Web Hosting | Linux – babeldisk.com

Why Choose A Cloud Hosting Environment Over Managed Server Hosting?

31.08.2011 (5:32 pm) – Filed under: Uncategorized ::

Keep this in mind when considering this question. In reality “managed server” and “cloud” are not mutually exclusive. There are providers who offer fully managed clouds that use very similar hardware as fully managed servers, with the main difference being the addition of virtualization software to improve the utilization and flexibility of a managed server without virtualization software.

Cloud can be just as secure as any managed server – it’s just a matter of the networking environment and degree of sharing allowed or prohibited.

Any company needing flexible resources, or using multiple managed servers to support their cloud infrastructure, stands a good chance of getting better utilization from their servers if they set up a cloud paradigm. This is especially true for any company interested in off-site backup or a warm or hot disaster recovery site since the savings are now multiplied across 2 server stacks.

As an example, a friends company moved their entire infrastructure to a virtualized server environment (the cloud) and reduced the number of physical servers from 28 to 2 – HUGE savings in physical resources and maintenance. Plus, they were able to set up a remote redundant cloud on servers without worrying about having identical hardware because the virtual server configuration is hardware-agnostic. Their recovery time in a live failover test was a matter of hours, instead of a matter of days.

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And because any virtual server system (cloud) with more than one physical server can automatically fail over to another machine in the event of hardware failure, they actually find that it’s MORE stable in the cloud than with their previous server system. Their IT support staff can actually perform software and hardware upgrades during the day, without causing any downtime to the company, because all of their systems can seamlessly move over to one part of the cloud while the other is undergoing maintenance.

The one place that cloud servers struggle with performance wise can be with robust databases – sometimes it’s best to leave the database server on it’s own dedicated machine if query-intensive applications are running against it.

Overall, they have found the cloud to greatly IMPROVE their resiliency and stability, and because they still have it on dedicated hardware, it’s completely secure. They couldn’t get their IT folks to go back to a non-virtual managed server technology – or any of their C-level execs either, for that matter.

The converse argument is this …..

Cloud is vaporware – marketing, pure and simple. Nothing more.

The security issues associated with ‘cloud’ are identical to those associated with conventional hosting, not to mention a suite of new security and legal issues associated with deployment in the cloud. For example, if multiple copies exist, which is the legal original? If data is compromised in the cloud, and legal action is brought, which jurisdiction applies – where you live, where the server resides, where the corporate office resides, or where the contract specifies?

Cloud is a way for large suppliers – Microsoft, for example – to centralize control and impose standard, while consumers – you – save money by not haing to upgrade technology and infrastructure constantly. However, what assurance do you have that your data is not living on some out of warranty DL380 server with one bad drive in the RAID?

Yes, technology costs money, and qualified engineers – like me – also cost money, However control over the access to your critical data is more important than getting into the ‘next big thing’ and ‘being in the cloud. If you cannot afford to deploy multiple points of presence, then you probably should not be doing anything more than running a server that can manage your traffic and performing routine backups (and maybe even verifying them).

Cloud is – as it’s name implies – a mass of vapor that obscures an otherwise clear atmosphere.

Ventrilo Server Hosting

30.08.2011 (5:33 pm) – Filed under: Uncategorized ::

What do you know about Ventrilo?

Many people have never heard of Ventrilo. Ventrilo is a voice chat software that allows     users to communicate through the internet. It is often used by people who play video games, to allow them to talk with other gamers, while playing. With minimum latency Ventrilo is the most adequate software to connect users from all over the world to one another.

Taken from the Ventrilo.com site:

Ventrilo 3.0.0 is the next evolutionary step of Voice over IP (VoIP) group communications software. Ventrilo is also the industry standard by which all others measure themselves as they attempt to imitate its features.

Ventrilo is best known for it’s superior sound quality and minimal use of CPU resources so as not to interfere with day to day operations of the computer or during online game competitions. It is also preferred for the simple user interface that any first time computer user can very quickly learn because the most commonly used features are immediately visible and can be activated with a single click of the mouse.

