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Scheduled update is triggered right after initialization of async-mirror relationship

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Applies to

  • ONTAP 9
  • SnapMirror with async-mirror policy type having no schedule

Issue

  • snapmirror show-history shows scheduled-update is run as soon as the initialize even if there is no SnapMirror schedule is configured

::> snapmirror show-history -destination-path svm_dst:vol_dst

Destination Path     Source Path          Operation         Start Time          End Time            Result
-------------------- -------------------- ----------------- ------------------- ------------------- ----------
svm_dst:vol_dst      svm_src:vol_src      initialize        6/23/2023 02:00:06  6/23/2023 02:00:08  success
svm_dst:vol_dst      svm_src:vol_src      scheduled-update  6/23/2023 02:00:06  6/23/2023 02:00:08  success

  • snapmirror_audit log indicates that initialization is finished with Note=Scheduled update operation is queued. then scheduled update runs

Initialize[Jun 23 02:00:06]:9fb2ba99-1169-11ee-b143-0050569d287c Operation-Uuid=ac806e96-1169-11ee-b143-0050569d287c Group=none Operation-Cookie=0 action=Start source=svm_src:vol_src destination=svm_dst:vol_dst
Initialize[Jun 23 02:00:06]:9fb2ba99-1169-11ee-b143-0050569d287c Operation-Uuid=ac806e96-1169-11ee-b143-0050569d287c Group=none Operation-Cookie=0 action=End source=svm_src:vol_src destination=svm_dst:vol_dst status=Success bytes_transferred=18248 network_compression_ratio=1.0:1 transfer_desc=Logical Transfer with Storage Efficiency - Optimized Directory Mode Note=Scheduled update operation is queued.
ScheduledUpdate[Jun 23 02:00:06]:9fb2ba99-1169-11ee-b143-0050569d287c Operation-Uuid=dd7b3dfb-757c-4a59-8a62-ced53b15351b Group=none Operation-Cookie=0 action=Start source=svm_src:vol_src destination=svm_dst:vol_dst
ScheduledUpdate[Jun 23 02:00:06]:9fb2ba99-1169-11ee-b143-0050569d287c Operation-Uuid=dd7b3dfb-757c-4a59-8a62-ced53b15351b Group=none Operation-Cookie=0 action=Info No new Snapshot copy to transfer from source svm_dst:vol_src.
ScheduledUpdate[Jun 23 02:00:06]:9fb2ba99-1169-11ee-b143-0050569d287c Operation-Uuid=dd7b3dfb-757c-4a59-8a62-ced53b15351b Group=none Operation-Cookie=0 action=End source=svm_src:vol_src destination=svm_dst:vol_dst status=Success bytes_transferred=0 network_compression_ratio=1.0:1

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