(1) A collection of physical partitions organized into logical partitions, all contained in a single volume group. Logical volumes are expandable and can span several physical volumes in a volume group.
(2) The combined space on all volumes for either the database or the recovery log. The database is one logical volume and the recovery log is one logical volume.
(3) The storage medium associated with a single logical unit (LU). An LVOL typically resides on one or more storage devices.