Deletion events are failing. If left uncorrected, the repository may eventually become full. The following error is identified in the Core's AppRecovery logs:
ERROR 2015-09-08T08:19:20  - Replay.Core.Implementation.DeferredDelete.Implementation.IndexFileDeleteJob ()
Job 'Deleting index RPFS file' failed
System.AggregateException: One or more errors occurred. ---> System.IO.IOException: The device is not ready.