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Attach PV on NVMe/TCP backend fails by REST API /protocols/nvme/subsystem-maps error

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Applies to

  • Astra Trident
  • ONTAP 9.5 and later
  • PV configured on NVMe/TCP backend

Issue

  • Unable to attach PV to pod
  • Command kubectl describe pod <POD> indicates error:

AttachVolume.Attach failed for volume "<PV>" : rpc error: code = Unknown desc = [POST /protocols/nvme/subsystem-maps][409] nvme_subsystem_map_create default  &{Error:0xc000d291d0}

  • trident-controller log also indicates POST /protocols/nvme/subsystem-maps fails

level=error msg="add namespace to subsystem failed, [POST /protocols/nvme/subsystem-maps][409] nvme_subsystem_map_create default  &{Error:0xc0016970e0}" logLayer=core requestID=<REQUESTID> requestSource=CSI workflow="controller=publish"
level=error msg="[POST /protocols/nvme/subsystem-maps][409] nvme_subsystem_map_create default  &{Error:0xc0016970e0}" Method=ControllerPublishVolume Type=CSI_Controller logLayer=csi_frontend requestID=<REQUESTID> requestSource=CSI workflow="controller=publish"
level=error msg="GRPC error: rpc error: code = Unknown desc = [POST /protocols/nvme/subsystem-maps][409] nvme_subsystem_map_create default  &{Error:0xc0016970e0}" logLayer=csi_frontend requestID=<REQUESTID> requestSource=CSI

  • AUDIT-MLOG-TXT.GZ in ONTAP indicates POST /protocols/nvme/subsystem-maps fails because no NVMe LIFs configured on the particular node

POST /api/protocols/nvme/subsystem-maps : ..  :: Error: The node "<NODE>" has no NVMe over Fabrics LIFs configured for SVM "<SVM>".

 

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