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AFF A250 won't boot due to faulty drive

Last Updated:

Applies to

  • ONTAP 9
  • AFF A250


  • Node not booting
  • Partner node sees inventory errors, EMS LOGS:

3/6/2023 11:03:10   node-02 ERROR    cf.disk.inventory.mismatch: Status of the disk 0n.10P1(66305030:54101010:00253845:00000002:500A0981:00000001:00000000:00000000:00000000:00000000)has recently changed or the node (node-01) is missing the disk.

  • SP LOGS on the downed node indicate errors on slot 10 of the shelf:

44 | OEM record ee | Device Bus: 112 Dev: 0 Fun: 0 (slot 10) Failed to train at max link speed/width, retraining cycle 0

  • PCI stealth errors to this same device can also be observed

Sun Jan 29 17:18:21  0100 [node-01: PCI Link:]: params: {'pcie_link_errors': 'performance is not optimal for PCI Device 144d:a824 in slot 10 on Controller. Dv[a824](112,0,0) in slot 10: LinkCap(MaxLkSp(3),MaxLkWd(4),ASPM(0),L0(6),L1(2),SurpDn,DLAct,Port(10)), LinkCap(MaxLkSp(3),MaxLkWd(2),ASPM(0),L0(7),L1(6),Port(0)), LinkStatus(LkSp(3),LkWd(1),DLAct). '}

  • We see in storage shelf, drive 10 has a link width of 1 (instead of 2)

[10 ]  OK        8.0          8.0          8.0           8.0          2            2                       0            0            0            0              0

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