My server has been running for a long time with no changes. Then I noticed an error from the OS that my 2nd parity drive had errors and was disabled. I downloaded the diagnostic and to test I did the procedure where you stop the array, unassign the parity drive, start, assign parity etc and have it rebuild parity.
However, soon after the same error occurred, the drive lost parity and was disabled again. I'm posting the diagnostic results here in case that indicates what I should do next.
tower-diagnostics-20220731-2039.zip