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Extremely slow snapmirror transferring

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Applies to

  • ONTAP 9
  • SnapMirror
  • SVM DR
  • Memory exhaustion

Issue

  • Extremely slow SnapMirror transferring
  • All conditions on SnapMirror relationships hang in transferring on ONTAP 9.4 and later are true except for the following two conditions. 
    • SnapMirror global replication throttles are disabled by viewing through the options replication.* command on the source cluster.
    • Rebooting the source node cannot resolve the issue.
      • NOTE: Although rebooting the source node cannot resolve the issue, the node panic will occur due to a virtual memory leak and an auto-generated core dump log can help to figure out the root cause.

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