SCSI Check Condition Error "unknown device" 0s.0 on AFF-A20

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Votes:: 0

Category:: aff-series

Specialty:: HW

Last Updated:

Applies to

AFF-A20
ONTAP 9

Issue

Repeating SCSI check condition unknown device errors seen in logs for device 0s.0 (which is the internal 'shelf module' device ID):

cluster1-01 ERROR scsi.cmd.checkCondition: Unknown device 0s.0: Check Condition: CDB 0x12: Sense Data SCSI:hardware error - (0x4 - 0x44 0x2 0x0)(0).
cluster1-02 ERROR scsi.cmd.checkCondition: Unknown device 0s.0: Check Condition: CDB 0x12: Sense Data SCSI:hardware error - (0x4 - 0x44 0x2 0x0)(0).

No shelf module data in the disk output of sysconfig -a:

      slot 0: Virtual NVMe Host Adapter 0n
            0    : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            1    : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            2    : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            6    : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            12   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            13   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            14   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            18   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            24   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            25   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            26   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            30   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            36   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            37   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            38   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)
            42   : NETAPP   X4032WCOFB15TNVE NA50 14651.0GB 4160B/sect (123456789000)                                                                                     <<<<<Missing shelf module data
                 >>>>>>>>>>>>MISSING SHELF INFO SHOULD BE HERE<<<<<<<<<<<<<<<

When checking environment status there will be no output, or possibly an error message like SES shelf information is not available