Merge pull request #43997 from bmcelvee/OSDOCS-3252

OSDOCS-3252: Clarify that etcd is not backed up for STS

Author: bmcelvee

modules/rosa-policy-incident.adoc

@@ -55,7 +55,7 @@ All {product-title} clusters are backed up using AWS snapshots. Notably, this do
 .2+|Full object store backup, all SRE-managed cluster PVs
 |Daily
 |7 days
-.2+|This is a full backup of all Kubernetes objects, such as etcd, and all SRE-managed PVs in the cluster.
+.2+|This is a full backup of all Kubernetes objects, such as etcd, and all SRE-managed PVs in the cluster. Etcd backup does not apply to STS clusters.
 
 |Weekly
 |30 days
@@ -64,7 +64,7 @@ All {product-title} clusters are backed up using AWS snapshots. Notably, this do
 |Full object store backup
 |Hourly
 |24-hour
-|This is a full backup of all Kubernetes objects, such as etcd. No PVs are backed up in this backup schedule.
+|This is a full backup of all Kubernetes objects, such as etcd. No PVs are backed up in this backup schedule. Etcd backup does not apply to STS clusters. 
 
 |Node root volume
 |Never