cplv command
Purpose
Copies the contents of a logical volume to a new logical volume.
Syntax
To Copy to a New Logical Volume
cplv [ -vg VolumeGroup ] [ -lv NewLogicalVolume | -prefix Prefix ] SourceLogicalVolume
To Copy to an Existing Logical Volume
cplv [ -f ] SourceLogicalVolume DestinationLogicalVolume
Description
Attention: Do not copy from a larger logical volume containing
data to a smaller one. Doing so results in a corrupted file system
because some data is not copied.
The cplv command
copies the contents of SourceLogicalVolume to a new or existing
logical volume. The SourceLogicalVolume parameter can be a
logical volume name or a logical volume ID. The cplv command
creates a new logical volume with a system-generated name by using
the default syntax. The system-generated name is displayed.
Note: The cplv command
cannot copy logical volumes which are in the open state, including
logical volumes that are being used as backing devices for virtual
storage.
Flags
| Flag name | Description |
|---|---|
| -f | Copies to an existing logical volume without requesting user confirmation. |
| -lv NewLogicalVolume | Specifies the name to use, in place of a system-generated name, for the new logical volume. Logical volume names must be unique systemwide names, and can range from 1 to 15 characters. |
| -prefix Prefix | Specifies a prefix to use in building a system-generated name for the new logical volume. The prefix must be less than or equal to 13 characters. A name cannot be a name already used by another device. |
| -vg VolumeGroup | Specifies the volume group where the new logical volume resides. If this is not specified, the new logical volume resides in the same volume group as the SourceLogicalVolume. |
Examples
- To copy the contents of logical volume fslv03 to a new logical
volume, type:
The new logical volume is created, placed in the same volume group as fslv03, and named by the system.cplv fslv03 - To copy the contents of logical volume fslv03 to a new logical
volume in volume group vg02, type:
The new logical volume is created, named, and added to volume group vg02.cplv -vg vg02 fslv03 - To copy the contents of logical volume lv02 to a smaller, existing
logical volume, lvtest, without requiring user confirmation, type:
cplv -f lv02 lvtest
