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    • https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/Snapshot_copy_is_temporarily_renamed_with_the_prefix_snapmirrorPreSE
      A Snapshot copy on the SnapMirror destination with the prefix snapmirrorSE or snapmirrorPreSE Fri Dec 2 02:45:27 HKT 2022 StorageEfficientSnapshotRotation[Dec 2 02:45:26]:31ee605a-13cb-11ed-88f8-xxxxx...A Snapshot copy on the SnapMirror destination with the prefix snapmirrorSE or snapmirrorPreSE Fri Dec 2 02:45:27 HKT 2022 StorageEfficientSnapshotRotation[Dec 2 02:45:26]:31ee605a-13cb-11ed-88f8-xxxxx Operation-Uuid=de191f02-fe9f-45a4-9fed-xxxxx Group=none Operation-Cookie=0 action=Info Delete of original renamed snapshot "snapmirrorPreSE.D_0030.2022-12-02_0030" failed on destination volume "xxx", primary module 0, error 0, secondary module 102, error 16.
    • https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Slow_SnapMirror_or_volume_move_performance_and_low_throughput_due_to_BRE_LRSE_Throttling
      Low throughput during SnapMirror transfers due to Replication Engine throttling Spread out the SnapMirror transfers to reduce impact Initiate SnapMirror transfers during times of lower user workloads ...Low throughput during SnapMirror transfers due to Replication Engine throttling Spread out the SnapMirror transfers to reduce impact Initiate SnapMirror transfers during times of lower user workloads and lower CPU activity Check to see if the global throttling mechanism is in use for SnapMirror SnapMirror low throughput due to throttling If the replication traffic is going over a WAN, you can enable Network Compression for those SnapMirror policies to improve performance