Peer review and SME review

Author: apurvabhide17

backup_and_restore/application_backup_and_restore/backing_up_and_restoring/backing-up-applications.adoc

@@ -20,9 +20,13 @@ endif::openshift-rosa,openshift-rosa-hcp[]
 
 ifndef::openshift-rosa,openshift-rosa-hcp[]
 * The `Backup` CR creates backup files for Kubernetes resources and internal images on S3 object storage.
-* For an on-cluster backup, applications and persistent data are fully backed up. This type of backup is fast and can be executed quite often. But the data is vulnerable to cluster or storage outages. You can use CSI volume snapshots.
-* For an off-cluster backup, the Openshift object data and persistent data are backed up and moved from a cluster to ensure that a cluster outage does not impact the backup. This type of backup is slower as compared to a on-cluster backup, and should be executed less often than on-cluster. You can use CSI Data Mover backup and Kopia FSB.
-* Executing a single backup that performs both on-cluster and off-cluster backup is not possible.
+
+* In an on-cluster backup, you back up the persistent volume data within the cluster. This type of backup is fast, and you can execute it frequently; however, the data is vulnerable to cluster or storage outages. You can use Container Storage Interface (CSI) volume snapshots for an on-cluster backup.
+
+* In an off-cluster backup, you back up the Openshift object data and persistent data and move them from a cluster to ensure that a cluster outage does not impact the backup. This type of backup is slower than an on-cluster backup; and therefore you should execute it less frequently than an on-cluster backup. You can use CSI Data Mover backup and Kopia File System Backup (FSB) for an off-cluster backup.
+
+* You can only execute a single backup that performs either an on-cluster or off-cluster backup.
+
 * If your cloud provider has a native snapshot API or supports CSI snapshots, the `Backup` CR backs up persistent volumes (PVs) by creating snapshots. For more information about working with CSI snapshots, see xref:../../../backup_and_restore/application_backup_and_restore/backing_up_and_restoring/oadp-backing-up-pvs-csi-doc.adoc#oadp-backing-up-pvs-csi-doc[Backing up persistent volumes with CSI snapshots].
 
 For more information about CSI volume snapshots, see xref:../../../storage/container_storage_interface/persistent-storage-csi-snapshots.adoc#persistent-storage-csi-snapshots[CSI volume snapshots].