Among the symptoms are :
1. System status for the MAA is RED and says:
"A RAID check is in progress. It is recommended to minimize utilization of the system while the RAID check is in progress (roughly 7 hours). You can continue to use the system normally but the raid check will take longer (performance will not be impacted)".
2. However, the MAA could remain in this state beyond the estimated time indefinitely.
3. All automated submission of samples/tasks to the affected MAA may start failing.
4. Stopping samples/tasks submissions does not help speed up the RAID check.
A reboot should workaround the problem.