Hi,

on a AIX-5.1-HACMP-4.4.1-test-server, I want to enlarge an existing
volumegroup.
The concerning volumegroup was created on a physical volume, which is a
device from an EMC Symmetrix-DMX.
The physical volume and therfore also the volumegroup has initially
25GB. Now I have enlarged the Symmetrix-Device and mapped it on the
same physical volume-device.

Now my question:
How can I enlarge the physical volume and the volume group without
moving the data on another device?

THX!!

Hi

You need to varyoff the volume group then run

chvg -g <vgname>

man chvg

for more info

HTH

Steve

> You need to varyoff the volume group then run

OK

>
> chvg -g <vgname>

It seems, that on AIX5.1 this option of "chvg" doesn´t exist.


But how do I enlarge the physicalvolume first?

hi, you will have to check whether there is a patch for the chvg option
on 5.1 (don't have any here)

output from the man page

-g
Will examine all the disks in the volume group to see if
they have grown in size. If any disks have grown in size attempt to add
additional PPs
to PV. If necessary will determine proper 1016 multiplier
and conversion to big vg. Notes:
1 The user might be required to execute varyoffvg and
then varyonvg on the volume group for LVM to see the size change on the
disks.
2 There is no support for re-sizing while the volume
group is activated in classic or enhanced concurrent mode.
3 There is no support for re-sizing for the rootvg.

Steve

> hi, you will have to check whether there is a patch for the chvg option
> on 5.1 (don't have any here)

On the IBM-download-page for AIX I didn´t found a patch for the
command. I updated the server to the last fix-release. But the option
isn´t still there.