Multiple sensors become "not readable" after BMC upgrade

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Visibility:: Public

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Category:: fas-systems

Specialty:: hw

Last Updated:

Applies to

AFF-A400
ONTAP 9.7P17
BMC 13.11P1

Issue

After BMC upgrade, multiple sensors of a node are found to report "No Reading".

bmc log debug log,
====================================== Self Test: (run for 1 sec) Selftest: passed Sensor Reading: (run for 1 sec) PilotIV | 00h | ok | 0.1 | Dynamic MC @ 20h PVCCIN_CPU0 | 01h | ns | 21.1 | No Reading PVCCIN_CPU1 | 02h | ns | 21.1 | No Reading PVDDQ_ABC | 03h | ns | 21.1 | No Reading PVDDQ_DEF | 04h | ns | 21.1 | No Reading PVDDQ_GHI | 05h | ns | 21.1 | No Reading PVDDQ_KLM | 06h | ns | 21.1 | No Reading P1V05_PCH | 07h | ns | 21.1 | No Reading System_Inlet | 10h | ok | 7.1 | 23 degrees C CX5_Inlet | 11h | ns | 7.2 | No Reading System_Outlet | 12h | ok | 7.3 | 30 degrees C NVMe_Temp | 13h | ok | 7.4 | 24 degrees C CX5_Temp1 | 14h | ns | 7.5 | No Reading CX5_Temp2 | 15h | ns | 7.6 | No Reading LED1_Temp | 16h | ok | 12.1 | 22 degrees C LED2_Temp | 17h | ok | 12.1 | 22 degrees C MP_Temp1 | 18h | ok | 15.1 | 23 degrees C MP_Temp3 | 19h | ok | 15.1 | 23 degrees C RiserL_Temp1 | 1Ah | ns | 11.1 | No Reading RiserL_Temp2 | 1Bh | ns | 11.1 | No Reading RiserM_Temp1 | 1Ch | ns | 11.2 | No Reading RiserM_Temp2 | 1Dh | ns | 11.2 | No Reading RiserM_Temp3 | 1Eh | ns | 11.2 | No Reading RiserM_Temp4 | 1Fh | ns | 11.2 | No Reading RiserR_Temp1 | 20h | ns | 11.3 | No Reading RiserR_Temp2 | 21h | ns | 11.3 | No Reading RiserR_Temp3 | 22h | ns | 11.3 | No Reading RiserR_Temp4 | 23h | ns | 11.3 | No Reading CPU0_Temp | 24h | ns | 3.1 | No Reading CPU1_Temp | 25h | ns | 3.2 | No Reading Mezz_Temp1 | 3Ch | ns | 11.4 | No Reading Mezz_Temp2 | 3Dh | ns | 11.4 | No Reading Bat_Temp | 40h | ok | 40.1 | 23 degrees C

PSU related alerts are also reported but can be automatically recovered.

[monitor.chassisPower.degraded:alert]: Chassis power is degraded: PVCCIN CPU0 is critical low (1 mV).

[env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 PIN is Unreadable

[env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 POUT is Unreadable

[ env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 PIN is Unreadable

[env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 POUT is Unreadable

[ power_low_monitor: monitor.chassisPower.degraded:alert]: Chassis power is degraded: Power Supply Status Critical: PSU2, PSU1.

[power_low_monitor: callhome.chassis.power:error]: Call home for CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU2, PSU1.

[monitor.chassisPower.ok:notice]: Chassis power is OK.

[monitor.globalStatus.critical:EMERGENCY]: Power Supply Status Critical: PSU2, PSU1.

[env_mgr: monitor.chassisPowerSupply.ok:info]: Chassis power supply 1 is OK.

[env_mgr: monitor.chassisPowerSupply.ok:info]: Chassis power supply 2 is OK.

[ power_low_monitor: monitor.chassisPowerSupplies.ok:info]: Chassis power supplies OK.

[env_mgr: callhome.chassis.ps.ok:notice]: Call home for CHASSIS POWER SUPPLY OK: PS 1

[env_mgr: callhome.chassis.ps.ok:notice]: Call home for CHASSIS POWER SUPPLY OK: PS 2