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. See also logical partition (page ***), volume group (page ***), and migration installation. (page ***)
A collection of disk space from one or more disks. Each collection appears to the operating system as a single disk. Like disks, logical volumes can be used to hold file systems, raw data areas, dump areas, or swap areas. Unlike disks, logical volumes can be given a size when they are created, and a logical volume can later be expanded or reduced. Also, logical volumes can be spread over multiple disks.
On HP-UX, this term is most often used when referring to disk groups created by the Logical Volume Manager (LVM) software. Because logical RAID drives appear to the system as large SCSI disks, logical volumes might span logical drives. This can be useful, for example, to mirror data across multiple HP RAID 4Si controllers.
an allocation of space on one or more physical storage devices
a slice of the total disk space available
(1) A portion of a physical volume that contains a file system.(2) For the Tivoli Storage Manager server, 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. ow migration threshold A percentage of the storage pool capacity that specifies when the server can stop the migration of files to the next storage pool. Contrast with high migration threshold. See server migration.
That portion of a volume which is viewed by a computer operating system as a complete collection of available files. For instance, with today's WORM optical disk drives, each side of a two-sided disk is a logical volume. Source: ESADS.
A virtual disk made up of logical disks. Also called a virtual disk, volume set, or partition.
Consists of a number of physical partitions, allocated from a single volume group.
A group of logical drives logically combined to form a single large storage unit. Often abbreviated, "LV."
A section of an extended partition that contains a file system.
An area on the hard drive that has been formatted so that files can be stored there. A hard drive may contain a single or multiple volumes. Each volume appears as if it is a single hard drive. In Windows®, the first volume is referred to as "C:", while subsequent letters, such as "D:", "E:", etc., may refer to additional volumes or may identify devices such as a CD/ROM drive.
(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.) A set of logical partitions, each of which is stored on one or more physical partitions from one or more of the physical volumes of a given volume group. A logical volume has a device name (of the form /dev/hdn) and contains a single file system.
A logical volume is an abstraction of a disk partition provided by a volume manager. On Unix systems, it appears as a regular block device which can be used to hold filesystems or swap.
