So my monthly parity check just finished and it came back with 416 errors, how do I resolve these and where can I find more detailed information on the errors?

I would start by looking in the SMART Attributes for each disk at the SMART values for Attribute Numbers 5, 196, 197, and 198.  These should all be zero with the exception of number 5 and that one should be questioned if unzero. 

Any unclean shutdown since last check?

No unclean shutdowns since the last check.

 

I do not see SMART Attributes for 196 it is missing.

 

Run memtest  (if not using ECC RAM or it can be disable).