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    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Unable_to_generate_a_WWN_No_more_MAC_address_available_to_generate_WWN
      Applies to FAS2620 All Flash FAS FAS2650 FAS 2720 FAS8000 FAS8200 AFF8000 Series FAS9000 Issue Errors when provisioning FCP services and LIFs: ClusterA::> vserver fcp create -status-admin up -vserver ...Applies to FAS2620 All Flash FAS FAS2650 FAS 2720 FAS8000 FAS8200 AFF8000 Series FAS9000 Issue Errors when provisioning FCP services and LIFs: ClusterA::> vserver fcp create -status-admin up -vserver SAN_vserver1 Error: command failed: Unable to assign a unique WWNN for SAN_vserver1 Cluster1::> network interface create -vserver SAN_vserver1 -lif fcp1 -role data -data-protocol fcp -home-node node1 -home-port 0a Info: Unable to generate a WWN, No more MAC address available to generate WWN.
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Network_interfaces_not_reachable_for_several_minutes_after_storage_failover
      Applies to ONTAP Issue After takeover/giveback or upgrade, clients lose network access to resources on the storage controller Some of the LIFs become unreachable via ping The issue resolves by itself ...Applies to ONTAP Issue After takeover/giveback or upgrade, clients lose network access to resources on the storage controller Some of the LIFs become unreachable via ping The issue resolves by itself after a few minutes
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/SMB_performance_slow_for_MacOS_clients
      Applies to MacOS 11.4 Big Sur and later ONTAP 9 SMB/CIFS Issue MacOS users are reporting slowness when reading or writing files over SMB. Reading/Writing multiple files degrades overall throughput for...Applies to MacOS 11.4 Big Sur and later ONTAP 9 SMB/CIFS Issue MacOS users are reporting slowness when reading or writing files over SMB. Reading/Writing multiple files degrades overall throughput for the same client. SKtrace contains 2025-06-02T00:06:41Z 16183164273707184 [1:0] NBLADE_Chk: n0x8710f0: src/Protocols/Cifs/Support/Smb2Credits.cpp:405 rt=1171