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AFF-FAS Systems shuts down due to a bad charger circuit

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • AFF A400, C400
  • ASA A400, C400
  • FAS8300, 8700

Issue

  • System shuts down:
Mon May 12 19:12:04 +0200 [node1: env_mgr: nvmem.battery.capLowWarn:error]: The NVMEM battery capacity is below normal (3 cycles).
Mon May 12 20:00:00 +0200 [node1: statd: monitor.shutdown.nvramLowBattery.pending:alert]: NVRAM battery is dangerously low. Halting system in 1 hour. Replace the battery immediately!
Mon May 12 20:12:04 +0200 [node1: env_mgr: nvmem.battery.capLowWarn:error]: The NVMEM battery capacity is below normal (3 cycles).
Mon May 12 21:00:00 +0200 [node1: statd: monitor.nvramLowBattery.notice:notice]: If the NVRAM battery is dangerously low, the system shuts down automatically every 24 hours to encourage you to replace it. If you reboot the system it will run for another 24 hours before shutting down.
Mon May 12 21:00:22 +0200 [node1: shutdown_thread0: kern.shutdown:notice]: System shut down because : "NVRAM BATTERY FAILURE".
  • EMS log:
Fri May 16 17:14:31 +0200 [node1: env_mgr: nvmem.battery.chgrFailed:error]: The NVMEM battery charger is disabled because a bad charger circuit is detected.
  • No  EMS alerts nvmem.battery.capLowCrit and nvmem.battery.fccLowCrit
  • When replaced, new NVRAM battery is not recognized by the system
  • System running on a fixed version of CONTAP-268265

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