If you would like to use Ventrilo, first go and download the software located at ventrilo.com and then get a ventrilo server from the leaders and most affordabe voip company. We know that you will not be dissapointed by this amazing VoIP software/program. Connect to yours TODAY!

To find out about using ventrilo please check out other articles posted with tutorials on setting up your server the way you want it.

Be a Part of the Virtual Dedicated Server Revolution – Become an Infinitely Virtual Reseller

29.08.2011 (5:32 pm) – Filed under: Uncategorized ::

If you are interested in enhancing your portfolio of products and services, increasing your sales revenue, and you think that server virtualization is the wave of the future, you should consider becoming an Infinitely Virtual Partner.

As a partner with Infinitely Virtual, your company can tap into a whole new revenue stream, just by doing what you do already. With no start-up costs and high margins, any company can begin making money immediately, while larger VARs and hardware resellers can use IV’s services to offer existing customers a unique set of services, as well as attracting new business.

Three Partner Levels

We have three programs designed to fit your organization. If you are looking to enhance your sales portfolio, one of our partner programs is a perfect fit.

IVVAR

You’ve got a list of products and services, a well-oiled billing department, and an experienced technical support staff. You can enhance your service offering by adding Infinitely Virtual’s services to your own as a value-added reseller.

As an independent IVVAR Partner, you’ll offer products and services built on the foundation of the Infinitely Virtual platform. You’ll be able to take advantage of discounted plans and have deep access to our virtualization infrastructure and your customer’s virtual machines in order to serve their unique requirements. In addition, you’ll be able to purchase CPU reservations, RAM, and monthly transfer in bulk, and allocate your selected resources among your customers.

You’ll be able to set your rates and bill your own customers, and we’ll bill you, at a discount, for the products and services you sell. Your company will provide all support to your customers. As an IVVAR Partner, you’ll be required to provide a value-added service or product to our platform.

IVOEM

Your company has the technical know-how and the staff for billing and support, but you’re looking for services to fill out your portfolio. Infinitely Virtual’s OEM partner program allows you to sell and rebrand our services as your own.

The IVOEM partner program is designed for companies that wish to privately label products and services. As an OEM partner, you’ll be entitled to discounted plans, and you’ll have enhanced access to the Infinitely Virtual platform so that you can manage your customer’s virtual machines directly. You’ll also be able to buy CPU reservation, RAM and monthly transfer in bulk so that you can allocate those resources to your best advantage.

As an OEM partner, you’ll set your own rates and bill your customers, and we’ll bill you, at a discount, for the products and services you use. In addition, your company will provide all post-sales technical support.

IV Reseller

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Your company is lean and your resources are focused on sales, so you don’t have the time to bill or support additional customers, or an interest in creating your own server farm. Your company is the perfect fit for the Infinitely Virtual Reseller program.

The IV Reseller program is designed for companies that wish to sell Infinitely Virtual products and services under the IV brand. Increase sales immediately, with each transaction resulting in increased monthly revenue. All billing and post-sales support is provided by Infinitely Virtual, so you can do what you do best—make sales. And we just send you a check every month.

Offer Your Customers Great Products

With Infinitely Virtual, you’ll be able to offer your customer products that stand out in the hosting industry, including Privately Hosted Exchange (PHE) with Microsoft Exchange Server 2007 and Outlook 2007, Virtual Terminal Server (VTS) with Windows 2003 or Windows 2008 Terminal Server, and Virtual Dedicated Servers (VDS) with either Windows or Linux operating systems. Your customers can take advantage of great options like daily backups, hardware firewalls and built-in antivirus protection.

Give Your Company an Edge with Hardware-based Virtual Servers

As an IV Reseller, you’ll be able to offer a wide array of products without incurring the upfront costs required to build an enterprise data center. You’ll also be able to choose the level at which you want to support your customers after the sale. Your company will have unique access to an innovative, hardware-based virtual infrastructure that allows you or your customers to access virtual machines over the web using our Virtual KVM; the ability to reboot virtual servers; and access to performance charts based on server statistics.

