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Frequent drive failures on a Shelf

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Applies to

  • AFF/FAS/ASA
  • ONTAP 9
  • Disk Shelves
  • MetroCluster configurations

Issue

  • Multiple SSDs in a Shelf are repeatedly failing.
  • After each disk replacement and RAID reconstruction, new failures occur in the same shelf. The system eventually ran out of spare disks, placing the aggregate in a degraded state.
  • Sample Logs:

Thu Oct 02 09:35:41 node2-01: disk_server_1: shm.threshold.consecutiveTimeouts:error]: shm: Disk 4d.20.1 has exceeded the threshold of 11 consecutive timeouts; the system will fail the disk if possibleThu Oct 02 11:15:45 node2-01: disk_server_1: shm.threshold.consecutiveTimeouts:error]: shm: Disk 1c.20.22 has exceeded the  threshold of 11 consecutive timeouts; the system will fail the disk if possible.

20.1 : NETAPP   X670_ABCDEFGHIJK NA51 14651.0GB 520B/sect (7XXXXXXX3) (Failed)
20.22: NETAPP   X670_ABCDEFGHIJK NA51 14651.0GB 520B/sect (8XXXXXXX3) (Failed)

  • Checked and found that the shelf modules are running on a very older firmware version:
  • Example:

Shelf 20: DS224-12  Firmware rev. IOM12B A: 0141  IOM12B B: 0141

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