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Manage automated host discovery of NVMe/TCP controllers in ONTAP

Contributors netapp-aherbin netapp-aaron-holt netapp-dbagwell
PDFs

Beginning with ONTAP 9.14.1, host discovery of controllers using the NVMe/TCP protocol is automated by default in IP-based fabrics.

Enable automated host discovery of NVMe/TCP controllers

If you previously disabled automated host discovery, but your needs have changed, you can re-enable it.

Steps

  1. Enter advanced privilege mode:

    set -privilege advanced
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  2. Enable automated discovery:

    vserver nvme modify -vserver <vserver_name> -mdns-service-discovery-enabled true
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  3. Verify automated discovery of NVMe/TCP controllers is enabled.

    vserver nvme show
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Disable automated host discovery of NVMe/TCP controllers

If you do not need NVMe/TCP controllers to be automatically discovered by your host and you detect unwanted multicast traffic on your network, you should disable this functionality.

Steps

  1. Enter advanced privilege mode:

    set -privilege advanced
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  2. Disable automated discovery:

    vserver nvme modify -vserver <vserver_name> -mdns-service-discovery-enabled false
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  3. Verify automated discovery of NVMe/TCP controllers is disabled.

    vserver nvme show
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