Skip to main content
NetApp Stage KB

High latency and disk utilization in Azure CVO due to disk limitations

Last Updated:


Applies to

  • ONTAP 9
  • Cloud Volumes ONTAP (CVO) for Azure


  • ONTAP reports high latency from disk
    • Example: Running qos statistics volume latency show has high latency in disk column
Cluster::> qos statistics volume latency show
Workload            ID    Latency    Network    Cluster       Data       Disk        QoS      NVRAM      Cloud
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
-total-              -     8.88ms     2.82ms     1.00us  1032.00us     5.02ms        0ms     2.00us        0ms
vol1-wid34121    34121   137.73ms     1.91ms     1.00us    22.93ms   112.89ms        0ms        0ms        0ms
vol2-wid34122    34122   133.29ms     1.82ms        0ms     2.84ms   128.62ms        0ms        0ms        0ms
vol3-wid34123    34123    78.48ms     1.96ms        0ms     7.69ms    68.83ms        0ms        0ms        0ms
vol4-wid34124    34124    50.51ms   239.00us        0ms   995.00us    49.28ms        0ms        0ms        0ms
  • Monitoring software may show a high utilization spike, such as the Aggregate view of Active IQ Unified Manager or Harvest:


Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.