Remote Storage Services is a disk management feature in Windows 2000 Server and Windows Server 2003 that allows your network to treat a tape drive as an extension of your hard disk. It lets Windows automatically move files that haven't been used recently to tape, and it keeps those files readily available to users. Here are some issues you may encounter with Remote Storage Services, along with some troubleshooting advice.
Fast Guide: Remote Storage Service
Remote Storage Service troubleshooting tips
Reconfiguring Remote Storage Services for new media types
Ensure data is available for Remote Storage Services
Make the most of Remote Storage Service in Windows 2003
Restore Remote Storage Service database in WinServer 2003
Restoring the Remote Storage Service database