Failed Chassis PSU results in system shutdown

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Category:: fas-systems

Specialty:: hw

Last Updated:

Applies to

FAS8020

Issue

Receive the following alerts regarding failed chassis PSU

CHASSIS POWER SUPPLY NEED TO BE REPLACED: PS 1

EMS log shows

[Cluster1: power_low_monitor: monitor.chassisPower.degraded:alert]: Chassis power is degraded: Power Supply Status Critical: PSU1.

[Cluster1: power_low_monitor: callhome.chassis.power:error]: Call home for CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU1.

[Cluster1: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 Power Output has failed

[Cluster1: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 has failed

[Cluster1: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 is over voltage

Both nodes in HA pair shutdown due to NMI / Watchdog Reset

Event log

[Agent.notice]: 889.353: 128 : PCIe Slot 1 Power Good de-asserted [Agent.notice]: 889.384: 129 : PCIe Slot 2 Power Good de-asserted [Agent.notice]: 889.396: 59 : NVRAM 12V Power Good de-asserted [Agent.notice]: 889.411: 14 : Attention LED (at Midplane) asserted [Agent.notice]: 889.427: 29 : Non-maskable Interrupt from PCH to CPU asserted [Agent.notice]: 889.427: 11 : Controller Attention LED asserted [Agent.notice]: 893.579: 5 : DC Power OK PSU1 de-asserted [Agent.notice]: 893.580: 9 : Power Supply Fault LED PSU1 asserted [Agent.notice]: 041.083: 30 : Non-maskable Interrupt to PCH asserted [Agent.notice]: 133.088: 30 : Non-maskable Interrupt to PCH de-asserted [IPMI Event.critical]: NMI [IPMI Event.critical]: L2 watchdog timeout hard reset [Trap Event.critical]: hwassist l2_watchdog_reset (29) [IPMI.notice]: 4203 | 02 | EVT: 0150d4ff | Bat_Curr | Assertion Event, "Lower Non-critical going low " | Reading: -1.760 | Threshold: -0.040 [Agent.notice]: 749.130: 145 : SP XDP Interface Enable asserted [IPMI.notice]: 4303 | 02 | EVT: 6fc804ff | System_Watchdog | Assertion Event, "Timer interrupt" [IPMI.notice]: 4403 | 02 | EVT: 6fc104ff | System_Watchdog | Assertion Event, "Hard reset" [Agent.notice]: 151.570: 52 : NVRAM Destage Request de-asserted [Agent.notice]: 151.570: 59 : NVRAM 12V Power Good asserted [Agent.notice]: 450.922: 0 : CPU Power Good from PCH via voltage translation asserted [Agent.notice]: 451.651: 2 : CPU domain power good (from seq. CPLD) asserted [Agent.notice]: 513.118: 49 : PCH Platform Reset de-asserted [SP.critical]: Filer Reboots