Yes, SnapMirror transfers can fail if the source and destination are not compatible versions It is recommended to suspend SnapMirror activities during an upgrade Ontap version on source and destinatio...Yes, SnapMirror transfers can fail if the source and destination are not compatible versions It is recommended to suspend SnapMirror activities during an upgrade Ontap version on source and destination need to be compatible according to SnapMirror compatibility table Upgrade requirements for SnapMirror How to pause SnapMirror for ONTAP upgrade or maintenance operation How to check SnapMirror compatibility between ONTAP versions. What version of ONTAP can I upgrade to?