Purchasing a reserved node offering using the Amazon CLI and Amazon Redshift API - Amazon Redshift
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Purchasing a reserved node offering using the Amazon CLI and Amazon Redshift API

You can use the following Amazon CLI operations to purchase reserved node offerings.

You can use the following Amazon Redshift API operations to purchase reserved node offerings.

You can't convert all node types to reserved nodes, and it's also possible that an existing reserved node isn't available for renewal. This might be because the node type is discontinued.