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System show a disk shelf fault

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ontap-9
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HW
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Applies to

  • ONTAP 9
  • FAS/AFF

Issue

  • Both nodes in the cluster report disk shelf fault in EMS

node 1        ERROR         monitor.shelf.warning: Fault reported on disk storage shelf attached to channel 0b. Check fans, power supplies, disks, and temperature sensors.
node 2        ERROR         monitor.shelf.warning: Fault reported on disk storage shelf attached to channel 0b. Check fans, power supplies, disks, and temperature sensors.

  • Shelf 0 enclosure status is reported as fail and IOM A has VPD fault:

        Enclosure Status: non-critical
        Channel: 0a
        Shelf: 0
        Shelf Type: DS224-12
        Product Serial Number: SHFFXXXX76
        Module Type: IOM12E

        Enclosure:
        Element Status         Status Bytes  Status Descriptions
          1: NONCRITICAL       03,00,02,00   FAIL

        Vendor Unique Element 83-IOM12E: (SAS)
        Element Status         Status Bytes  Status Descriptions
          1 [IOM12E A]    : NONCRITICAL       03,0C,00,20   BACKPLANE VPD FAULT, MASTER, RESERVED
          2 [IOM12E B]    : OK                01,00,00,20   RESERVED     

  • This points to an issue with node node 2, as controller A is configured as this node.

        NetApp Release 9.16.1P4: Tue May 27 19:22:56 EDT 2025
         System ID: 0XXX16 (node 2); partner ID: 0XXX16 (node 1)
         System Serial Number: 9XXXXX40 (node 2)

          Controller:         A

        NetApp Release 9.16.1P4: Tue May 27 19:22:56 EDT 2025
         System ID: 0XXX16 (node 1); partner ID: 0XXX16 (node 2)
         System Serial Number: 9XXXXX41 (node 1)

         Controller:         B

  • The SP-LATEST-IPMI logs indicate that the chassis LED is turned ON by SAS expander (Shelf):

        tag  origin  fld                                     fault reason                                    count  time
        ---- ------- ----                                    -------------                                   ------ -----
        1    bmc     /chassis-1                              SAS Expander has set the Chassis LED ON         1      Wed Oct  1 23:39:04 2025

        Fault Lights On:
                     /chassis-1  

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