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SnapMirror fails with CSM: Temporary failure due to backpressure

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snapmirror
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dp
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Applies to

  • FAS
  • V-Series
  • Clustered Data ONTAP 8.2
  • SnapMirror

Issue

Some or all SnapMirror relationships replicating to a specific destination cluster node might start failing with the following error, as seen in the snapmirror show command or /etc/log/snapmirror_audit logs.

Sun Jan 01 00:00:00 UTC 2016 CreateSnapshotDest[Jan 01 00:00:00]:12345678-1234-1234-1234-123456789012 action=Defer source=SVMSource:SourceVol destination=SVMDestination:DestinationVol status=Failure message=Failed to create Snapshot copy snapmirror.01234567-1234-1234-1234-123456789012_0123456789.2016-01-01_000000 on volume SVMSource:SourceVol.(CSM: Temporary failure due to backpressure.)

In this issue, the SnapMirrors do not recover on their own.

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