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Handling L2 Watchdog Resets on the FAS8020 / FAS8040 / FAS8060 / FAS8080 / AFF8020 / AFF8040 / AFF8060 / AFF8080

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Applies to

  • ONTAP 9
  • FAS8020 / FAS8040 / FAS8060 / FAS8080 / AFF8020 / AFF8040 / AFF8060 / AFF8080

Issue

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

Service Processor logs on the impacted node show the following:

Record 454: Mon Feb 08 11:49:20.924775 2021 [IPMI Event.critical]: L2 watchdog timeout hard reset
Record 455: Mon Feb 08 11:49:20.984259 2021 [Trap Event.critical]: hwassist l2_watchdog_reset (29)
Record 456: Mon Feb 08 11:49:23.000822 2021 [SP.critical]: Filer Reboot

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

[cluster-01:mgr.boot.reason_abnormal:EMERGENCY]: System rebooted due to a watchdog reset.

 

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