Periodic BMC reset may cause hardware faults in the event log

Applies to

NetApp SolidFire

Issue

It is normal for the BMC to periodically get reset to prevent any issues with BMC processes.

Normally we only see the message "Beginning BMC cold reset and setting new reset date".

Occasionally, hardware faults referencing fan RPM or PSU etc are generated.

The events are purely cosmetic and require no action. Event logs show hardware faults following BMC cold reset. The events clear within 60 seconds.

Example:

Event ID  Event Time                Type                            Message                                                                 Service ID   Node ID   Drive ID    Details
xxxxx     2019-10-02 20:57:56  platformHardwareEvent  Beginning BMC cold reset and setting new reset date                       11            -          { "bmcResetDurationMinutes": 20160, "bmcResetDate": "2019-10-17T04:36:51" }
xxxxx     2019-10-02 20:57:09  platformHardwareEvent  Hardware fault detected                                                                  11            -          "Hardware fault ID 2431 text=Fan1A RPM is failed or missing."
xxxxx     2019-10-02 20:57:09  platformHardwareEvent  Hardware fault detected                                                                  11            -          "Hardware fault ID 2432 text=Fan1B RPM is failed or missing."
xxxxx     2019-10-02 20:57:09  platformHardwareEvent  Hardware fault detected                                                                  11            -          "Hardware fault ID 2433 text=Fan2A RPM is failed or missing."
xxxxx     2019-10-02 20:57:09  platformHardwareEvent  Hardware fault detected                                                                  11            -          "Hardware fault ID 2434 text=Fan2B RPM is failed or missing."
.........
xxxxx     2019-10-02 20:57:44  platformHardwareEvent  Hardware fault resolved                                                                   11            -          "Hardware fault ID 2431"
xxxxx     2019-10-02 20:57:44  platformHardwareEvent  Hardware fault resolved                                                                   11            -          "Hardware fault ID 2432"
xxxxx     2019-10-02 20:57:44  platformHardwareEvent  Hardware fault resolved                                                                   11            -          "Hardware fault ID 2433"
xxxxx     2019-10-02 20:57:44  platformHardwareEvent  Hardware fault resolved                                                                   11            -          "Hardware fault ID 2434"

Event ID    Event Time    Type    Message    Service ID    Node ID    Drive ID    Details
xxxxx    2020-10-16 11:51:10 platformHardwareEvent Beginning BMC cold reset and setting new reset date 4     3 - { "bmcResetDurationMinutes": 20160, "bmcResetDate": "2020-10-30T02:51:10" }

xxxxx    2020-10-16 11:52:31    platformHardwareEvent    Hardware event        3        "Power supply PS2 is not present."
xxxxx    2020-10-16 11:52:30    platformHardwareEvent    Hardware event        3        "Power supply PS1 is not present."

xxxxx    2020-10-16 11:53:36    platformHardwareEvent    Hardware event        3        "Power supply PS2 now present."
xxxxx    2020-10-16 11:53:36    platformHardwareEvent    Hardware event        3        "Power supply PS1 now present."