What does the "Keep any partially transferred data (optional)" checkbox mean?

Applies to

• ONTAP 9
• SnapMirror
• ONTAP System Manger

Answer

• The "Keep any partially transferred data (optional)" checkbox appears when aborting a SnapMirror transfer from the System Manger.
• This option determines whether to keep the data that has already been partially transferred during the current SnapMirror operation.
• This is equivalent to the -hard option of command  snapmirror abort .

Detail behavior:

• Box Checked: The partially transferred data is keeped, and the next SnapMirror transfer will resume from the last checkpoint. 
• Equivalent with command: snapmirror abort -destination-path <destination-path>

Example: If the transfer is aborted at 17.38KB, the next transfer will resume from this checkpoint.

::> snapmirror abort -destination-path cluster3_svm1:cluster3_svm1_projects
Operation is queued: snapmirror abort for the relationship with destination "cluster3_svm1:cluster3_svm1_projects".

::> snapmirror show -destination-path cluster3_svm1:cluster3_svm1_projects  -fields snapshot-checkpoint
source-path                          destination-path                     snapshot-checkpoint
------------------------------------ ------------------------------------ -------------------
cluster2_svm1:cluster2_svm1_projects cluster3_svm1:cluster3_svm1_projects 17.38KB 

::> snapmirror show
                                                                       Progress
Source            Destination Mirror  Relationship   Total             Last
Path        Type  Path        State   Status         Progress  Healthy Updated
----------- ---- ------------ ------- -------------- --------- ------- --------
cluster2_svm1:cluster2_svm1_projects
                XDP  cluster3_svm1:cluster3_svm1_projects
                                  Snapmirrored
                                          Transferring   17.38KB 

• Box Unchecked: The partially transferred data is discarded, and the next SnapMirror transfer will start from the beginning with a new snapshot. 
• Equivalent with command: snapmirror abort -destination-path <destination-path> -hard true

Example: If the transfer is aborted, the next transfer will start from 0B.

::> snapmirror abort -destination-path cluster3_svm1:cluster3_svm1_projects -hard true 
Operation is queued: snapmirror abort for the relationship with destination "cluster3_svm1:cluster3_svm1_projects".

::> snapmirror show -destination-path cluster3_svm1:cluster3_svm1_projects  -fields snapshot-checkpoint
source-path                          destination-path                     snapshot-checkpoint
------------------------------------ ------------------------------------ -------------------
cluster2_svm1:cluster2_svm1_projects cluster3_svm1:cluster3_svm1_projects -  

::> snapmirror show
                                                                       Progress
Source            Destination Mirror  Relationship   Total             Last
Path        Type  Path        State   Status         Progress  Healthy Updated
----------- ---- ------------ ------- -------------- --------- ------- --------
cluster2_svm1:cluster2_svm1_projects
            XDP  cluster3_svm1:cluster3_svm1_projects
                              Snapmirrored
                                      Transferring   0B        false   03/24 13:25:06

Additional Information