处理 AFF/ASA A800、C800 平台上的 L2 看门狗重置

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适用场景

AFF A800、AFF C800、ASA A800、ASA C800

问题描述

节点意外重新启动
节点在意外关闭后未重新启动

受影响节点上的BMC日志显示以下内容：

Record 402: Thu May 05 06:20:35.070000 2022 [ASUP.notice]: First notification email | (REBOOT (abnormal)) WARNING | Send failed Record 403: Thu May 05 06:20:40.640000 2022 [IPMI.notice]: 0076 | 02 | EVT: 6fc302ff | System_Watchdog | Assertion Event, "Power cycle" Record 404: Thu May 05 06:20:40.640000 2022 [IPMI Event.critical]: L2 watchdog timeout power cycle

如果节点重新启动、则 EMS日志文件可能会显示以下错误

Thu May 05 15:33:43 +0800 [netapp: splog_main: mgr.boot.reason_abnormal:EMERGENCY]: System rebooted due to a watchdog reset. Thu May 05 15:33:43 +0800 [netapp: splog_main: callhome.reboot.watchdog:alert]: Call home for REBOOT (watchdog reset)

Thu May 05 15:33:43 +0800 [netapp: cf_hwassist: cf.hwassist.takeoverTrapRecv:notice]: hw_assist: Received takeover hw_assist alert from partner(node), system_down because l2_watchdog_reset.

如果节点无法重新启动、则 BMC中的system senors 可能会将 Attn_Sensor1 显示为 Asserted

PCI_SW1_Err | 0x0 | discrete | Deasserted | na | na | na | na Wrench_Port_Up | 0x0 | discrete | Enabled | na | na | na | na SysReset | 0x0 | discrete | | na | na | na | na System_Watchdog | 0x0 | discrete | | na | na | na | na Attn_Sensor1 | 0x0 | discrete | Asserted | na | na | na | na