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ACP errors reported for external shelf

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Category:
disk-shelves
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hw
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Applies to

IOM12 shelves 

Issue

  • EMS.log reports failure on both shelf ACP modules. Example:
ses.status.ACPError:alert]: DS224-12 (S/N XXXXXXXXXXXXXXX) shelf 24 on channel 9c 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.
ses.status.ACPError:alert]: DS224-12 (S/N XXXXXXXXXXXXXXX) shelf 24 on channel 9c 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.
monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 1b. Check fans, power supplies, disks, and temperature sensors.
callhome.shlf.fault:error]: Call home for SHELF_FAULT
  • CLI reports both ACP modules with critical status:
Cluster::> system node run -node <node name> -command storage show fault -v
Enclosure Status: critical
Channel: 1b
Shelf: 24
Shelf Type: DS224-12
Product Serial Number: XXXXXXXXXXXXXXX
Module Type: IOM12
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 [IOM12 B] : CRITICAL 02,18,00,40 NO ACPP, INBACP, FAIL
  • Issue remains after ACP disabling/re-enabling
  • Issue remains after the shelf modules reseat
  • Issue remains after the shelf modules replacement
  • Issue remains after the shelf power-cycle

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