# Modifying the Backup Content in an Amazon Redshift Cluster Group

You can change the clusters that you want to back up in an Amazon Redshift cluster group. You can also add a rule to discover the clusters based on a cluster name or a tag name associated with the cluster. All the clusters that match the rule are added to the cluster group automatically.

## Procedure

1. From the Command Center navigation pane, go to Protect > Databases.

   The database overview page appears.

2. On the Instances tab, from the list of Instances, select Cloud DB.

   The Instances page for cloud databases appears.

3. Click the instance.

   The instance page appears.

4. Click the Cluster groups tab.

   The Cluster group details page appears.

5. In the Cluster group section, click the + of the cluster group that you want to modify.

   The Amazon Redshift content page appears.

   - To select specific Redshift clusters or regions, complete the following steps:

     1. Click Add clusters.

        The Browse backup content dialog box appears.

     2. Select or clear the clusters or regions to include or exclude from the backups.

     3. Click SAVE.

   - To use a rule based on cluster name, complete the following steps:

     1. Click Add cluster rule.

        The Add cluster rule dialog box appears.

     2. From the Select rule for list, select ClusterRule.

     3. From the Which matches with list, select the rule that you want to apply. For example, to discover clusters that match a specific name, select Equals.

     4. In the Name box, type the keyword on which you want to match the cluster name.

     5. To close the Add cluster rule dialog box, click SAVE.

     6. To view the list of clusters that match the cluster rule criteria you selected, click PREVIEW.

   - To use a rule based on a tag name, complete the following steps:

     1. From the Select rule for list, select TagRule.

     2. In the Tag name box, type the tag name on which you want to discover the clusters.

     3. From the Which matches with list, select the rule that you want to apply. For example, to discover clusters that match a specific tag value, select Equals.

     4. In the Tag value box, type the tag value on which you want to match the tag name for the clusters.

     5. To close the Add cluster rule dialog box, click SAVE.

     6. To view the list of clusters that match the cluster rule criteria you selected, click PREVIEW.

6. Click SAVE.

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