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K8s: PVC expansion-RoF limitation #1902

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merged 2 commits into from
Jul 31, 2025
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K8s: PVC expansion-RoF limitation #1902

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798378a
PVC expansion-RoF limitation
kaitlynmichael Jul 30, 2025
040380f
add to all relevant RNs
kaitlynmichael Jul 31, 2025
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2 changes: 2 additions & 0 deletions content/operate/kubernetes/re-clusters/auto-tiering.md
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Expand Up @@ -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
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2 changes: 2 additions & 0 deletions content/operate/kubernetes/re-clusters/expand-pvc.md
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Expand Up @@ -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.
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2 changes: 2 additions & 0 deletions content/operate/kubernetes/release-notes/7-22-0-releases/_index.md
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Expand Up @@ -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)**
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