You installed a new 2-node FAS500f ONTAP 9.8 switchless cluster that serves NAS volumes to both NFSv4.1 and SMB clients. The host operating systems have full flow control enabled on their data ports.
In this scenario, which two flow control settings would you verify? (Choose two.)
In a 2-node FAS500f ONTAP 9.8 switchless cluster setup, it is important to ensure optimal flow control settings for both performance and compatibility with other network devices. The best practice is to have full flow control enabled on the data network ports to manage traffic and ensure data integrity. Conversely, full flow control should be disabled on the cluster network ports to prevent any potential disruption or inefficiencies in cluster communication. Therefore, the correct settings you should verify are that the data network ports have full flow control enabled and the cluster network ports have full flow control disabled.
Official should be disable cluster network port full flow control Data network port default is enable but best should match with your existing network settings. https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/What_are_the_flow_control_best_practices_for_Ethernet%3F
Historically (7-Mode/clustered Data ONTAP), NetApp had recommended that flow control be disabled on all network ports within a NetApp Data ONTAP cluster. This approach is no longer the case. Guidance in this area has since changed, the new recommended best practice is as follows: Disable flow control on cluster network ports in the Data ONTAP cluster. Flowcontrol on the remaining network ports (the ports that provide data, management, and intercluster connectivity) should be configured to match the settings within the rest of your environment.
Data - Enabled Cluster - Disabled
it has to be data flow enabled and cluster network flow should be disabled
https://kb.netapp.com/onprem/ontap/da/NAS/What_are_the_flow_control_best_practices_for_Ethernet%3F