This counter tracks COPY ABORTED SCSI SENSE key errors on this LUN/flow, which occur when a SCSI copy-style operation (such as an extended copy used for array-based data migration) was aborted before completing. An admin running a storage-array-assisted data migration or clone job that uses SCSI EXTENDED COPY commands would check this counter on the relevant flow if the migration job reports failure, since a nonzero count here directly implicates an aborted copy operation on that specific path. A migration job failing partway through, paired with a jump in this counter on the flow between the source and destination LUNs, confirms the copy operation itself was interrupted.