How do I purchase an Amazon EC2 Reserved Instance that reserves capacity in a specific Availability Zone?
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I want to make sure that an instance type in a particular Availability Zone is available when I need it. How do I purchase an Amazon Elastic Compute Cloud (Amazon EC2) Reserved Instance that does that?
By default, newly purchased Reserved Instances don't reserve capacity.
To purchase a Reserved Instance that reserves capacity for a specific Availability Zone, do the following: