Merge pull request #8359 from stolostron/jcberger-26088-AWS

https://issues.redhat.com/browse/ACM-26088

Author: jc-berger

business_continuity/backup_restore/backup_install.adoc

@@ -29,9 +29,9 @@ To use the backup and restore operator, you must set up hub clusters. To set up
 
 To enable the backup operator for your active and passive hub clusters, complete the following steps:
 
-. Enable the cluster backup and restore operator, `cluster-backup`, by completing the following steps: 
-.. Update the `MultiClusterHub` resource by setting the `cluster-backup` parameter to `true`. If this hub cluster does not have the AWS Security Token Service (STS) option enabled, the OADP operator is also installed in the same namespace with the backup component. 
-.. For hub clusters where the STS option is enabled, you must manually install the OADP operator. 
+. Enable the cluster backup and restore operator, `cluster-backup`, by updating the `MultiClusterHub` resource and setting the `cluster-backup` parameter to `true`. 
+.. For the {oadp} (OADP) operator installation, the automatic installation is the default. In this default situation, the OADP operator automatically installs in the same namespace where you enabled the `cluster-backup` component. 
+.. In certain cases, you must manually install the OADP operator. If your hub cluster runs on AWS cloud and uses AWS Security Token Service (STS) authentication, you must manually install the OADP operator before you enable the backup component. The STS configurations require an Amazon Resource Name (ARN) token that you must configure during the OADP operator installation. 
 . Ensure that the restore hub cluster uses the same {acm-short} version that the backup hub cluster uses. You cannot restore a backup on a hub cluster with a version earlier than the one used by the backup hub cluster. 
 . Manually configure the restore hub cluster by completing the following steps:
 .. Install all operators that are installed on the active hub cluster and in the same namespace as the active hub cluster.