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    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-Issues/CFBIOS-522
      Issue In certain scenarios after inserting an NVMe drive in an AFF A250 system internal drive bay, "nvme.ssd.attach.error" event message with "ctrlr construct failed" appear on the console and ONTAP d...Issue In certain scenarios after inserting an NVMe drive in an AFF A250 system internal drive bay, "nvme.ssd.attach.error" event message with "ctrlr construct failed" appear on the console and ONTAP does not attach the drive. The following are examples of the messages on the serial console: Sep 27 17:35:20 [node1:nvme.ssd.attach.error:error]: NVMe SSD encountered error: "ctrlr construct failed" on slot 15.