Deleting a cluster subnet group for a provisioned cluster
When you're done using a cluster subnet group, you should clean up by deleting the group. The following procedure walks you through the steps to delete a subnet group for a provisioned cluster.
To delete a cluster subnet group
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Sign in to the Amazon Web Services Management Console and open the Amazon Redshift console at https://console.amazonaws.cn/redshiftv2/
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On the navigation menu, choose Configurations, then choose Subnet groups. The list of subnet groups is displayed.
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Choose the subnet group to delete, then choose Delete.
Note
You can't delete a cluster subnet group that is used by a cluster.