you are writing a story and try to keep reader enthralled with your characters or a late breaking news article by remember the purpose of your story will help you stay focused and on the right track. Web Hosting - Sharing A Server – Things To Think About You can often get a substantial discount off web hosting fees by sharing a server with other sites. Or, you may have multiple sites of your own on the same system. But, just as sharing a house can have benefits and drawbacks, so too with a server. The first consideration is availability. Shared servers get re-booted more often than stand alone systems. That can happen for multiple reasons. Another site's software may produce a problem or make a change that requires a re-boot. While that's less common on Unix-based systems than on Windows, it still happens. Be prepared for more scheduled and unplanned outages when you share a server. Load is the next, and more obvious, issue. A single pickup truck can only haul so much weight. If the truck is already half-loaded with someone else's rocks, it will not haul yours as easily. Most websites are fairly static. A reader hits a page, then spends some time skimming it before loading another. During that time, the server has capacity to satisfy other requests without affecting you. All the shared resources - CPU, memory, disks, network and other components - can easily handle multiple users (up to a point). But all servers have inherent capacity limitations. The component that processes software instructions (the CPU) can only do so much. Most large servers will have more than one (some as many as 16), but there are still limits to what they can do. The more requests they receive, the busier they are. At a certain point, your software request (such as accessing a website page) has to wait a bit. Memory on a server functions in a similar way. It's a shared resource on the server and there is only so much of it. As it gets used up, the system lets one process use some, then another, in turn. But sharing that resource causes delays. The more requests there are, the longer the delays. You may experience that as waiting for a page to appear in the browser or a file to download. Bottlenecks can appear in other places outside, but connected to, the server itself. Network components get shared among multiple users along with everything else. And, as with those others, the more requests there are (and the longer they tie them up) the longer the delays you notice. The only way to get an objective look at whether a server and the connected network have enough capacity is to measure and test. All systems are capable of reporting how much of what is being used. Most can compile that information into some form of statistical report. Reviewing that data allows for a rational assessment of how much capacity is being used and how much is still available. It also allows a knowledgeable person to make projections of how much more sharing is possible with what level of impact. Request that information and, if necessary, get help in interpreting it. Then you can make a cost-benefit decision based on fact. |