Merge pull request #77507 from alishaIBM/4.16-recommendation

OCP 4.16: OCPBUGS-32290-add a recommendation

Author: mburke5678

modules/rhcos-enabling-multipath-day-2.adoc

@@ -19,6 +19,11 @@ On {ibm-z-name} and {ibm-linuxone-name}, you can enable multipathing only if you
 ====
 // Add xref once it's allowed.
 
+[IMPORTANT]
+====
+When a {product-title} {product-version} cluster is installed or configured as a post-installation activity on a single VIOS host with "vSCSI" storage on {ibm-power-name} with multipath configured, the CoreOS nodes with multipath enabled fail to boot. This behavior is expected, as only one path is available to the Node.
+====
+
 .Prerequisites
 * You have a running {product-title} cluster that uses version 4.7 or later.
 * You are logged in to the cluster as a user with administrative privileges.