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    • NVRAM latency on AFF-A400 indicative of Backplane communication issues
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/NVRAM_latency_on_AFF-A400_indicative_of_Backplane_communication_issues
      Applies to CIFS Cluster Session Manager (CSM) AFF-A400 Issue Reading or writing files is slow when the data LIF is located on one node and the data volume is on a different node. NVRAM Latency is seen...Applies to CIFS Cluster Session Manager (CSM) AFF-A400 Issue Reading or writing files is slow when the data LIF is located on one node and the data volume is on a different node. NVRAM Latency is seen via qos statistics volume latency show command