A SharePoint 2003 portal site can be redirected to another site in the farm. A team site can be redirected to another WSS site. The target portal site or team site where you want to redirect the restore must already exist on the specified Web server. The target portal site or team site must also have the same database structure as the source site.
Note the following when you redirect a portal or a team site:
You can only redirect the restore of portals or team sites and these components must be restored at the database level. You can restore Configuration databases and Single Sign-on databases back to the original location only. Individual SharePoint items must be restored to their original site.
You can redirect a restore of a portal within the same farm. The SQL database host and the SharePoint host must be the same. A redirected restore is not supported if the SQL databases exist across multiple SQL hosts.
You must restore all SQL databases in one operation at the same time.
To redirect a restore of a SharePoint 2003 portal site or team site
Create the target portal site or the WSS site on the target Web server. The target site must have the same database structure as the source site.
Choose File > Select Files and Folders to Restore > from Normal Backup.
In the All Folders pane, expand Microsoft SharePoint Resources.
In the Contents of pane, select the Web application, portal site, or team site to redirect.
In the Restore Marked Files dialog box, click the Microsoft SharePoint tab.
Click SharePoint 2003 portal sites or SharePoint 2007 web applications.
In the URL box, type the URL of the portal site or team site to which you want to redirect the restore. For example:
In the Front end web server name box, indicate the hostname of the Web server.
More Information
Specifying the server, client, and the policy type for a SharePoint Server restore operation