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Controller encountered internal component failure - OS: Operational State, CF: Component Failure

Last Updated:

Applies to

  • All E-Series Arrays
  • All E-Series Controller OS versions


  • One or both controllers could have 7-segment code: OS CF
  • This operational state is displayed if an internal controller component failure occurs while the controller is online
  • An additional detail code identifies the failed component as defined for the Component Failure category
  • This sequence will continue to be displayed even if the controller is subsequently placed offline (held in reset) 


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