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Lag, caused by SnapMirror failures: replication transfer failed to complete

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Applies to

  • SnapMirror
  • Data ONTAP 7 Mode

Issue

  • Lag is observed for SnapMirror relationships
  • From the logs, the relationships are failing.

Destination sm-log:
dst Wed Mar 3 00:07:01 UTC source-node:source_vol destination-node:destination_vol Request (Retry)
dst Wed Mar 3 00:07:08 UTC source-node:source_vol destination-node:destination_vol Start
dst Wed Mar 3 00:07:43 UTC source-node:source_vol destination-node:destination_vol Abort (replication transfer failed to complete)

Source sm-log:
src Wed Mar 3 00:07:02 UTC source-node:source_vol destination-node:destination_vol Request (10.216.28.15)
src Wed Mar 3 00:07:30 UTC source-node:source_vol destination-node:destination_vol Start
src Wed Mar 3 00:07:33 UTC source-node:source_vol destination-node:destination_vol Abort (Transfer failed)

  • Note: Locked snapshot on the destination can also cause failure with similar errors. To confirm, check EMS log:

Thu Aug 21 21:13:02 CEST [NAME4: snapmirror.dst.snapDelErr:error]: Snapshot ****4(0142226993)_vol_Mon_Logs.29 in destination volume vol_Mon_Logs is in use, cannot delete.

If found, use "SnapMirror updates fail with error: replication transfer failed to complete" to resolve the issue.

 

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