Join the Revolution

As a reseller or partner with Infinitely Virtual, you get a shopping list of benefits: continuous revenue stream, more servers for less money, unique reseller and customer features that help you sell more, and a great partner to help you win new business. And the future will be even brighter: Infinitely Virtual continues to innovate, searching for new ways to consolidate servers, increase server utilization, and reduce costs.

To become an IV Reseller, IVVAR or IVOEM partner, submit an application, or learn more about our unique offering at InfinitelyVirtual.com. If you are interested in enhancing your portfolio of products and services, increasing your sales revenue, and you think that server virtualization is the wave of the future, you should consider becoming an Infinitely Virtual Partner.

Why is Linux Web Internet hosting Less expensive Than Windows Internet Hosting?

28.08.2011 (5:32 pm) – Filed under: Uncategorized ::

In the internet internet hosting industry, there are 2 most important platforms which dominant the total marketplace now, which is the internet internet hosting option which runs on Linux platform or on the Windows platform. Every single of these two internet options has their individual pros and cons respectively, therefore just before everyone can come to a decision which one of them to opt for from, they want to recognize what genuinely constituted every single of these internet hosting options, in generating certain that what their requirements and requirements are met and fulfilled respectively.

Right now, folks who go with Linux internet hosting resolution are attracted by the positive aspects of Linux hosting options as nicely as its economical price tag. In truth, Linux internet hosting is a free sort of internet internet hosting resolution in which everyone is allowed to use it or modify it for their personal utilised.

Now let us examine all of the factors as of why Windows resolution deserved a higher expense as compared with Linux remedy,

1.The recognition of Windows resolution has permitted net internet hosting companies to cost additional on Windows web hosting simply because of its title which has been hugely trusted and dependent by quite a few people. On the other hand, Linux is tough to market as folks does not truly know what is Linux web internet hosting earlier than now, which can make it difficult to promote this Linux net internet hosting at any selling price nearer to what Windows net internet hosting would have been offered.

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two.It has been cited that Linux web servers are hugely far more trusted and steady than Windows net servers. With that, the internet hosting supplier who are on Windows servers require to make certain they have the assets, the two people and resources to keep the integrity of Windows net servers. All these maintenance, sustaining and avoidance expense are all getting transferred to the stop consumers which are the web-masters. This is an additional purpose why Windows solution is a great deal more pricey as in contrast to Linux solution.

three.A single of the most important reasons for their excessive price is due to Windows solutions becoming a Microsoft-primarily based application. Several business enterprise now demands for a hosting server which can run on Microsoft applications. This is exactly where Linux internet hosting located alone tough to achieve. The hosting businesses acknowledged this need and are charging a lot more on what they have to provide for their Windows web services and solutions with this fantastic need.

four.Windows internet hosting ideas and providers are drastically currently being used by normal net-users and builders. Even novices identified it simple to use Windows options due to its consumer-friendly functions and easy to adhere to navigation manual. Simply because of its popularity, additional server applications have been developed with Windows answer capacity. Microsoft was the final driver behind the screen all these many years which had successfully maintain the competitiveness for Windows alternatives in this very competitive industry which will allow the business to capitalize on the Windows answer market place.More info of Web Hosting

How to Choose the Right Agencies for Creating Website Designs

27.08.2011 (5:35 pm) – Filed under: Uncategorized ::

Selecting the right agency to create website designs for your business can get a little daunting and tricky at the same time. This task can be quite mind boggling if you do not have an idea of how to choose the best agency for the job.

There are still many people who hire the first name that pops up on a Google search list; this is such an unwise decision and can be the reason for heavy monetary loss and you can also end up spoiling your reputation. The agency listed might even be a scam resulting in money lost and no sign of a website. Another way by which many people select an agency for getting website designs is by asking for references to friends and colleagues; this is a good way provided you are asking people who have prior experience in this field.

