Hi Gary,
Below command will down the replication path & which you can check in "admin who is down", But it will continue to use Replication buffer.
"sap_disable_replication <primary logical host name>, <database>"
Make sure you have respective buffer space available to hold the transaction log for the period.
By doing this You can re-materialized the same instance without any extra efforts.
or
Alternatively you can just stop replication & agent services on DR Site, While you turn them ON it will automatically sync with primary server. So you DR would be available without any extra efforts.
NOTE : In both case Please make sure you have Replication buffer Disk available on primary sides to hold the transaction log, else a respective data loss would be there.
Regards
Sumit Sharma