I have a FREENAS-CERTIFIED-2U-12 purchased from iXsystems. It's running FreeNAS 11.3-U5 (current newest).
I recently updated the IPMI firmware, and noticed by coincidence while in the IPMI web interface that it was reporting one of the power supplies as failed.
(I created support Ticket ID: FVP-445-61031 and happily received a new PSU under warranty.)
*This* bug is to say however that FreeNAS does not generate an alert for this failure, neither in the FreeNAS UI itself nor by email. I generated a debug output and in IPMI/dump.txt the failure is noted, ex:
PS1 Status | C8h | ok | 10.88 | Presence detected
PS2 Status | C9h | ok | 10.87 | Presence detected, Failure detected
PS1 Status | 0x1 | discrete | 0x0100| na | na | na | na | na | na
PS2 Status | 0x3 | discrete | 0x0300| na | na | na | na | na | na
But the detection at this low level does not make it up to the UI somehow.
I am returning the defective unit to you, hopefully you can reproduce with it.