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Multiple NVMe disks failed when using incorrect disk fail syntax in ONTAP

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Applies to

  • ONTAP
  • NVMe disks

Issue

  • NVMe disks have various IDs for their path (e.g. e5a.10.2.8) and their disk ID as used by ONTAP (e.g. 1.10.8).
  • Failing a disk requires disk ID rather than path.
  • When failing disk using path, it is expected to fail:
storage disk fail -disk e5a.10.2.8
Error: Disk "e5a.10.2.8" does not exist.
  • However, when failing using path with <> symbols, ONTAP interprets these as "greater than" and "less than" resulting in the unintentional failing of multiple disks up to that point:
storage disk fail -disk <e5a.10.2.8>
Success: 32 entries were acted on.
  • Note: ONTAP does prompt you if you want to continue running the command for each disk and will only fail multiple drives if you answer yes to each prompt.
  • Adding -i parameter with above syntax will fail disks immediately, resulting in RAID groups becoming degraded up to their RAID failure threshold

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