Here are a few suggestions to keep in mind while searching for the best agency to get your website designed. After all, you are spending a lot of bucks on this job;

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The first and foremost tip is to check out if the agency has adequate experience in creating the kind of website designs that you are looking for. Check out the portfolio of the agency and go through it carefully to understand the kind of work done by the designers and the team of professional experts. Sometimes, a particular agency might be adept at creating websites of a particular kind which may not go well with what you have in mind. Hence it is of crucial importance to hire a company which does the kind of work that you are interested in.

If you find something interesting and similar to what you are looking for in the agency’s portfolio, then the next job is to assess the functionality of the website created. Check out for the overall visual appeal and also ease of use and navigation of the website to get an idea of the efficiency of the agency in creating good website designs. Remember, you are looking at these sites to understand how the agency works but also keep in mind that these sites were designed for another client and his needs and will not match accurately with yours.

It is not just enough to have a creative and eye catching website if the content is not communicated in a clear and precise manner to the target audience. Analyze if the team and the designer communicate well about the website designs; also choose an agency which gives you the freedom to offer suggestions as the work goes along so that the final product is to your satisfaction.

It is important to draw up a written contract which has all the terms and conditions, payment details as well as the deadline date to avoid any sort of confusion at a later date. Creating a successful working relationship with the agency is an absolute must if you are looking for get the perfect and attractive website designs.

Why Windows Vps Hosting Requires Lesser Investment Than Dedicated Servers

26.08.2011 (8:38 pm) – Filed under: Uncategorized ::

Windows VPS Hosting has quickly been establishing itself as one of the premier web hosting solutions in recent years. The number of webmasters with registered Windows VPS Hosting plans grew significantly. One contributory factor for the shift to Windows VPS Hosting is the cost requirement. It’s a known fact that Windows VPS Hosting plans are cheaper than dedicated servers. The cue that makes Windows VPS Hosting irresistible is its similar functionality with dedicated servers. In this article, you’ll discover why Windows VPS Hosting plans are cheaper than dedicated servers.

The Beneficial Savings of Having a Windows VPS Hosting Account

With Windows VPS Hosting plans, businesses can embark on online web presence without investing much and still enjoy the features of a dedicated server. This reason alone has made Windows VPS Hosting a preferred choice by many webmasters and resellers. However, there are more reasons to consider starting a Windows VPS Hosting account. In terms of maintenance, Windows VPS Hosting accounts are much easier compared to dedicated servers. This can save businesses the money they would use to hire someone to help manage their dedicated server account. You can save time by spending more of it running your business instead.

Another benefit Windows VPS Hosting has over dedicated servers is the simplicity of equipment. With a dedicated server account, you receive a physical system when you apply for a plan. This system is where the majority of the cost associated with dedicated servers originates. Web host providers which offer dedicated server plans should take this into consideration for each new account. With a Windows VPS Hosting account, acquiring the physical system is not needed. A Windows VPS Hosting account makes use of the hardware features of your computer instead.

The Cost Advantages of Starting a Windows VPS Hosting Plan

Windows VPS Hosting plans offer many plus factors which can reduce web hosting cost requirements. Many online businesses take the opportunity to set up as many sites as possible. Windows VPS Hosting allows resellers to create personal accounts under their package as dedicated space for their respective clients. Developers can also take advantage of such feature by creating their own custom based environment for running their applications. However, the ability to install your desired programs proves to be the most appealing feature of VPS Hosting. Windows VPS Hosting does not only reduce hosting cost but it also runs the same features common to dedicated servers. Coldfusion and Sqlserver are just two of the most popular programs many Windows VPS Hosting account holders turn to for their computers.

Professional Web Hosting vs. Free Web Hosting

26.08.2011 (5:33 pm) – Filed under: Uncategorized ::

Both free and professional web hosting have their benefits and down sides. However, before the best type of web solution can be found the webmaster will need to consider the main motivator for the website.

For those looking for a home page, hobby site, or non-profit website a free hosting service will provide the basics of what is needed at just the right price- free. Although a free website will not provide a professional scene for a business, or a webmaster looking for credibility, as unfortunately free services look very “cheap” then little else can be expected from something that costs nothing.

A free website will offer webmaster’s free templates for the design of the website, and helpful wizards that take the webmaster step by step through the uploading process. Often a free service may offer free domain names and email facilities with their package.

Customer service is often included, although how good the service is will often vary. The biggest problem with a free service is, the amount of traffic onto the sight may be limited, and the sizes of the files being transported may also be limited. Free hosting companies often experience a lot of down time, so they can at times be unreliable.

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Because the site is free, the hosting company may very well be relying on sponsors in the way of banner ads to keep the company in business. If this is the case, setting up a business with flashing banners will really cramp your style, credibility, and scare away potential customers.

Paid services are used by webmasters to keep things running smoothly in business, what this means is the good web hosting companies will provide excellent customer service, and have plenty of happy customers who are willing to add their testimonies. Professional companies will usually offer a 100% satisfaction guarantee, live chats, and telephone services for customers experiencing difficulties.

Many professional companies will also offer discounts and bonuses for your business, and reward you for paying early. Other things that a professional web hosting company will offer is ample web space, and disk space. Often large amounts of uptime will be guaranteed, and sometimes failure to keep this amount of uptime will result in compensation from company to their clients.

Professional services may cost money, but the service is far more advanced, and professional companies never take space from their customers in order to place their paid advertisements on. Depending on what a customer is looking for when they create a website, will have a lot of bearing on their choice of providers. For a webmaster that is creating a credible business venture, a professional web hosting plan is vital to business success.

How To Setup And Manage Multiple Websites With Reseller And Shared Hosting Services

25.08.2011 (5:32 pm) – Filed under: Uncategorized ::

If you already have one website, it is possible that you have been considering that your business or interests would benefit from having more than one. If you are a newcomer to this interesting aspect of the Internet, you will be probably confused not only by the quite technical terminology used but also by the many different possibilities, opinions and offers that you can find online. In this article, we will see how easy instead is to setup and manage more than one website, either for business purposes, such reselling, or for personal interest.

Getting domain names is relatively straightforward, just pick the domain registrar you want to buy from and purchase the names you prefer. Of course like with every other investment in life, one must be careful to deal with serious businesses. Prices may vary a little, but on average a.com domain name will cost you around /year. Often registrars try to differentiate themselves offering a number of additional services, such as hosting, special offers, support forums and so on. They may also offer special deals, like buy a.com and get a.info free, or free ID Protection (your details will not show up on WhoIs). What you want to especially verify is that the chosen registrar is reputable, has been in business long enough, and from a technical standpoint, make sure they offer an easy to understand control panel (to manage your domains). GoDaddy for example (the largest accredited registrar in the world), allows you to open a free account, so you can see yourself how easy (or not) is for you to navigate through their pages.

Most registrars also offer hosting, but one thing that I want to make clear, is that you do not need to host your websites with the same provider from which you bought the domains. You can buy your domains from GoDaddy (to make an example), and host with someone else. It doesn’t really matter and it won’t cost you more to do so. If this is the case, you will be managing all your domains with your hosting company, and renew and pay the domain names with the registrar. This is done once a year (or two etc.) and takes only a few minutes (or they can even be set to be renewed automatically). Keeping things separate has the benefit that you can shop around for the best deals both for registering and hosting.

If getting a domain name is quite straightforward, not so for the hosting. At this point, in fact, you must figure out what are you getting multiple domain names for. This is because basically, you can have either a shared or a so called reseller hosting account. They are quite similar and for this reason many hosts offer both. Despite the difference in the name though, make no mistake, in both cases you share your resources amongst your websites. The main difference is that with a reseller account you can re-sell hosting, so this solution is good if you want to start this as a business (which can be quite profitable, but of course it is a very competitive niche since it is so easy and inexpensive to get started). From a technical point of view, in a shared account, all your websites will be accessed through a single ftp access, and managed from a single control panel. This is obviously not good if you want to resell hosting to different individuals, but also if you like to keep things separate, or if you plan to sell one or more of your hosted websites in the future. In this case choose a reseller account. All your websites will still share the same IP, the same resources (disk space, bandwidth etc.), but they will each have separate ftp accesses, and each of them will have an unique control panel (usually a CPanel. I assume throughout the article that we are discussing UNIX hosting). The reseller account (the domain that you will be using to open your reseller account) will also have, besides a CPanel, its own control panel (WHM, Web Host Manager), from which you can configure and control all your domains resources, permissions and so on.

