Stop all GG extract and replicat from the directory you are upgrading from
set_ggenv ggtxd002 for example
Configure the new instance ggtxd006 for dbfs_mrct and service ora.dbfsxd01.dbfs_mrct.svc
set_ggenv ggtxd006, and check the target environment to see if its running, if not start the instance in order to check do this: hubhelp xag_stat_gginst ggtxd006