Volume Group Operation in AIX and HP_UNIX

HP_Unix:

1) #  vgdisplay <volume group name> : Display information about the volume group.

2) # vgdisplay -v <volume group name> : Display more detailed information on the volume group.

3) # vgchange -a y /dev/<VG name> : To activate a volume group.

4) # vgchnage -a n /dev/<VG name> : To deactivate a volume group.

5) # vgexport  /dev/<VG name> : To remove a volume group.

6) # vgimport /dev/<VG name> : To import an exported volume group.

IBM AIX:

1) # lsvg : List all the volume groups.

2) # lsvg -o : List all the active volume groups.

3) # lsvg <volume group name> : Information about the Volume group.

4) # lsvg -l <volume group name> : Information about the logical volumes in the volume group.

5) # lsvg -p <volume group name> : Information about the physical volumes in the volume group.

6) # lsvg -m <volume group name> : Information about the mirroed volume group.

7) # varyoffvg <volume group name> : To deactivate a volume group.

8) # varyonvg <voluume group name> : To activate a volume group.

9) # exportvg  <voluume group name> : To remove a volume group.

10) # importvg <voluume group name> : To import a volume group.

Volume Group Creation in HP_Unix and IBM AIX

HP-UNIX:

1) # ioscan -funC disk : Locate the disk you want to use for the creation of volume group.

2) # strings /etc/lvmtab : Shows the physical volumes that are part of LVM.

3) For Hp Unix Version 11:

We need to create a device file called "group" for the volume group which we are about create. The "group" file is a character based file with the major  "64" default for Hp_ux and minor number of out choice "0x010000"

# cd /dev/

# mkdir <volume group name>

# chown root:root <volume group name>

# chmod 755 <volume group name>

# cd /volumegroup name

# mknod /dev/volume group name/group c 64 0x010000

# chown root:sys group

# chmod 755 group

4) # pvcreate /dev/rdsk/c#t#d# : PV creation.

5) # vgcreate -s <PE size> /dev/<volume group name> /dev/dsk/c#t#d#

6) # vgdisplay : View the volume group created.

7) # strings /etc/lvmtab : Verify the same.

AIX:

1) # cfgmgr

2) # lspv :  Select the physical volumes in the none state.

3) # mkvg -y <volume group name> -s <PP size> <Physical volumes....>

4) # lsvg  : List all the volume group.

5) # cd /etc/vg/

6) # ls -l : Verify a "Zero Byte" file is created with the prefix "vg.<VG ID>" has been created..