3/31/2019, 11:00 PM, UPDATE:
The maintenance processes have completed and the P: Drive is now accessible.
Unfortunately, a process that was intended to ensure the stability and integrity of the P: Drive failed to complete and corrupted the data. The P: Drive had to be restored to the most recent good restore point, which was Thursday, March 28, 9:30 a.m. This means that any changes to files on the P: Drive between 9:30 a.m.- 5:00 p.m. on Thursday, 3/28, have been lost.
If you are not sure what files you may have edited on Thursday, may applications like Microsoft Word and Excel will show you recently opened items when you click File > Open
3/28/2019, 5:00 PM: To perform required maintenance on the university's P: Drive, it is scheduled to be offline starting Thursday, March 28, at 5:00 p.m. and is expected to be down until Monday, April 1 at 7:00 a.m.