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E-Series Controller cache battery failed even after applying the latest firmware

Last Updated:

Applies to

  • NetApp E-Series
  • StorageGRID Appliances.
  • SANtricity OS 11.50.3x or later is installed.
  • A manual learn cycle was recently completed.


  • In E-Series AutoSupport bundle (MAJOR-EVENT-LOG) or system events, a Controller cache battery failed with Event Type 210C is reported:
3234  2022-12-23 21:20:23  B  Critical  notification  0/0/0        0x210C  Controller cache battery failed
  • If enabled, AutoSupport may generate an event with the following subject: E-Series Notification from Unnamed (Controller cache battery failed) CRITICAL

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