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CVO throughput on AWS not meeting expectations due to disk latency

Last Updated:

Applies to

  • ST1 Throughput Optimized HDD Elastic Block Store (EBS) Volumes
  • Cloud Volumes ONTAP (CVO) on AWS


  • Certain workloads are not completing in a required time period:
    • High latencies are observed across disk for AWS EBS ST1 volumes
    • Connectivity to stores are verified as good by Amazon.
  • The workloads can be:
    • Bursty in nature
    • High in I/O Operations Per Second (IOPS)
    • Fabric Pool (Cloud Tiering)


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