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SnapMirror lag due to network bandwidth bottleneck

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Applies to

  • ONTAP 9.x
  • SnapMirror
  • SolidFire to Ontap Replication
  • Lag

Issue

  • Increase in SnapMirror lag - relationships are not completing within their schedules and intermittently slow.
  • Schedule updates fails with error "Scheduled update failed to start. (Scheduled update was delayed because another SnapMirror operation for the relationship is in progress.)"
  • Chart or data from customer's network team shows that available bandwidth is being saturated
  • Manual throughput calculation also shows the available bandwidth is being fully utilized
  • For SolidFire to Ontap Replication following errors are seen in Active IQ:
    • disconnectedSnapMirrorEndpoint - One or more of the SnapMirrorEndpoints is disconnected. Disconnected SnapMirrorEndpoints: [#]

 

 

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