----------------------------------------------------------------------------
Añadimos una nueva partición:

[root@lcgwiki01 ~]# fdisk

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 3
First cylinder (392-2610, default 392): 
Using default value 392
Last cylinder or +size or +sizeM or +sizeK (392-2610, default 2610): 
Using default value 2610

Command (m for help): p

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14         391     3036285   8e  Linux LVM
/dev/sda3             392        2610    17824117+  8e  Linux LVM

Command (m for help): 


----------------------------------------------------------------------------
Ejecutar partprobe (inform the OS of partition table changes)

[root@lcgwiki01 ~]# partprobe 


----------------------------------------------------------------------------
Creamos el volumen físico:

[root@lcgwiki01 ~]# pvcreate -M2 /dev/sda3

  Physical volume "/dev/sda3" successfully created


----------------------------------------------------------------------------
Añadimos la partición creada en el grupo de volúmenes:

[root@lcgwiki01 ~]# vgextend VolGroup00 /dev/sda


----------------------------------------------------------------------------
Comprobamos la ampliación del grupo:

[root@lcgwiki01 ~]# vgdisplay 
  --- Volume group ---
  VG Name               VolGroup00
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               19.84 GB
  PE Size               32.00 MB
  Total PE              635
  Alloc PE / Size       92 / 2.88 GB
  Free  PE / Size       543 / 16.97 GB
  VG UUID               SECnZp-0Rf6-2nVl-J55r-XThG-6mS6-11pO2a
 

----------------------------------------------------------------------------
Ampliamos el volumen lógico con 15GB más:

[root@lcgwiki01 ~]# lvextend -L +15G /dev/VolGroup00/LogVol00
  Extending logical volume LogVol00 to 16.94 GB
  Logical volume LogVol00 successfully resized


----------------------------------------------------------------------------
Comprobamos que ha ampliado el volumen lógico:

[root@lcgwiki01 ~]# lvdisplay 
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                jMwLTY-gMA3-lzev-IZ3X-3MTR-Q1mg-UeXgOI
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                16.94 GB
  Current LE             542
  Segments               2
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:0


----------------------------------------------------------------------------
Ampliamos el sistema de ficheros:

[root@lcgwiki01 ~]# resize2fs /dev/VolGroup00/LogVol00 
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/VolGroup00/LogVol00 is mounted on /; on-line resizing required
Performing an on-line resize of /dev/VolGroup00/LogVol00 to 4440064 (4k) blocks.
The filesystem on /dev/VolGroup00/LogVol00 is now 4440064 blocks long.

[root@lcgwiki01 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       17G  1.8G   14G  12% /
/dev/sda1              99M   16M   79M  17% /boot
tmpfs                 252M     0  252M   0% /dev/shm
[root@lcgwiki01 ~]# 


[root@lcgwiki01 ~]# lvdisplay 
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                jMwLTY-gMA3-lzev-IZ3X-3MTR-Q1mg-UeXgOI
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                16.94 GB
  Current LE             542
  Segments               2
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:0
   
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  LV UUID                3Xdiyt-xLrL-iz1J-fGf4-vyeB-5OLf-86RaRL
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                960.00 MB
  Current LE             30
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:1
   
[root@lcgwiki01 ~]# 
[root@lcgwiki01 ~]# 
[root@lcgwiki01 ~]# 
[root@lcgwiki01 ~]# vgdisplay 
  --- Volume group ---
  VG Name               VolGroup00
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  5
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               19.84 GB
  PE Size               32.00 MB
  Total PE              635
  Alloc PE / Size       572 / 17.88 GB
  Free  PE / Size       63 / 1.97 GB
  VG UUID               SECnZp-0Rf6-2nVl-J55r-XThG-6mS6-11pO2a