Reality Check
It should go without saying that the infrastructure services provided by AWS will not be suitable for every circumstance or application. There are a number of things you need to consider carefully before deciding whether a full or partial move to Amazon’s virtual infrastructure is appropriate in your situation. In this section we will briefly discuss some of the common objections to making such a move and suggest counter-arguments to these objections. Our aim is not to persuade you one way or another, but to raise the issues you need to consider before you make up your own mind.
Web Services Are Dependent on a Reliable Network
The infrastructure provided by AWS is only available when you have a working Internet connection and a clear network path to the services. It is vital to have a high-speed Internet connection. If you have an intermittent or slow connection to the Internet, these services will not be a practical option. Even with a fast connection, with the fragility of networking hardware and the vagaries of Internet traffic routing, it is likely that sooner or later you will be unable to reach AWS for a brief period of time. If your application is completely dependent on AWS, this could result in downtime for your application and disruption for your customers. With these kinds of issues, it may not be possible for Amazon to help, especially if the problem is caused by network resources outside its control.
Amazon seeks to be resistant to traffic routing problems ...
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