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High CPU utilization when Continuous Segment Cleaning is enabled

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Applies to

  • VMware Datastores
  • CIFS
  • FAS 8040
  • ONTAP 9.7P9
  • Continuous Segment Cleaning (CSC)
  • SSD aggregates

Issue

  • Performance issue (latency) in VMware datastores and in CIFS access
  • High CPU utilization in the node most of the time
  • Node is constantly reading data from SSD aggregates but reads don't correspond with user workload


 

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