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Handling L2 Watchdog Resets on the AFF A320 Platform

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Applies to

  • AFF A320

Issue

  • Node reboots unexpectedly
  • Node does not reboot after an unexpected shutdown

BMC logs on the impacted node show the following: 

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

  • If node reboots, the following error can be seen in the EMS log files

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)

  • If node is unable to reboot, system senors from the BMC may show the Attn_Sensor1 as Asserted

Power_Event      | 0x0        | discrete   |            | na        | na        | na        | na
System_FW_Status | 0x0        | discrete   | 0x2f       | na        | na        | na        | na
Wrench_Port_Up   | 0x0        | discrete   | Enabled    | na        | na        | na        | na
Attn_Sensor1     | 0x0        | discrete   | Asserted   | na        | na        | na        | na

 

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