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High Disk Utilization caused by deswizzling on SnapMirror destinations

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Applies to

  • Data ONTAP 7-mode
  • ONTAP 9
  • SnapMirror
  • NDMP
  • Unified Manager

Issue

  • Disks are highly utilized on a node with SnapMirror destination volumes or SVM DR destination. 
  • For a complete understanding on the disk utilization, please refer to How to address High Disk Utilization
  • This may cause alerts in Unified Manager similar to the example below

Source        - ClusterName:AggrName
Cluster Name  - ClusterName
Cluster FQDN  - cluster.netapp.com
Trigger Condition - MAX Data Disk Utilization value of 97% on AggrName has triggered a WARNING event based on threshold setting of 95%.

 

 

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