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Fan has noise and it is fixed automatically in 2 minutes
https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Fan_has_noise_and_it_is_fixed_automatically_in_2_minutes
Applies to ONTAP 9 AFF-A250 Issue Fan has noise. It seems high-speed rotation. It is fixed automatically in 2 minutes.

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