The system crashed due to parity error.
There are two kinds of parity errors:
++ Soft parity errors
These errors occur when an energy level within the chip (for example, a
one or a zero) changes, most often due to cosmic radiation. When
referenced by the CPU, such errors cause the system to either crash (if
the error is in an area that is not recoverable) or they recover other
systems. In case of a soft parity error, there is no need to swap the
board or any of the components.
++ Hard parity errors
These errors occur when there is a chip or board failure that corrupts
data. In this case, you need to replace the affected component, which
usually involves a memory chip swap or a board swap.
The frequency of occurrence of soft parity errors are 10 to 100 times
more than hard parity errors. Therefore, I would recommend to monitor
the switch for next 48 hours before you replace anything. This greatly
reduces the impact on your network.
Hope that helps.
Cheers
Sweta
P.s. Please rate the answer if it was helpful.
