Microsoft Knowledge Base Article 317369 contains the following summary:
You can use the Remote Storage service to create virtual disk storage from a tape or other storage media. If you use this service,
files that you access infrequently are moved to remote storage media. Remote Storage volumes are well suited for data that you
need to access only occasionally.
This step-by-step article describes how to set up and use Remote Storage.
|•||Remote Storage is available only on Windows 2000 Server-based networks.|
|•||You cannot run Remote Storage on a Windows 2000 Professional-based computer.|
|•||You cannot install Remote Storage on a Windows 2000 Advanced Server-based computer in a server cluster configuration. Remote Storage does not failover to the other computer node.|
|•||You must be logged on with administrative permissions to use Remote Storage.|
|•||You must verify that a sufficient number of tapes are available in a free media pool. (Use Removable Storage to perform this task.)|
|•||You must verify that the volumes that are managed by Remote Storage are formatted with the version of NTFS file system that is used in Windows 2000.|
If you use Windows 2000 Remote Storage, you can increase disk space on a server without adding more hard disks. You may still want to
use additional disk space even though hard disks are now very inexpensive. You can use Remote Storage to use tape or optical drives
to extend an NTFS volume.
Remote Storage automatically monitors the amount of free space that is available on local hard disks. If the free space drops to a specified level, Remote Storage automatically moves infrequently used files to the Remote Storage media to provide the free disk space that you need. Files are still readily available after you move them to the remote storage media.
If you view the files that you store by using Remote Storage, the files look as if they are still located on the hard disk and not on the remote storage media. After you open the file, you may notice a slightly longer file load time and you may receive a message that states the file is being recalled. The data is automatically moved to faster disk drives if required.
Remote Storage manages the Remote Storage process automatically and requires intervention only if the remote storage media is offline.