Merge pull request #71502 from mletalie/OSDOCS-9639

[OSDOCS-9639]Issue in file osd_architecture/osd_policy/osd-service-definition.adoc

Author: jab-rh

modules/sdpolicy-am-compute.adoc

@@ -9,7 +9,10 @@ Single availability zone clusters require a minimum of 2 worker nodes for Custom
 
 Multiple availability zone clusters require a minimum of 3 worker nodes for Customer Cloud Subscription (CCS) clusters, 1 deployed to each of 3 availability zones. A minimum of 9 worker nodes are required for standard clusters. These 9 worker nodes are included in the base subscription, and additional nodes must be purchased in multiples of 3 to maintain proper node distribution.
 
-Worker nodes must all be the same type and size within a single {product-title} cluster.
+[NOTE]
+====
+All worker nodes within a single {product-title} machine pool must be of the same type and size. However, worker nodes across multiple machine pools within an {product-title} cluster can be of different types and sizes.
+====
 
 Control plane and infrastructure nodes are also provided by Red Hat. There are at least 3 control plane nodes that handle etcd and API-related workloads. There are at least 2 infrastructure nodes that handle metrics, routing, the web console, and other workloads. You must not run any workloads on the control plane and infrastructure nodes. Any workloads you intend to run must be deployed on worker nodes. See the Red Hat Operator support section below for more information about Red Hat workloads that must be deployed on worker nodes.