Possible uses for the multi-volume support feature include the following:
Controlling where files are stored so that specific files or file hierarchies can be assigned to different volumes
Placing the VxFS intent log on its own volume to minimize disk head movement and thereby increase performance.
Separating Storage Checkpoints so that data allocated to a Storage Checkpoint is isolated from the rest of the file system
Separating file system metadata from file data
Encapsulating volumes so that a volume appears in the file system as a file; this is particularly useful for databases that are running on raw volumes
Migrating files off a volume so that the volume can be replaced or serviced
Implementing a storage optimization application that periodically scans the file system and modifies the allocation policies in response to changing patterns of storage use