At this point you are ready to back up your database. You do not need to disable Replicator, but keep in mind that this backup will only be valid for this process, because in the current state you will be backing up Replicator as well.
Note: If you plan to use this backup for purposes other than this procedure, disable Replicator first on the Configure Web application page.
1.Open SQL Server Management Studio for the source server - CorporateOffice.
2.Right click the content database you wish to back up, and select All Tasks > Backup.
3.Make a full backup, as described in the SQL Server documentation.
4.Once the backup is complete, burn the backup file to DVD / CD or package for transport using other media (USB drive), and ship it to its final destination - in this case, London. Once the backup arrives in London you are ready to restore the database.
5.On the target server, open Central Administration > Application Management for the target server - LondonOffice. Then click manage content databases.
6.Select the correct web application in the top right hand corner
7.Then choose the appropriate Content Database.
8.IMPORTANT: Take note of the name of the content database, it is an important part of the process to restore the database using the exact same name.
9.Change the Database Status to Offline and select Remove Content Database.