I assumed you are using Exchange 2000 because there is a storage group involved.
In order to perform a redirected restore for Exchange, there are few requirements, see below (i extracted from the admin guide)
1) The storage groups and databases must exist on the target server.
2) The storage groups and databases must have the same names as the original storage groups or databases.
3) The target databases must be configured so that they can be overwritten. Using the Exchange System Manager, right-click the database you want to overwrite, click Properties, and then on the Database tab, select This database can be overwritten by a restore.
4) The target server must have the same Organization and Administrative Group name as the source server.
ensure you have met the requirements before performing the redirected restoration.
patrick