--- charts-original/templates/statefulset.yaml
+++ charts/templates/statefulset.yaml
@@ -27,7 +27,7 @@
         checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
         checksum/dashboards-json-config: {{ include (print $.Template.BasePath "/dashboards-json-configmap.yaml") . | sha256sum }}
         checksum/sc-dashboard-provider-config: {{ include (print $.Template.BasePath "/configmap-dashboard-provider.yaml") . | sha256sum }}
-  {{- if or (and (not .Values.admin.existingSecret) (not .Values.env.GF_SECURITY_ADMIN_PASSWORD__FILE) (not .Values.env.GF_SECURITY_ADMIN_PASSWORD)) (and .Values.ldap.enabled (not .Values.ldap.existingSecret)) }}
+  {{- if and (or (and (not .Values.admin.existingSecret) (not .Values.env.GF_SECURITY_ADMIN_PASSWORD__FILE) (not .Values.env.GF_SECURITY_ADMIN_PASSWORD)) (and .Values.ldap.enabled (not .Values.ldap.existingSecret))) (not .Values.env.GF_SECURITY_DISABLE_INITIAL_ADMIN_CREATION) }}
         checksum/secret: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
 {{- end }}
 {{- with .Values.podAnnotations }}
@@ -39,11 +39,13 @@
   - metadata:
       name: storage
     spec:
+{{- $_ := required "Must provide at least one access mode for persistent volumes used by Grafana" .Values.persistence.accessModes }}
+{{- $_ := required "Must provide at least one access mode for persistent volumes used by Grafana" (first .Values.persistence.accessModes) }}
       accessModes: {{ .Values.persistence.accessModes }}
       storageClassName: {{ .Values.persistence.storageClassName }}
       resources:
         requests:
-          storage: {{ .Values.persistence.size }}
+          storage: {{ required "Must provide size for persistent volumes used by Grafana" .Values.persistence.size }}
       {{- with .Values.persistence.selectorLabels }}
       selector:
         matchLabels: