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ACP reports hardware failure with IOM12 shelf module

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Category:
disk-shelves
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hw
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Applies to

  • DS224C (DS224-12)
  • DS212C (DS212-12)
  • DS460C (DS460-12)
  • IOM12, IOM12B
  • ONTAP 9

Issue

  • Missing one of the two IOMs in sysconfig -a output. Example

::> system node run -node <node_name> -command sysconfig -a
...
Shelf 0: DS224-12  Firmware rev. IOM12E A: 0230  IOM12E B: 0230
Shelf 1: DS224-12  Firmware rev. IOM12  A: 0281   B: ----      

  • EMS or event log show output shows ses.status.ACPError and monitor.shelf.fault events:

[CLUSTER-N1: dsa_worker0: ses.status.ACPError:alert]: DS224-12 (S/N SHFNC1234567890) shelf 1 on channel 1a ACP Processor error for SAS shelf ACP processor 1: critical status    ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top left, on shelf module A.

[CLUSTER-N1: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 1a. Check fans, power supplies, disks, and temperature sensors.
[CLUSTER-N1: statd: callhome.shlf.fault:error]: Call home for SHELF_FAULT
[CLUSTER-N1: start_asup_collector_thread: shelf.config.tomixedha:notice]: System has transitioned to a mixture of single, multi-path or quad-path storage configurations.
[CLUSTER-N1: start_asup_collector_thread: callhome.dsk.redun.fault:error]: Call home for DISK REDUNDANCY FAILED

[CLUSTER-N1: dsa_worker1: ses.status.electronicsError:alert]: DS224-12 (S/N SHFNC1234567890) shelf 1 on channel 1a environmental monitoring error for SES electronics 1: not available    ; enclosure services hardware failed This module is on the rear of the shelf at the top left.
[CLUSTER-N1: dsa_worker1: ses.status.ModuleError:alert]: DS224-12 (S/N SHFNC1234567890) shelf 1 on channel 1a SAS expander error for SAS shelf electronics 1: status not available; status not available. This module is on the rear of the shelf at the top left, on shelf module A.
[CLUSTER-N1: dsa_worker1: ses.status.ACPError:alert]: DS224-12 (S/N SHFNC1234567890) shelf 1 on channel 1a ACP Processor error for SAS shelf ACP processor 2: critical status    ; Alternate Control Path hardware failed This module is on the rear of the shelf at the top right, on shelf module B.

  • STORAGE-FAULT Active IQ AutoSupport section or system node run -node <node_name> -command storage show fault -v output:

Enclosure Status: critical
...
Module Type: IOM12
...
Enclosure Electronics:
Element Status                      Status Bytes  Status Descriptions
  1 [IOM12 A]    : OK                01,00,01,00   REPORT
  2 : NOT INSTALLED    05,00,00,00  
...
Enclosure:
Element Status         Status Bytes  Status Descriptions
  1: OK                01,00,02,00   FAIL
...
Vendor Unique Element 83-IOM12: (SAS)
Element Status Status Bytes Status Descriptions
1 [IOM12 A] : OK 01,08,00,A0 MASTER, RESERVED, RESERVED
2: NOT INSTALLED 05,00,00,00
...
Vendor Unique Element 85-IOM12: (ACP)
Element Status                      Status Bytes  Status Descriptions
  1 [IOM12 A]    : CRITICAL          02,18,00,40   NO ACPP, INBACP, FAIL
  2             : NOT INSTALLED     05,18,00,00 

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