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Posts Tagged ‘Hosting’

10 tips on choosing a web host

by: Chris Hudson
16 October, 2009

When you begin to look for a host for your website or dedicated server you are immediately assailed by numbers; hard drive space, CPU speed, amount of dedicated RAM, bandwidth and more. Hosting companies today try to sell you hosting on the back of the technical specification.

It’s easy to believe that a good understanding of maths is all you’d need to pick the best web server hosting company. However, to make a good choice you need to resist the urge to leap for the best spec offered at the lowest price.

In fact, the numbers are just a minor part of the equation that you have to solve to find a good website or server host. The human element of the hosting company and the written agreement between yourself and the web hosting company are equally as important.

Here’s what to consider when choosing a web host:

  • Service levels - What you get for your money is largely determined by your host’s Service Level Agreement. Make sure you read it BEFORE things go wrong, so you know what will happen to correct a problem and what rights you have.
    Beware, I’ve seen a number of UK companies offering shared web hosting WITHOUT an SLA - you should avoid such offerings entirely. It’s like buying a car without a guarantee that it’ll even start up!
    For more info on Service Level Agreements click the link.
  • Tech support - You need to find out if support is 24/7, provided by phone and/or email. Is the telephone support number a premium rate line? Are the support staff trained engineers or is it outsourced to an Indian call centre? Here at Intrahost our lines are manned 24/7 by qualified engineers - in fact, they also provide the telephone IT support for some of the UK’s biggest companies.
  • Contract length - Beware of web hosting companies that tie you into long-term contracts for simple hosting like shared web hosting or VPS. Where’s their incentive to provide you with good service if you cannot terminate the agreement easily. Intrahost’s agreements below dedicated server level are from month-to-month so you are not tied into a long-term deal.
  • Scalability - This is tied to the flexibility of your agreement with your web hosting company. If you need to change your hosting requirements how easy is it to do so? Is there a financial penalty for doing so?
  • Nature of your hosting company - Is your hosting company a real host with their own servers in a dedicated data centre or are they merely a one-man band, reselling space on someone else’s servers that could be located anywhere in the world?  Are you comfortable with your info being stored on a web server in say, Russia?
    Do they have the expertise to solve a problem or are they relying on a supplier’s engineers? What happens if the one-man band suffers illness? Will he be there at 3am or during public holidays?
    Perhaps worst of all, what if the host company goes under? Will your data remain accessible in that event? What happens if the server is repossessed by a leasing company or the data centre shuts off connectivity or power?
  • Location - often overlooked, but you are far better off having a hosting company in the same country as your own location. If you are in the UK you have a raft of consumer legislation and local government departments dedicated to ensuring you get a fair deal for your money. All of which is lost if you go outside the UK. Even if you choose to host in advanced countries like the USA do you really want to try and resolve a legal difficulty from three thousands miles away in another time zone?
    Another reason for choosing a local host is that search engines like Google are becoming far more localised in creating their SERPs, and the physical location of your web server can play a major part in the decision by the search engine of when to display your results.
  • Data centre qualities: The web host’s servers must be housed in data centres rather than, for example, their own offices. The UK data centres are graded and you are looking for Tier 2 or greater. The grading represents qualities like:
    • Resilience - In order to guarantee 100% network uptime the centre needs at least two connections to the internet
    • Security - Has the data centre taken fire and intruder security measures?
    • Power - has it alternative power supplies? Usually UPS and diesel generators.
  • Performance monitoring - you should try to obtain performance data on your proposed web host - this is often displayed on their website
  • Testimonials - these are used by many sites; don’t be afraid to look up the people providing testimonials and ask them to confirm they still feel the same way about the host. Look up their website and gauge for yourself the end user experience of a website served by your proposed hosting company. I’ve lost count how many times I’ve looked up testimonials and received a 404 error page!
  • Guarantee - the SLA should offer a money-back, uptime guarantee - if there is no money-back then it’s NOT a GUARANTEE is it? Intrahost’s SLA contains its 99.99% server uptime guarantee.

When is a Virtual Dedicated Server better than a Dedicated Server?

by: Chris Hudson
22 July, 2009

When is a virtual dedicated server better than a dedicated server?

