Metrics Cannot Attach/Mount the Intended Storage

Issue

• Starting Metrics backup after work on the cluster and I get an error about storage:

<DATE_TIME>   <DATE_TIME>   2         hawkular-cassandra-1-7voky   Pod                                                 Warning   FailedMount        {kubelet test.example.com}   Unable to mount volumes for pod "hawkular-cassandra-1-7voky_openshift-infra(96765ee3-8c28-11e6-916f-005056a6d599)": timeout expired waiting for volumes to attach/mount for pod "hawkular-cassandra-1-7voky"/"openshift-infra". list of unattached/unmounted volumes=[cassandra-data]
<DATE_TIME>   <DATE_TIME>   2         hawkular-cassandra-1-7voky   Pod                                                 Warning   FailedSync         {kubelet test.example.com}   Error syncing pod, skipping: timeout expired waiting for volumes to attach/mount for pod "hawkular-cassandra-1-7voky"/"openshift-infra". list of unattached/unmounted volumes=[cassandra-data]
<DATE_TIME>   <DATE_TIME>   29        heapster-lszxv               Pod                     spec.containers{heapster}   Warning   Unhealthy          {kubelet test.example.com}   Readiness probe failed: The heapster process is not yet started, it is waiting for the Hawkular Metrics to start.

• Updating my cluster and metrics won't start back up
• Events indicate cassandra can't mount the volume
• Cassandra failing with error about permissions:

ERROR 20:01:35 Has no permission to create directory /cassandra_data/data