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Let’s make an example also from a financial point of view. A popular hosting company, HostGator, offers shared hosting starting at .95/month for unlimited domains, and also reseller hosting, still for unlimited domains, three times dearer, at .95/month. To make things more confusing, the shared hosting package promises unlimited disk space and unlimited bandwidth, while with the more expensive reseller hosting both disk space and bandwidth are clearly limited. One may think that it would be better to purchase the shared hosting, when in fact, for the reasons mentioned above, for many it may not. For one, promising “unlimited” space and speed, like many hosts do, does not make much sense, because, of course, they are both limited (an hard is an hard disk, can’t be “unlimited”!). But since they know and hope that by yourself you will never be able to be using much capacity, “overselling” disk space and bandwidth has become quite common. The lower price for the shared hosting is probably because it is much easier for them to set-up and maintain a shared account vs a reseller’s. Then again other hosts offer reseller hosting cheaper than shared hosting, so just look around. In any case, unless you are going to use multiple domains for strictly personal use – like having more than one blog etc. – going with the reseller account would be more convenient, but not just from a financial point of view. For example with a reseller hosting you also have the opportunity to purchase several important add-ons that can make a difference in the long term. You can add shared or dedicated IP addresses, SSL certificates, and other options. But above all, the convenience of having everything separate and under control with a single WHM panel can’t be underestimated. As said, if you plan to resell hosting this is the only solution, and the beauty of this is also that you will be able to provide your own unique nameservers (not so with a shared account), so in the eyes of the clients you will look like you are the actual host (meaning, to keep the HostGator example, that if you get a reseller account from them, and use your own nameservers, your own customers will never see the word HostGator anywhere, not even at WhoIs. Of course when you resell hosting you will be the one in charge of support towards your own customers).

So how do you proceed to start your very own multi-domains or web hosting company? First thing you want to do is pick a reputable registrar, create an account and purchase a domain that will be your hosting domain, for example let’s call it myhost dot com. Next, purchase a reseller hosting account from an also reputable host, usually you will be charged monthly for this. You will have to indicate your hosting domain, as per example, myhost dot com. After the usual create account, choose username, password etc. and of course payment, you will receive an email with your details. Generally these will confirm and include the type of plan you purchased, the domain name, login details, your panels (i.e. myhost dot com/whm and myhost dot com/cpanel) and IP address (for 1-2 days you will be using http “IP address” in numeral form rather than http myhost dot com, i.e. until the propagation is completed — see below). You will also be given ftp details, and you own mail servers, usually in the form mail.myhost.com. The last important thing will be your own nameservers, which generally are in the form of dns1.myhost.com and dns2.myhost.com. You must register these nameservers at your domain registrar before they will function. These nameservers will be used for all domains hosted in your reseller account. So go back to the registrar and log into your administration panel where you will be able to set the nameservers for myhost dot com. As said these brand new nameservers need to propagate so it may take a couple of days for everything to work properly. Of course, do not forget that for every domain under your hosting (including the hosting domain myhost dot com), you need to set up an account in your WHM. To do so simply login into your WHM with the username and password provided. You will probably get an “Untrusted Certificate” warning, which for the first time you login is normal, just click continue. Once in the WHM you will see Create Account on the left. But before that, you may want to create a few nice “hosting packages”. These are used to define and limit usage for each domain that will be hosted under your hosting service. To create packages just click Add a Package and create a few, such as for example Personal, Business and so on, with different quotas (there should be some pre-made anyway). These packages should reflect the subscription levels that you might be selling as a host. After that click Create Account and pick one of the packages. So to recap: buy a domain, set your own nameservers (at the registrar), create an account for the domain (at your hosting site/whm). Done. You will be using the WHM (from myhost dot com only) to create and manage accounts, and each domain’s CPanel for basically maintenance and (important) details. To do so, type myhost dot com/cpanel and navigate through the many options. First thing you may want to create one or more email addresses, but you can also setup forwarders, make backups, create SQL databases (for WordPress etc.), check statistics, usage, manage files, Cron jobs and much more. CPanels usually come with Fantastico that will allow you to easily install a multitude of scripts, like blogs, content management systems etc.

