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Slowness during data copy from On-Prem to NetApp CVO
https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Slowness_during_data_copy_from_On-Prem_to_NetApp_CVO
Applies to ONTAP 9 Issue After implementing Windows Defender the throughput from the On-prem system toward the CVO reduced from 40-50 MBs to under 4MBs

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