AWS EC2: On-Demand to Reserved Instance

Completing a task in AWS for the first time usually requires research. Fortunately, moving from an On-Demand Instance to a Reserved Instance is relatively straight forward, and it saves you money.

In this short guide, I’ll show you how to move your single EC2 setup from On-Demand pricing, to the more cost savvy Reserved pricing structure.

Purchase A Reserved Instance

Although it may sound like you are purchasing a new physical machine (instance), you actually aren’t. The only change happening is payment related. There are various different payment options available. In general though, the longer you buy in, the cheaper it gets.

Although purchases of Reserved Instances are no doubt cheaper than the on-demand equivalent, it’s important to remember that they are non-refundable.

Purchasing Reserved Instance steps:

  • Sign In to the EC2 section of AWS Management Console
  • From the left hand navigation pane, click Reserved Instances
  • Click Purchase Reserved Instances
  • From the search page, select the Reserved Instance type, platform, payment option, offering class, and term length. Note that it’s important that you choose the same options as your current EC2 instance in order to ensure compatibility
  • Review your choice, confirm and pay up

Once complete, your on-demand instance billing will switch over to your chosen Reserved Instance billing.

Any questions? Leave a comment below and I’ll do my best to help.

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