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Internal IO12E shelf reporting REFERENCE CLOCK FAULT

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Applies to

  • ONTAP 9
  • FAS2720

Issue

  • Internal Shelf enclosure status is reported as critical with REFERENCE CLOCK FAULT
Enclosure Status: critical
Channel: 0a
Shelf: 0
Shelf Type: DS212-12
Product Serial Number: SHXXXXXXXXXXXX
Module Type: IOM12E
 
Vendor Unique Element 83-IOM12E: (SAS)
Element Status         Status Bytes  Status Descriptions
1 [IOM12E A]    : CRITICAL          02,88,00,A1   MASTER, ADDITIONAL STATUS AVAILABLE, REFERENCE CLOCK FAULT, RESERVED, RESERVED
2 [IOM12E B]    : OK                01,00,00,20   RESERVED
 
  • Event logs show alerts similar to the following:

[Node-01: dsa_worker4: ses.status.ModuleError:alert]: DS212-12 (S/N SHXXXXXXXXXXXX) shelf 0 on channel 0a SAS expander error for SAS shelf electronics 1: critical status;Reference Clock Failure. This module is on the rear of the shelf at the top left, on shelf module A.

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