Merge pull request #56518 from xenolinux/planning-maximums

OCPBUGS#1653: Rapidly changing clusters can lower the maximum practical size of a cluster

Author: mburke5678

scalability_and_performance/planning-your-environment-according-to-object-maximums.adoc

@@ -12,6 +12,11 @@ These guidelines are based on the largest possible cluster. For smaller clusters
 
 In most cases, exceeding these numbers results in lower overall performance. It does not necessarily mean that the cluster will fail.
 
+[WARNING]
+====
+Clusters that experience rapid change, such as those with many starting and stopping pods, can have a lower practical maximum size than documented.
+====
+
 include::modules/openshift-cluster-maximums-major-releases.adoc[leveloffset=+1]
 
 include::modules/openshift-cluster-maximums-environment.adoc[leveloffset=+1]