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Takeover node shuts down due to degraded PSU readings

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hw
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Applies to

  • A700s

Issue

  • While node 2 has taken over the partner node 1 for hardware maintenance, the following errors and system shutdown  of node 2 are seen:

Mon Jun 05 19:09:58 -0400 [node2: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 InPower is Warning High (1000 W)
Mon Jun 05 19:09:59 -0400 [node2: power_low_monitor: monitor.chassisPower.degraded:alert]: Chassis power is degraded: Power Supply Status Critical: PSU1 FRU.
Mon Jun 05 19:09:59 -0400 [node2: power_low_monitor: callhome.chassis.power:error]: Call home for CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU1 FRU.

Mon Jun 05 19:10:00 -0400 [node2: monitor: monitor.globalStatus.critical:EMERGENCY]: This node has taken over node1. Power Supply Status Critical: PSU1 FRU.
Mon Jun 05 19:11:28 -0400 [node2: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 InPower is Critical High (1020 W)

  • The following is seen in the BMC event logs of node 2 during this time:

693 | 06/05/2023 | 22:56:51 | PSU1_PIN | Upper Non-critical going high | Asserted
694 | 06/05/2023 | 22:56:51 | PSU1_PIN | Upper Critical going high | Asserted
695 | 06/05/2023 | 22:57:06 | PSU1_PIN | Upper Critical going high | Deasserted
696 | 06/05/2023 | 22:57:16 | System Firmware Progress #0x00 | SMBus initialization | Asserted
697 | 06/05/2023 | 22:57:16 | System Firmware Progress #0x00 | Memory initialization | Asserted
698 | 06/05/2023 | 22:57:17 | PSU1_PIN | Upper Non-critical going high | Deasserted

731 | 06/05/2023 | 23:03:31 | System Event #0x00 | BIOS POST complete | Asserted
732 | 06/05/2023 | 23:03:43 | System Firmware Progress #0x00 | System boot initiated | Asserted
733 | 06/05/2023 | 23:08:50 | PSU1_PIN | Upper Non-critical going high | Asserted
734 | 06/05/2023 | 23:08:53 | PSU1_PIN | Upper Critical going high | Asserted
735 | 06/05/2023 | 23:09:00 | PSU1_PIN | Upper Critical going high | Deasserted
736 | 06/05/2023 | 23:09:01 | PSU1_PIN | Upper Critical going high | Asserted
737 | 06/05/2023 | 23:09:04 | PSU1_PIN | Upper Critical going high | Deasserted
738 | 06/05/2023 | 23:09:05 | PSU1_PIN | Upper Critical going high | Asserted
739 | 06/05/2023 | 23:09:07 | PSU1_PIN | Upper Critical going high | Deasserted
740 | 06/05/2023 | 23:09:08 | PSU1_PIN | Upper Critical going high | Asserted
741 | 06/05/2023 | 23:09:14 | PSU1_PIN | Upper Critical going high | Deasserted

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