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    • https://kb.netapp.com/on-prem/E-Series/Hardware-KBs/E-Series_alert_with_several_degraded_SAS_errors
      E-Series Notification (An IOM (ESM) has reported an exception event) WARNING E-Series Notification (Controller wide port has gone to failed state) CRITICAL E-Series Notification (Drive channel set to ...E-Series Notification (An IOM (ESM) has reported an exception event) WARNING E-Series Notification (Controller wide port has gone to failed state) CRITICAL E-Series Notification (Drive channel set to Degraded) CRITICAL E-Series Notification (Controller redundancy lost) CRITICAL E-Series Notification (Drive tray path redundancy lost) CRITICAL E-Series Notification (Degraded wide port becomes failed) CRITICAL