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E-Series alert with several degraded SAS errors

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Applies to

NetApp E-Series

Issue

  • Array reports several SAS related critical events for multiple components including drive channel and ports.

E-Series Notification (An IOM (ESM) has reported an exception event) WARNING

E-Series Notification (Drive channel set to Degraded) CRITICAL

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

 

  • IOM has amber light.
  • System in degraded state with disabled write cache.

Examples:

Degraded drive paths:
Channel: 2
Related drives (Shelf, Bay): (0, 2)

Storage array:
Port reporting problem:
Drive shelf 0, IOM: B (Right), Port: Port 2
Status: SAS Port Degraded

Degraded drive channel: 2

Port reporting problem:
Controller B, Internal connection
Status: SAS Port Degraded

 

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