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Web Hosting - Bandwidth and Server Load, What's That?
Two key performance metrics will impact every web site owner sooner or later: bandwidth and server load.
Bandwidth is the amount of network capacity available, and the term actually covers two different aspects. 'Bandwidth' can mean the measure of network capacity for web traffic back and forth at a given time. Or, it sometimes is used to mean the amount that is allowed for some interval, such as one month. Both are important.
As files are transferred, emails sent and received, and web pages accessed, network bandwidth is being used. If you want to send water through a pipe, you have to have a pipe. Those pipes can vary in size and the amount of water going through them at any time can also vary.
Total monthly bandwidth is a cap that hosting companies place on sites in order to share fairly a limited resource. Companies monitor sites in order to keep one site from accidentally or deliberately consuming all the network capacity. Similar considerations apply to instantaneous bandwidth, though companies usually have such large network 'pipes' that it's much less common for heavy use by one user to be a problem.
Server load is a more generic concept.
It often refers, in more technical discussions, solely to CPU utilization. The CPU (central processing unit) is the component in a computer that processes instructions from programs, ordering memory to be used a certain way, moving files from one place to the next and more.
Every function you perform consumes some CPU and its role is so central (hence the name) that it has come to be used as a synonym for the computer itself. People point to their case and say 'That is the CPU'. But, the computer actually has memory, disk drive(s) and several other features required in order to do its job.
Server load refers, in more general circumstances, to the amount of use of each of those other components in total.
Disk drives can be busy fetching files which they do in pieces, which are then assembled in memory and presented on the monitor, all controlled by instructions managed by the CPU.
Memory capacity is limited. It's often the case that not all programs can use as much as they need at the same time. Special operating system routines control who gets how much, when and for how long, sharing the total 'pool' among competing processes.
So, how 'loaded' the server is at any given time or over time is a matter of how heavily used any one, or all, of these components are.
Why should you care?
Because every web site owner will want to understand why a server becomes slow or unresponsive, and be able to optimize their use of it.
When you share a server with other sites, which is extremely common, the traffic other sites receive creates load on the server that can affect your site. There's a limited amount you can do to influence that situation. But if you're aware of it, you can request the company move you to a less heavily loaded server. Or, if the other site (which you generally have no visibility to) is misbehaving, it's possible to get them moved or banned.
But when you have a dedicated server, you have much more control over load issues. You can optimize your own site's HTML pages and programs, tune a database and carry out other activities that maximize throughput. Your users will see that as quicker page accesses and a more enjoyable user experience.
Getting Paid to Work for Yourself: Writing Grants and Grants for Writers (grants for writers) Do you have a fantastic idea to improve the world? Are you frustrated because no one is addressing the issues that you know are important? Writing is a powerful tool that can bring change and improvement to the world. Grants are available from various sources in order to fund important work that is not being done in the corporate world. If you are inspired to make improvements and make life better, you may be an ideal candidate for grant writing. How Do Grants Work? Grants are sums of money awarded by the government or other entities to those who can use that money effectively. Candidates for grants are usually those who can serve their community with the money given to them. The way it works is that you start with an idea. Your idea could benefit your community in areas that range from tourism to health care. If you have the capabilities to implement your idea, you then decide how much money it would take to do so. At that point you begin to write. You must convince those with the grant money of why they should give it to you. The writing of the grant may be the most important step in the process of receiving that grant money. Writing a Grant Writing a grant is a very precise process. It involves explaining very clearly what your idea for improvement is as well as why it is a worthwhile pursuit. In the actual grant writing, you must be very clear in your explanations as well as persuasive in your arguments. You can find actual templates or set up guidelines online or in style handbooks. Those resources will help you ensure that you are following proper procedures in writing grants. Grants for writers are potential job opportunities. Since some brilliant minds do not necessarily have the appropriate writing talent, they may hire a writer to actually complete the grant proposal. Writers have more opportunities to enter into the grant writing process than just being the executer though. Is it Possible to Get Grants to Write? Grants for writers are definitely available. What would you write that would be worthy of a grant? There are many possibilities. You may be able to write a guidebook that fulfills a community need. A tourism guide would be of particular interest to the government. Keep in mind though, that only unfulfilled needs will merit grants. Grants for writers are not given to those who are writing redundantly on a topic or who are writing about an issue that no one cares about. You may be thinking that writing is free. Aside from the actual printing and publishing costs, there is no money required to produce text. Especially if you think of writing as opposed to creating a clean burning engine, the costs are not even comparable. The great thing is that even if you don’t need very much money to get the words on the page, there are grants available just to write you a paycheck. On top of any costs incurred through research and development of your ideas, you will also get paid should you be awarded grant money. There are two different meanings for the phrase, ‘grants for writers.’ A grant may need to be written by a qualified writer. The other possibility is that a writer could actually be awarded grant money for their contributions. Writing is a powerful tool. It can persuade and benefit people from where it sits on the page. For that reason, writers and grants are inseparable. If you have a great idea that needs funding, consider writing a grant. If you are not a writer yourself, be comforted by the fact that there is someone out there who can do the writing for you. Web Hosting - Is a Dedicated Server Worth What You Pay? In reviewing web hosting plans, many web site owners are faced at some point with the decision of whether or not to pay for a dedicated server. A dedicated server is one which holds your site(s) exclusively. It's not shared with other sites. You then have the option to put one site or many on that piece of hardware. But the decision is never easy. There are multiple considerations to take into account, far beyond just the higher dollar outlay that inevitably accompanies a dedicated server option. Performance is (or should be) a prime consideration for the majority of site owners. Studies show that when a page doesn't load within about 10 seconds or less, almost everyone will give up and go elsewhere. The delay may be caused at any of a hundred different points in the chain between the server and the user. But often, it's the server itself. In any case, it's important to eliminate the server as a possible bottleneck, since it's one of the few points over which the site owner can exercise some control. That need for control extends further than just performance, however. Other aspects of the user experience can benefit or suffer from server behavior. Security is a prime example. With the continuing prevalence of spam and viruses, a server can easily get infected. Having only your site(s) on a single server makes that issue much easier to deal with. With fewer sites on a server, there is less likelihood of getting infected in the first place. Also, since you will place a higher value on security than many others, it's easier to keep a dedicated server clean and your site well protected. You can use best practices in security to fortify your site. Having other sites on the server that you don't control raises the odds that your efforts are for nothing. One way your efforts can get watered down is through IP address sharing. Less sophisticated hosting services will often assign a single IP address to a single server and multipe sites. That means your site is sharing the same IP address with other domains. That leaves you vulnerable in several ways. Virus or spam attacks may target a particular IP address. If you have the same one as another site, one that is more likely to attract hostile intentions, you suffer for and with someone else. In other cases an IP address range is assigned to the server, with each site receiving its own address from within that range. Though better than the one IP:server scenario, this still presents a vulnerability. Many attacks try a range of IP addresses, not just a single one. But even legitimate sources can give you trouble when you share an IP address or a range. If another site engages in behavior that gets it banned, you can suffer the same fate if they ban the address or range. If the miscreant that shares your server/IP address or range is himself a spammer for example, and gets blacklisted, you can inadvertently be banned along with him. Using a dedicated server can overcome that problem. There's a certain comfort level in knowing what is installed on the server you use, and knowing that you alone put it there. But a dedicated server option may require increased administration on your part. If you're not prepared to deal with that, you may have to pay still more to have your dedicated server managed by someone else. All these factors have to be weighed carefully when considering a dedicated server plan. |