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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.
Proctor and Gamble Great at the Freebie Thing Do you have a favorite manufacturer that you like to tap into for free product samples and coupons? For those in the know, the Proctor and Gamble Corporation is one of the best companies for getting your share of freebies. This popular manufacturer is well known as the creator of many fine household products. For freebie hunters, the Proctor and Gamble Corporation are known as one of the most reliable sources for awesome freebie deals and promotions. Here are some hints and tips at become at an ace at getting freebies from your favorite manufacturer. Get to Know the Proctor and Gamble Corporation for the Best Shot at Great Freebies If you want the best shot at getting the best freebies from Proctor and Gamble, you will find that they are very generous with their free samples and coupon freebies. But you will have to take the time to know the company. Peruse their website and get to know their promotion schedule. The Proctor and Gamble Corporation is a favorite with many freebie hunters because it provides consumers with a wide range of products and they even maintain a special webpage dedicated exclusively to their current promotions and offers. Once you have located this page on their official website, go ahead and bookmark it for future reference. Check with the site periodically to see what offers and promotions are currently on the table. Enable Flash to Get the Most Out of the Proctor and Gamble Page Recently, the Proctor and Gamble Corporation, along with many other streamlined websites, has added a Flash based scrolling design to display their current offers and promotions. In order to view these promotions, you will have to make sure that you have Flash enabled on your web browser. These scrolling offers are shown at the bottom of the page. Check these often and carefully as new offers are added periodically. Read the scrolling items carefully. Some of them will link you to official sweepstakes offers, while others will lead you straight to freebie offers and coupons. Selecting the Proctor and Gamble Offers that Most Interest You In order to get the best deals, visit the promotions page on the official Proctor and Gamble website. From there, you can select all the free offers that most interest you. The Proctor and Gamble webpage usually comes loaded with a healthy selection of free samples, sweepstakes and coupon offers. Another thing you can do to make sure that you always have access to great Proctor and Gamble promotions is to get on their mailing list. Make sure you select the products you are most interested in so that you will get pertinent mailers and coupons. Read the Fine Print on Proctor and Gamble Offers and Promotions When it comes to manufacturer promotions, time is of the essence. Most great deals and offers will not last forever. Make a note of the expiration date of the deals you are interested in. Read the fine print on the promotions. Most will only be available to United States residents. However, international customers do not have to despair. Simply look for the global link on the main page. This will connect you to other pages that offer you pertinent promotions for your country of residence. For the most part, Proctor and Gamble has established itself as a worthy generator of freebies, coupons and sweepstakes offers. Chances are that you will find your freebies in the mail within a few short weeks of making your initial request. Are There Any Risks Associated with Getting Proctor and Gamble Promotions? Some people are wary about handing over their personal contact information to a company. If this is a concern with you, make sure that you read the company's own privacy policy. As a general rule, you should avoid making requests and giving personal information to companies that do not offer you easy access to their privacy policy. Web Hosting - Changing Web Hosts, Pitfalls and Planning At some point, nearly everyone finds it necessary to change web hosts. It may be just a migration to another server, or it may be changing web hosting companies entirely. Either way, the process is fraught with potential dangers. But there are ways to minimize the odds of problems and maximize your changes of a smooth migration. Plan, plan, plan. Make a very detailed list of everything that is on your current system. Review what is static and what changes frequently. Note any tailoring done to software and files. Be prepared to remake them if the systems aren't transferred properly or can't be restored. Keep careful track of all old and new names, IP addresses and other information needed to make the migration. Backup and Test Backup everything on your system yourself, whenever possible. Web hosting companies typically offer that as a service, but the staff and/or software are often less than par. Often backups appear to go well, but they're rarely tested by restoring to a spare server. When the time comes that they're needed, they sometimes don't work. Do a dry run, if you can. Restore the system to its new location and make any needed changes. If you have the host name and or IP address buried in files, make sure it gets changed. This is often true of databases. SQL Server on Windows, for example, picks up the host name during installation. Moving a single database, or even multiple ones, to a new server is straightforward using in-built utilities or commercial backup/restore software. But moving certain system-related information may require changing the host name stored inside the master database. Similar considerations apply to web servers and other components. Accept Some Downtime Be prepared for some downtime. Very few systems can be picked up, moved to another place, then brought online with zero downtime. Doing so is possible, in fact it's common. But in such scenarios high-powered professionals use state-of-the-art tools to make the transition seamless. Most staff at web hosting companies don't have the skills or the resources to pull it off. Prepare for Name Changes One aspect of moving to a new host can bedevil the most skilled professionals: changing domain names and or domain name/IP address combinations. When you type a URL into your browser, or click on one, that name is used because it's easier for people to remember. www.yahoo.com is a lot easier to remember than 209.131.36.158. Yet the name and or name/IP address combination can (and does) change. Still, specialized servers called DNS (Domain Name System) servers have to keep track of them. And there are a lot of them. There may be only two (rarely) or there may be a dozen or more DNS servers between your visitors' browsers/computers and your web host. Every system along the chain has to keep track of who is who. When a name/IP address changes, that pair has to be communicated to everyone along the chain, and that takes time. In the meantime, it's possible for one visitor to find you at the new place, while another will be pointing to the old one. Some amount of downtime will usually occur while everything gets back in sync. The Little Gotchas But even apart from name and IP address changes, there are a hundred little things that can, and often do, go wrong. That's not a disaster. It's just the normal hurdles that arise when changing something as complicated as a web site and the associated systems that underlie it. Gather Tools and Support Having an FTP program that you're familiar with will help facilitate the change. That will allow you to quickly move files from one place to the next to do your part to get the system ready to go or make repairs. Making the effort to get to know, and become friendly with, support staff at the new site can be a huge benefit. They may be more willing to address your problem before the dozen others they have to deal with at any given moment. Ok. On your mark. Get ready. Go. |