Dot Hill Systems II 200 FC Manuale Utente
Appendix I Configuring an HP Server Running the HP-UX Operating System I-7
In the output of vgdisplay, the Total PE field displays the number of physical
extents in the volume group.
extents in the volume group.
The size of each physical extent is displayed in the PE Size field (the default is 4
Mbyte), so the total capacity of this volume group is 2167 x 4 Mbyte = 8668 Mbyte.
Mbyte), so the total capacity of this volume group is 2167 x 4 Mbyte = 8668 Mbyte.
The Alloc PE field shows the number of physical extents allocated to logical volumes.
At this point, the Alloc PE field is zero because we have not assigned any of this
volume group’s capacity to logical volumes.
At this point, the Alloc PE field is zero because we have not assigned any of this
volume group’s capacity to logical volumes.
I.8
Creating a Logical Volume
To create a logical volume within the volume group, use the lvcreate command with
the -L option to specify the size of the logical volume in megabytes. The logical
volume size should be a multiple of the physical extent size. In this example, a logical
volume of 4092 Mbyte is created:
the -L option to specify the size of the logical volume in megabytes. The logical
volume size should be a multiple of the physical extent size. In this example, a logical
volume of 4092 Mbyte is created:
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
2167
VGDA
2
PE
Size
(Mbytes)
4
Total
PE
2167
Alloc
PE
0
Free
PE
2167
Total
PVG
0
#
lvcreate
-L
4092
/dev/vg02