Storage Foundation for Windows lets you mount a volume at any empty folder on a local NTFS volume. SFW assigns a drive path to the volume rather than a drive letter. Drive paths are useful because they eliminate the 24-drive-letter limit on hard-disk volume names. (Drive letters A and B are reserved for floppy drives.) The volume can be a partition, a logical drive that was created in Disk Administrator, or a dynamic volume.

For example, you can mount the C:\Temp folder as another drive to provide additional disk space for temporary files.

The only restrictions are that the folder you mount the volume to must be empty and it must be on an NTFS volume on a local computer. You cannot mount volumes to network-accessible drives. You can, however, assign multiple drive paths to a single volume.

Mounted drive folders are distinguished from ordinary folders by having a drive icon instead of the normal folder icon.

You can assign the drive path when you create the volume with the New Volume wizard at the Assign Drive Letter screen. You can also use the command Change Drive Letter and Path after the volume is created. A volume that already has a drive letter assigned can also have one or more drive paths. It does not have to be an unlabeled volume.

The Change Drive Letter and Path command is used to mount a volume.