Having multiple websites does not need to cause headaches. Make sure to have your mind clear on what you want first, and find reputable hosts and registrars. Keep things nice and slowly at first, and tidy, for example with a folder on your computer for each of your domains, where you can save details, backups, your notes, hosting renewal dates and so on. With a reseller account you also have the exciting opportunity to get a first step in the hosting business, or web design, or provider of turnkeys websites, with a very low initial investment. There are not many opportunities on the market to achieve something like this these days.

Key Factors to Find Resource BottleNeck in Linux Server Overloading

24.08.2011 (5:33 pm) – Filed under: Uncategorized ::

It’s very common, despite of the affordable hardware, to have load issues on the server. There can be a number of reasons for high load on the server such as, inadequate RAM/CPU, slower hard disk drives, or just unoptimized software. This article will help you identify what’s the bottleneck and where do you need to invest on. Please, however, do not take it as a replacement of professional advice/service. You should always seek professional service if you can afford the costs associated.

I) First of all, are you really in trouble?

Usually people look for load in control panels, using “uptime” or “top” command. You can probably execute the “uptime” command in your root shell to find out what’s the load, but I would like you to use “top” for the moment (pretty please). This will help you identify how many CPUs are being reported*. You should be able to see something like cpu00, cpu01, etc.
A load of ~1 for each cpu is reasonable. For example, you’re fine if the load’s 3.50 and you have 4 CPUs.

Another thing to consider while looking at the load via uptime or top, is to understand what it shows. For instance: (on a 2HT cpus server, reported as 4)

18:30:55 up 17 days, 5:17, 2 users, load average: 4.76, 2.97, 2.62

The first part (3.76) shows the load average in the last 5 mins, while the second (2.97) and third (2.62) shows averages of 10 and 15 mins respectively. It’s probably a spike here which I wouldn’t be too worried about (a bit carefree?), but if you are, then just read on!

Pretty happy about how you were able to identify that your server is really overloaded? Sorry to hear that, but you never know because sometimes servers are able to handle much more load than the load shown. The load averages aren’t so accurate afterall and cannot always be the ultimate deciding factor. Confused? It was just some technical information you don’t need to be so bothered about. Move ahead if your loads are something to worry over.

* note the usage of term “reported”. I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.

II) Where’s the problem?

To identify the problem, you need to run a series of logical tests (Ok, it isn’t as scary as it may sound). All you need is some free time, probably 30-45 mins, and root access to your server (expect no magic ;) ). Ready to start? Let’s go!

Note: Perform the checks multiple times, to reach a fine conclusion.

1. Check for RAM (most common bottleneck!).

# free -m

The output should look similar to this:

# free -m

total used free shared buffers cached
Mem: 1963 1912 50 0 28 906
-/+ buffers/cache: 978 985
Swap: 1027 157 869

Any reaction like, “Ohh Gosh, almost all the RAM is used up.”? Don’t panic. Have a look at the buffers/cache that says “985″ mb of RAM is still free in buffers. As long as you have enough memory in the buffers, and your server isnt’t using much swap, you’re pretty fine on RAM. Your server starts to use SWAP (much like Pagefile), which is part of your disk mapped as memory but it is comparatively very slow and can furthur slower down your system if you have a busy hard disk (which I doubt you wouldn’t if you’re using so much RAM). In short, at least 175mb available in buffers and no more than 200mb swap.

