HP XP10000 Creating logical volumes, Lvremove, Lvextend, Lvreduce, To create logical volumes

Creating logical volumes

Use these commands for logical volume configuration:

lvremove	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
lvextend	Increases the size of an existing logical volume.
	Example: lvextend –L size /dev/vgnn/lvolx
lvreduce	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

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 –Lcommand 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

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