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Amazon Redshift
Management Guide (API Version 2012-12-01)

Managing Cluster Subnet Groups Using the Console

The section explains how to manage your cluster subnet groups using the Amazon Redshift console. You can create a cluster subnet group, manage an existing one, or delete one. All of these tasks start from the cluster subnet group list. You must select a cluster subnet group to manage it.

In the example cluster subnet group list below, there is one cluster subnet group. By default, there are no cluster subnet groups defined for your AWS account. Because my-subnet-group is selected (highlighted), you can edit or delete it. The details of the selected security group are shown under Cluster Subnet Group Details.

Creating a Cluster Subnet Group

You must have at least one cluster subnet group defined to provision a cluster in a VPC.

To create a cluster subnet group

  1. Sign in to the AWS Management Console and open the Amazon Redshift console at https://console.aws.amazon.com/redshift/.

  2. In the navigation pane, click Security.

  3. On the Subnet Groups tab, click Create Cluster Subnet Group.

  4. In the Create Cluster Subnet Group dialog box, add subnets to the group.

    1. Specify a Name, Description, and VPC ID for the cluster subnet group.

    2. Add subnets to the group by doing one of the following:

      • Click add all the subnets link. or

      • Use the Availability Zone and Subnet ID boxes to choose a specific subnet and then click Add.

      The following example shows a cluster subnet group specified with one subnet group.

  5. Click Yes, Create.

    The new group will be displayed in the list of cluster subnet groups.

Modifying a Cluster Subnet Group

To modify a cluster subnet group

  1. Sign in to the AWS Management Console and open the Amazon Redshift console at https://console.aws.amazon.com/redshift/.

  2. In the navigation pane, click Security.

  3. On the Subnet Groups tab, in the cluster subnet group list, click the row of the group you want to modify, and then click Edit.

    In the example below, subnetgroup2 is the cluster subnet group we want to modify.

  4. In the Cluster Subnet Group Details, take one of the following actions.

    To... Do this...
    Add one or more subnets to the group.

    Select an individual subnet by using the Availability Zone and Subnet ID boxes or click add all the subnets.

    Click Save.

    Remove a subnet from the group.

    In the lists of subnets in use for the group, click Remove next to the subnet to remove.

    Click Save.

Deleting a Cluster Subnet Group

You cannot delete a cluster subnet group that is used by a cluster.

To delete a cluster subnet group

  1. Sign in to the AWS Management Console and open the Amazon Redshift console at https://console.aws.amazon.com/redshift/.

  2. In the navigation pane, click Security.

  3. On the Subnet Groups tab, in the cluster subnet group list, click the row of the group you want to delete.

    In the example below, my-subnet-group is the cluster subnet group we want to delete.

  4. In the Delete Cluster Subnet Group dialog box, click Delete.