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Disable in-band authentication over NVMe
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If you have configured in-band authentication over NVMe using DH-HMAC-CHAP, you can choose to disable it at any time.
If you are reverting from ONTAP 9.12.1 or later to ONTAP 9.12.0 or earlier, you must disable in-band authentication before you revert. If in-band authentication using DH-HMAC-CHAP is not disabled, revert will fail.
Steps
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Remove the host from the subsystem to disable DH-HMAC-CHAP authentication:
vserver nvme subsystem host remove -vserver <svm_name> -subsystem <subsystem> -host-nqn <host_nqn>Cli -
Verify that the DH-HMAC-CHAP authentication protocol is removed from the host:
vserver nvme subsystem host showCli -
Add the host back to the subsystem without authentication:
vserver nvme subsystem host add vserver <svm_name> -subsystem <subsystem> -host-nqn <host_nqn>Cli
