Increase Mount-Point Size Oracle VM

[root@node11g ~]# df -kh
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_node1-lv_root
                       24G   22G   57M 100% /
tmpfs                1012M  272K 1011M   1% /dev/shm
/dev/sda1             485M   53M  408M  12% /boot
Softwares             200G   88G  113G  44% /media/sf_Softwares
/dev/sr0               55M   55M     0 100% /media/VBOXADDITIONS_4.2.6_82870


[root@node11g ~]# df -hP
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_node1-lv_root   24G   22G   57M 100% /
tmpfs                1012M  272K 1011M   1% /dev/shm
/dev/sda1             485M   53M  408M  12% /boot
Softwares             200G   88G  113G  44% /media/sf_Softwares
/dev/sr0               55M   55M     0 100% /media/VBOXADDITIONS_4.2.6_82870


1. create a fixed size disk using oracle vm storage option.


2. [root@node11g ~]# fdisk /dev/sde
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xe3757b20.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
         switch off the mode (command 'c') and change display units to
         sectors (command 'u').

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1889, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-1889, default 1889):
Using default value 1889

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

[root@node11g ~]#  pvcreate /dev/sde1
  Physical volume "/dev/sde1" successfully created

Add the physical volume to the existing volume group using the vgextend command. use  df -h to find the name of the volume group.

[root@node11g ~]# df -hP
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_node1-lv_root   24G   22G   57M 100% /
tmpfs                1012M  272K 1011M   1% /dev/shm
/dev/sda1             485M   53M  408M  12% /boot
Softwares             200G   88G  113G  44% /media/sf_Softwares
/dev/sr0               55M   55M     0 100% /media/VBOXADDITIONS_4.2.6_82870


[root@node11g ~]# vgextend vg_node1 /dev/sde1
  Volume group "vg_node1" successfully extended

Get the free space available on the physical volume type vgdisplay [volume group]  and use pvdisplay to check if everything is fine or not .

 [root@node11g ~]# vgdisplay vg_node1
  --- Volume group ---
  VG Name               vg_node1
  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               42.04 GiB
  PE Size               4.00 MiB
  Total PE              10763
  Alloc PE / Size       7059 / 27.57 GiB
  Free  PE / Size       3704 / 14.47 GiB
  VG UUID               6hNRBO-pgiT-5EYj-jT3i-1jJs-Z5vw-OrOO7A
 
 [root@node11g ~]# pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               vg_node1
  PV Size               27.58 GiB / not usable 3.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              7059
  Free PE               0
  Allocated PE          7059
  PV UUID               jQ2lO6-W7Qu-t6Ac-8f8Z-u7cn-o12I-ofBwIy
 
  --- Physical volume ---
  PV Name               /dev/sde1
  VG Name               vg_node1
  PV Size               14.47 GiB / not usable 1.74 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              3704
  Free PE               3704
  Allocated PE          0
  PV UUID               MuSKdx-Ebz3-DFO2-jrNV-356l-1xCl-JyBVhA
 
[root@node11g ~]#
Extend the logical volume by the amount of free space:

[root@node11g ~]# lvdisplay
  --- Logical volume ---
  LV Path                /dev/vg_node1/lv_root
  LV Name                lv_root
  VG Name                vg_node1
  LV UUID                0Uz7cN-4BS5-hvMI-8Myb-Gf0V-j8gd-AbhS9x
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2014-12-16 05:08:21 -0500
  LV Status              available
  # open                 1
  LV Size                23.70 GiB
  Current LE             6066
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0
 
  --- Logical volume ---
  LV Path                /dev/vg_node1/lv_swap
  LV Name                lv_swap
  VG Name                vg_node1
  LV UUID                f2LAgl-3iwl-m3tW-lyDE-39wx-CHQ6-gc2Evk
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2014-12-16 05:08:27 -0500
  LV Status              available
  # open                 2
  LV Size                3.97 GiB
  Current LE             1016
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:1
 
[root@node11g ~]# pvscan
  PV /dev/sda2   VG vg_node1   lvm2 [27.57 GiB / 0    free]
  PV /dev/sde1   VG vg_node1   lvm2 [14.47 GiB / 14.47    free]


[root@node11g ~]# lvextend /dev/vg_node1/lv_root /dev/sde1
  Extending logical volume lv_root to 38.07 GiB
  Logical volume lv_root successfully resized

[root@node11g ~]# resize2fs /dev/vg_node1/lv_root
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/vg_node1/lv_root is mounted on /; on-line resizing required
old desc_blocks = 2, new_desc_blocks = 3
Performing an on-line resize of /dev/vg_node1/lv_root to 9980928 (4k) blocks.
The filesystem on /dev/vg_node1/lv_root is now 9980928 blocks long.

[root@node11g ~]# df -kh
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_node1-lv_root
                       38G   23G   15G  60% /
tmpfs                1012M  486M  526M  48% /dev/shm
/dev/sda1             485M   53M  408M  12% /boot
Softwares             200G   88G  113G  44% /media/sf_Softwares
/dev/sr0               55M   55M     0 100% /media/VBOXADDITIONS_4.2.6_82870