PVC expansion-RoF limitation

Author: kaitlynmichael

content/operate/kubernetes/re-clusters/auto-tiering.md

@@ -43,6 +43,8 @@ To deploy a Redis Enterprise cluster (REC) with Auto Tiering, you'll need to spe
 
 {{<warning>}}Switching between storage engines (`speedb` and `rocksdb`) requires guidance by Redis Support or your Account Manager.{{</warning>}}
 
+{{<warning>}}PVC expansion is not supported when using Auto Tiering. Do not enable `enablePersistentVolumeResize` in the REC `persistentSpec` if you are using `redisOnFlashSpec` as this will result in conflicts. {{</warning>}}
+
 Here is an example of an REC custom resource with these attributes:
 
 ```YAML

content/operate/kubernetes/re-clusters/expand-pvc.md

@@ -33,6 +33,8 @@ This process involves deleting and recreating the REC StatefulSet with a larger
 
 {{<warning>}} OpenShift users should be aware that (`ClusterResourceQuota`) can limit the PVC expansion. Check your quota before resizing using `oc describe clusterresourcequota <quota-name>`.{{</warning>}}
 
+{{<warning>}} PVC expansion is not supported when using Auto Tiering (Redis on Flash). Do not enable `enablePersistentVolumeResize` if your REC uses `redisOnFlashSpec` as this will result in conflicts. {{</warning>}}
+
 ## Expand REC PVC
 
 1. Enable the REC persistent volume resize flag.

content/operate/kubernetes/release-notes/7-22-0-releases/_index.md

@@ -24,6 +24,8 @@ Redis Enterprise for Kubernetes 7.22.0 includes bug fixes, enhancements, and sup
 
 - **When changing the REDB field `spec.modulesList`, version might be upgraded to latest, even if a different version is specified.** To prevent the upgrade to latest, set  `spec.upgradeSpec.setModuleToLatest` to `false` before upgrading to 7.8.2-6.
 
+- **PVC expansion is not supported when using Redis on Flash (Auto Tiering) (RED-165770)** Do not enable `enablePersistentVolumeResize` if your REC uses `redisOnFlashSpec` as this will result in conflicts.
+
 - **Missing endpoint for admission endpoint (rare) (RED-119469)** Restart the operator pod.
 
 - **The REDB “redisVersion” field can’t be used for memcached databases(RED-119152)**