How do I use Amazon Redshift reserved nodes? 

Resolution

Reserved node offerings apply to compute nodes that you specify when you purchase them. You can purchase reserved nodes that reserve compute capacity for your cluster at a discounted rate compared to the on-demand rates.

For more information, see Comparing pricing among reserved node offerings.

In the following scenario, you purchased four nodes of ra3.xlplus:

• You can create two clusters with two nodes each.
• Deploy one cluster with four nodes.
• Set up four clusters with one node each.

In the preceding example, the billing benefit remains the same in each scenario.

At the end of each billing cycle, Amazon Redshift automatically applies and discounts the charges for the four specified node types from your bill.

Note: AWS provides the Amazon Redshift leader node at no additional cost. Reserved node pricing applies only to compute nodes.

For more information, see Reserved Instance pricing.

Important: Make sure that the AWS Region, node type, and number of nodes match active reservations. You're charged the on-demand rate for nodes that don't match an active reservation. For more information, see How reserved nodes work.