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Cluster shared volumes (CSV) hosted on NetApp going into paused state

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Applies to

  • ONTAP
  • FCP
  • iSCSI
  • Windows Server Failover Clustering
  • Hyper-V

Issue

  • During Network interruption cluster resources are observed going into paused state although they are fiber channel resources.
  • CSV auto pauses with “STATUS_CONNECTION_DISCONNECTED” this indicates a problem with MS cluster Redirected IO  (including any metadata IO).
Example:
Event 5120: Cluster Shared Volume 'XYZ' has entered a paused state because of 'STATUS_CONNECTION_DISCONNECTED(c000020c)'. All I/O will temporarily be queued until a path to the volume is re-established.

 

 

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