DISK REDUNDANCY FAILED error due to IOM module

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Category:: fas-systems

Specialty:: HW

Last Updated:

Applies to

ONTAP 9
IOM12B
IOM12

Issue

AutoSupport trigger subject HA Group Notification (DISK REDUNDANCY FAILED) ERROR.
SYSCONFIG-A shows less shelves over 1 path:

Path using IOM B:

Shelf 0: DS212-12 Firmware rev. IOM12E A: 0250 IOM12E B: 0250 Shelf 1: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130 Shelf 2: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130 Shelf 3: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130 Shelf 4: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130 Shelf 5: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130

Path using IOM A:

Shelf 1: DS212-12 Firmware rev. IOM12B A: 0130 IOM12B B: 0130

SAS-EXPANDER-PHY-STATE show rate as unknown.

Shelf name: Partner.shelf1 Shelf id: 1 Channel: Partner Module: A Shelf state: ONLINE Module state: OK

Partial Path Link Invalid Running Loss Phy CRC Phy Disk Port Timeout Rate DWord Disparity Dword Reset Error Change Id State Value (ms) (Gb/s) Count Count Count Problem Count Count -------------------------------------------------------------------------------------------------- [HST8/P2:0 ] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST9/P2:1 ] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST10/P2:2] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST11/P2:3] UNKWN LNK 0 NA 0 0 0 0 0 2

Shelf name: 0b.shelf3 Shelf id: 3 Channel: 0b Module: A Shelf state: ONLINE Module state: OK

Partial Path Link Invalid Running Loss Phy CRC Phy Disk Port Timeout Rate DWord Disparity Dword Reset Error Change Id State Value (ms) (Gb/s) Count Count Count Problem Count Count -------------------------------------------------------------------------------------------------- [HST0/P0:0 ] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST1/P0:1 ] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST2/P0:2 ] UNKWN LNK 0 NA 0 0 0 0 0 2 [HST3/P0:3 ] UNKWN LNK 0 NA 0 0 0 0 0 2