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
can not copy logical volumes which are in the open state, including logical
volumes that are being used as backing devices for virtual storage.
Flags
| -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:
cplv fslv03
The new logical volume is created, placed in
the same volume group as fslv03, and named by the system.
- To copy the contents of logical volume fslv03 to a new logical volume
in volume group vg02, type:
cplv -vg vg02 fslv03
The new logical
volume is created, named, and added to volume group vg02.
- To copy the contents of logical volume lv02 to a smaller, existing logical
volume, lvtest, without requiring user confirmation, type:
cplv -f lv02 lvtest