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EMS Event maxCID.threshold.exceeded or maxCID.limit.exceeded

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Applies to

  • ONTAP 9
  • EMS
  • maxCID

Issue

The following EMS message(s) is displayed:
maxCID.threshold.exceeded or maxCID.limit.exceeded

  • The event maxCID.threshold.exceeded occurs when the indicated node in the cluster is approaching the maximum number of active/open network connections it can support.
    • In this case, clients and/or application are close to experiencing a disruption in service.
  • The event maxCID.limit.exceeded occurs when the indicated node in the cluster has exceeded the maximum number of active/open network connections it can support. 
    • In this case, clients and/or application will most likely experience a disruption in service.

Notes: 

  • In systems with <= 15 GB of physical memory, the limit is actually 10,000 (plus 10% for internal connections), so this limit is a true notification.
    • Only Cloud Volumes ONTAP, Amazon FSx for NetApp ONTAP, and ONTAP Select systems have this small of memory.
  • In systems with > 15 GB of physical memory, the limit is actually 100,000 (plus 10% for internal connections), so this limit is actually a false notification. 
  • Please check in Additional Information on how to calculate the amount of available and in-use CIDs.

 

 

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