HP StorageWorks XP12000 HP StorageWorks XP Disk Array Configuration Guide: HP- - Page 23

Creating logical volumes

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9. Use vgdisplay -v to verify that the volume group was created correctly. The -v option displays the detailed volume group information. Example # vgdisplay -v /dev/vg06 - - - Volume groups - - - VG Name /dev/vg06 VG Write Access read/write VG Status available Max LV 255 Cur LV 0 Open LV 0 Max PV 16 Cur PV 1 Act PV 1 Max PE per PV 1016 VGDA 2 PE Size (Mbytes) 4 Total PE 586 Alloc PE 0 Free PE 586 Total PVG 0 - - Physical Volumes - - PV Name /dev/dsk/c6t0d0 PV Status available Total PE 586 Free PE 586 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 XP Disk Array Configuration Guide for HP-UX 23

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9.
Use
vgdisplay
–
v
to verify that the volume group was created correctly. The
–
v
option displays
the detailed volume group information.
Example
# vgdisplay
–
v /dev/vg06
- - - Volume groups - - -
VG Name
/dev/vg06
VG Write Access
read/write
VG Status
available
Max LV
255
Cur LV
0
Open LV
0
Max PV
16
Cur PV
1
Act PV
1
Max PE per PV
1016
VGDA 2
PE Size (Mbytes)
4
Total PE
586
Alloc PE
0
Free PE
586
Total PVG
0
- - Physical Volumes - - -
PV Name /dev/dsk/c6t0d0
PV Status available
Total PE 586
Free PE 586
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
XP Disk Array Configuration Guide for HP-UX
23