= The FIFO message before NMI is useful for investigating the issue because it shows the state of the
system before the non-maskable interrupt (NMI) was triggered by the L2 watchdog timeout. The
FIFO message contains information about the CPU registers, the stack pointer, the instruction
pointer, and the last executed instructions. This can help identify the cause of the system hang or
deadlock that led to the watchdog reset. The other FIFO messages are not useful because they show
the state of the system after the reset or shutdown, which may not reflect the original
problem. Reference = https://kb.netapp.com/onprem/ontap/hardware/Handling_L2_Watchdog_Res
ets_on_the_FAS8200_and_AFF_A300_platforms
https://docs.netapp.com/us-en/ontap-metrocluster/install-ip/task_sw_config_restore_defaults.html
