How to replace an Amazon EC2 instance running CentOS and Plesk

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In this video I will show you how you can replace a running EC2 instance with a larger one. You may want to do this if you find that you need bigger and better hardware to serve your website, or to move from a development system to a more powerful production system.

In this example my EC2 instance is an M1 Small which hosts a single WordPress website with about 500-700 hits per day. In the screencast I’m replacing it with an M3 Medium instance which really isn’t big enough to cope with the traffic.

I have since found that a C3 Large is a better fit. The total downtime to perform this depends on how big your current instance is. You can bring up a larger instance alongside a smaller one and then swap the Elastic IP over for minimum downtime.

Links referenced in this video:

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