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    • https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Snapmirror_takes_a_long_time
      A sudden increase in SnapMirror transfer time occurs. One day it takes 5 minutes for normal SnapMirror updates but the next is five hours. No contention on the network, loss, or throttling in ONTAP or...A sudden increase in SnapMirror transfer time occurs. One day it takes 5 minutes for normal SnapMirror updates but the next is five hours. No contention on the network, loss, or throttling in ONTAP or replication throttling are seen. The size of the update shows 0 bytes transferred in the SnapMirror logs (located in /etc/log/mlog/snapmirror.log via SPI):