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High Write Latency on HA (High Availability) CVO configurations

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ontap-9
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perf
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Applies to

  • NetApp Cloud Volumes ONTAP (CVO)
  • All supported cloud providers (Azure, AWS, GCP)
  • HA (High Availability) CVO configurations

Issue

  • Customers observe high write latency and periodic NFS slowness on CVO clusters.
  • These events are typically reported by application teams as “NFS not responding” or degraded performance on critical volumes.
  • Issue recurs daily during peak write activity.
  • Performance statistics show high overall latency, with the majority attributed to the NVLOG
  • No CPU saturation or aggregate full conditions observed.

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