Follow these steps to redirect a restore job to an existing site on a Web server in a farm.
To redirect a restore job for SharePoint 2003
Select the SharePoint resources you want to restore.
You can restore Configuration databases and Single Sign-on databases back to the original location only.
On the Properties pane, under Destination, select Microsoft SharePoint Redirection.
Click SharePoint 2003 portal sites or SharePoint 2007 web applications.
In the URL or web application name field, type the URL of the site to which you want to restore the data.
For example, http://portalsite1 or https://portalsite1. To restore to a SharePoint 2003 site, the site must already exist.
In the Front-end web server name field, type the name of the Web server on which the site resides.
You must create the destination SharePoint Portal Server 2003 portal site or Windows SharePoint Services site on the specified Web server with the same database structure as the source site before you run the restore job.
Set additional restore options on the Properties pane, or start the restore job.
To bring the databases online, verify that the Bring restored databases online and Reconnect previous database links options are selected in the Microsoft SharePoint settings. When you restore portal sites or Windows SharePoint Services sites, these options also re-establish the link between the restored databases and their corresponding sites.
If you restore full or differential backup sets in separate restore jobs, clear these options for all jobs except the last job. You should select these options for the last restore job in the sequence. You may be prompted to insert any media that you have already used.