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If RAM is the issue, you should probably look into optimizations on your PHP/Perl scripts, MySQL queries + server, and Apache.

2. Check if I/O (input/output) usage is excessive

If there are too many read/write requests on a single hard disk drive, it will become slow and you’ll have to upgrade it to a faster drive (with more RPM and cache). The alternate option to a single faster drive is splitting the load onto multiple drives by spreading the most request content onto multiple drives, which can be easily accomplished using “symlinks” (soft links to files/folders). To identify, if your I/O issue is making your server lag:

# top

Read the output under “iowait” section, for each CPU. In ideal situations, it should be near to 0%. If you do however are scrutinizing at time of a load spike, consider rechecking these values multiple times to reach a fine conclusion. Anything above 15% is worrysome. Next, you can check the speed of your hard disk drive to see if it’s really lagging:

If you do know your hard disk exists on /dev/sda or /dev/hda, just perform the following. Or execute “df -h” command to check which is the drive that your data resides on.

# hdparm -Tt /dev/sda

The output:

/dev/sda:

Timing cached reads: 1484 MB in 2.01 seconds = 739.00 MB/sec

Timing buffered disk reads: 62 MB in 3.00 seconds = 20.66 MB/sec

It was awesome at the buffer-cache reads, most probably because of the disk’s onboard cache, however, buffered disk reads is just at 20.66 MB / sec. Anything below 25MB is something you should worry about.

3. CPU power is all consumed?

# top

Check the top output to find out if you’re using too much CPU power. You should be looking the value under idle besides each CPU entry. Anything below 45% is something you should really worry about.

III) Problem identified, What’s the solution?

To wrap it up, let me offer a few solutions for each problem:

A global solution to all problems is to optimize MySQL, and Webserver including PHP/Perl scripts and queries. Or the least you can do is to optimize Apache and MySQL server parameters to perform better.

1. Too much CPU usage

In “ps -auxf” or “top” look for processes that use too much CPU. If it’s HTTP or MySQL, you better optimize your scripts and queries, if possible. In most cases, it’s extremely difficult to optimize all the scripts and queries and a better option is to just go for a CPU change/upgrade. A dual CPU should perform better, but what kind of upgrade you’re looking for depends on your current CPU.

2. RAM’s all exhausted

It’s like you’re in the same kind of situation as the CPU one. Optimize HTTP, MySQL, scripts etc. or go for a RAM upgrade. You may install Opcode cache softwares like APC (from Pear) for PHP to make it perform better while decreasing the load.

3. Disk’s all used (eh, I don’t mean space)

Here you either have to go for a faster disk like SATA over normal IDE or SCSI over SATA. Well, I was just speaking generally. You have consider factors like RPM and cache to end up going for an upgrad that’s worth it. The second option is to get multiple drives of the same class and spread the load across drives. One common methodology is to serve MySQL from a second drive.

IV) Conclusion

That wasn’t of much help? My article might be flawed, ahh, excuse me. It’s my first article and this thing really consumed quite a few braincells of mine. That’s a bit personal isn’t it? Let’s get back to business.

FYI, In the example, the problem was with the I/O usage and hard disk getting slow.

A guide can never be complete in itself or offer you everything you will need to reach upto expert level (you need to keep learning to reach that level). Whenever in doubt, please DO hire experts to look over your server. Somehow, if you don’t have the money to spend, you’re stil safe! You can head to our Server optimization help section to get help with your server optimization.

Asad N

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23.08.2011 (5:33 pm) – Filed under: Uncategorized ::

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The reason for the high affordability of cheap hosting provider is not because they the shared web hosting server. Sometimes size matters also, because cheap web hosts offer limited amounts of disk space for the various features they offer. Cheap web hosts heavy traffic cannot be assured to benefit from a cheap web hosting. In general terms, cheap web hosting is simply a low price hosting package offered by web hosts for webmasters or businesses that do not need high amounts.