After provisioning NVMe namespaces for a new Linux host, the host still cannot discover them. What must the administrator verify next?

After provisioning NVMe namespaces for a new Linux host, the host still cannot discover them. What must the administrator verify next?

• A. The namespaces are part of a mapped NVMe subsystem that includes the host's NQN.
• B. The host has been added to the same initiator group as existing LUNs.
• C. The namespaces have the correct WWPN assigned.
• D. The namespaces were formatted with the correct file system.

Answer: (A)

In NVMe over Fabrics, a host only discovers namespaces if it is mapped to an NVMe subsystem that includes the host’s initiator name (NQN). The next thing to verify is that the namespaces are part of a mapped NVMe subsystem and that the host’s NQN is included in that subsystem’s initiator list. If the NQN isn’t mapped to the subsystem that contains the namespaces, the host will not see them during discovery, no matter how the namespaces were provisioned. Context: discovery in NVMe over Fabrics relies on the subsystem configuration identifying which initiators (via their NQNs) are allowed to access the namespaces. Add the host’s NQN to the correct subsystem/initiator group, then re-run discovery on the host (e.g., nvme discover, then nvme list). Formatting the namespaces or using a different file system won’t affect discovery, and WWPN is not part of the NVMe over Fabrics discovery model.

In NVMe over Fabrics, a host only discovers namespaces if it is mapped to an NVMe subsystem that includes the host’s initiator name (NQN). The next thing to verify is that the namespaces are part of a mapped NVMe subsystem and that the host’s NQN is included in that subsystem’s initiator list. If the NQN isn’t mapped to the subsystem that contains the namespaces, the host will not see them during discovery, no matter how the namespaces were provisioned.

Context: discovery in NVMe over Fabrics relies on the subsystem configuration identifying which initiators (via their NQNs) are allowed to access the namespaces. Add the host’s NQN to the correct subsystem/initiator group, then re-run discovery on the host (e.g., nvme discover, then nvme list). Formatting the namespaces or using a different file system won’t affect discovery, and WWPN is not part of the NVMe over Fabrics discovery model.