Creating Logical Volumes - HP XP1024 System Configuration Manual

Creating logical volumes

Use these commands for logical volume configuration:
lvremove
lvextend
lvreduce
CAUTION:
Data within the file system can be lost after execution of lvreduce.
Create logical volumes after you create volume groups. A logical volume must be
created for each new SCSI disk device
To create logical volumes:
1. Use the lvcreate –L command to create a logical volume.
Specify the volume size (in megabytes) and the volume group for the new logical
volume. HP-UX assigns the logical volume numbers automatically (lvol1, lvol2,
lvol3). Use the following capacity values for the size parameter:
OPEN-K = 1740
OPEN-3 = 2344
OPEN-8 = 7004
OPEN-9 = 7004
OPEN-E = 13888
OPEN-L = 34756
Deletes a logical volume. Any file system attached to the logical
volume must be unmounted before executing the lvremove
command.
Example
lvremove /dev/vgnn/lvolx
Increases the size of an existing logical volume.
Example
lvextend –L size /dev/vgnn/lvolx
Decreases the size of an existing logical volume. Any file system
attached to the logical volume must be unmounted before
executing the lvreduce command.
Example
lvreduce –L size /dev/vgnn/lvolx
Disk Array XP operating system configuration guide: HP-UX
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