The instinctive answer is “never!”

How could it be anything else? We are computer users, we are logical people and logically the answer is, “Never!”

Otherwise, why have dedicated servers the first place?

Well, after I published the article on the benefits of virtual dedicated servers I received an interesting email.

My article, basically, spoke of virtual dedicated servers as being a very cost-effective way of achieving much of the operational benefit of having your own dedicated server but without the attendant cost.

The implication was there that the VDS, or VPS as it is also known as, is a compromise, albeit a very good one, between performance/features and monthly cost.

For the vast majority of server users that difference, that compromise, is almost unnoticeable, unlike the very big saving to their bank balance!

However, I was reminded by the email that there is a way in which a VDS can be BETTER than a dedicated server!

Confused?

Well, the veracity of that statement, essentially, hangs upon how your hosting company sets up its VDS/VPS.

At Intrahost, rather than individual physical servers hosting several virtual dedicated servers on their internal hard drives, the set-up is very different. Here, the physical servers are set-up in “clusters” and the data storage is not on individual hard drives in each server, but rather in a shared disk array (or storage area network - SAN).

Now, I don’t want to become too technical here as the purpose of our blog is to help clients, newcomers and the just-plain-curious to better understand our hosting industry, not to blind them with science, technology or acronyms!

But essentially there is a double benefit to our “Intrahost method” here.

Firstly, as our physical servers are “clustered” it  means that if one physical server went down, other servers in the cluster would automatically begin acting as a physical host server for the virtual dedicated servers that were allocated to the, now, ex-server! But this resilience would be of no benefit if the data of the VDSs was stored on the, now, inaccessible hard drives of the failed physical server.

This is where the second advantage of the Intrahost method kicks in. As the virtual dedicated servers themselves are stored on the SAN they are not affected by the loss of the defective physical server’s hard drives and so the virtual dedicated servers and all their data will continue to be available to end users.

Furthermore, when it comes to replacing the faulty server it is a quicker and easier job as the hard drives don’t have to be removed and so there is no interruption to the service received by the customers who were being served by the faulty server.

Now compare that to a dedicated server, with everything stored internally.

If the dedicated server goes down you are out of the game until engineers get it going again or, alternatively, allocate you another server, if the malfunction is catastrophic.

But if the dedicated server is down and, therefore, you cannot access your hard drive (and the data thereon) have you got a recent backup that you can install on a new dedicated server? Do you back up your dedicated server yourself or are you paying extra for a fully managed service?

So, basically, a VDS can have a higher availability (aka uptime) than a dedicated server.

Therefore,  if your hosting company, like Intrahost,  is utilising clusters of hosts and a storage area network, a virtual dedicated server, far from being a compromise is, in fact, a superior, hardier beast in terms of availability than your stand-alone, expensive, thoroughbred dedicated server.

If your VDS hosts your business website or data files do you really want to be gambling everything, literally, on the survival of just one server?

Consequently, if you have a VDS with another hosting company maybe it is worth checking whether your VDS benefits from host clusters and a SAN or whether it is risking all on just one physical server. If not, you know who to call…

What happens if I reach my disk limit?

by: Chris Hudson
10 July, 2009

In short, you wont be able to add any additional files, and log file creation will be hindered potentially affecting the performance of any websites hosted within your package.

Before this limit is reached a warning email will be sent to you to notify you of the even. Keeping track of log files and any ftp folders you use should prevent this from being too much of an issue. If it does become an issue review our knowledge base, or contact our support teams to discuss your options.

Of course, you can upgrade your account to one that provides more disk space - our upper limit on UK web host accounts is 20Gb (20,000Mb).

Is there a limit to how many domains I can host on one account?

by: Chris Hudson

NO, there is NO LIMIT on the number of domains you can host on your Intrahost web host account.

In practice, there is a limit to the disk space provided with each account and as each web site would take up more space eventually you would run out of space.

However, you can simply upgrade to a web hosting package offering more disk space when you need it.

But please note that, for example, even our  ”value” Linux cPanel account comes with a generous allowance of 1.5Gb (1500Mb) of hard disk space.