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    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Shelf_IOM_reporting_critical_status
      Shelf IOM reporting critical status Enclosure Status: critical 1 [IOM12B A] : CRITICAL 02,80,00,E4 ADDITIONAL STATUS AVAILABLE, RESERVED, RESERVED, EXCEPTION DATA VALID, RESERVED Even post replacing t...Shelf IOM reporting critical status Enclosure Status: critical 1 [IOM12B A] : CRITICAL 02,80,00,E4 ADDITIONAL STATUS AVAILABLE, RESERVED, RESERVED, EXCEPTION DATA VALID, RESERVED Even post replacing the IOM, , multiple other components like power supplies, fans, temperature sensors etc of the shelf reports NOT INSTALLED and IOM reports critical state: Element Status Status Bytes Status Descriptions Issue persists post swapping IOM with a working IOM in the faulty IOM slot(Downtime Needed)