Description of problem:
It's not user friendly that when requesting storage over the capacity limitation(1GB) in OSO during persistentvolumeclaim created, the user doesn't get any notification or warning message, only pvc status is pending.  

Version-Release number of selected component (if applicable):
dev-preview-int

How reproducible:
Always


Steps to Reproduce:
1. Create a project named "test"
2. Create pvc and check pvc status by following command:
[dongm@dhcp-136-41 tmp]$ cat 5.yaml 
apiVersion: "v1"
kind: "PersistentVolumeClaim"
metadata:
  name: "claim-over-limit"
spec:
  accessModes:
    - "ReadWriteOnce"
  resources:
    requests:
      storage: "1.1Gi"


[dongm@dhcp-136-41 tmp]$ oc create -f 5.yaml 
persistentvolumeclaim "claim-over-limit" created
[dongm@dhcp-136-41 tmp]$ oc get pvc
NAME               STATUS    VOLUME         CAPACITY   ACCESSMODES   AGE
claim-over-limit   Pending                                           5s
claim4             Bound     pv-aws-exfj7   500M       RWO           1m

[dongm@dhcp-136-41 tmp]$ oc describe pvc claim-over-limit
Name:		claim-over-limit
Namespace:	test
Status:		Pending
Volume:		
Labels:		<none>
Capacity:	
Access Modes:

Actual results:
persistentvolumeclaim created successfully, but the status is pending

Expected results:
the user is better to get any notification or warning message when requesting storage over the capacity limitation(1GB).

Additional info: