How to unexport VG?

[Mousa55]

Hi All,

I am trying to build a cluster and
I am exporting one volume group frome node 1 to node 2 and all steps has been successfully
And when execute the bdf command in first node I will see
/dev/vg01 /mcsg without lvol1 but in node 2 will see
/dev/vg01/lvol1 /mcsg
But I want now to unexport this volume group, don’t need to export this VG
How I can do it that

Thanks & kind Regards

[Suraj K Sankari]

Hi,

In HP there is nothing called "unexport" there is two things export and import thats all

Suraj

[Mousa55]

Hi All,

you are not understand my questions, i mean how i can to cancel the export process in a second node, i don't need to export this VG (vg01) to second node.



Thanks & kind Regards

[Sherif A. Louis · Accepted solution]

just run:
vgchange -a n vg01
vgexport vg01

this deletes vg01 from ur system as if it was never there...

next time do a
vgexport -v -m /tmp/vg01.map -f /tmp/vg01.out -p -s vg01
from the first system move the .map and the .out file to the second
create the vg
vgimport -v -s -m /tmp/vg01.map -f /tmp/vg01.out vg01

hope this solves it

[Sajjad Sahir]

Dear nejad

deactivate the volume group from second node
vgchange - a n /dev/vgname
vgexport /dev/vgname in second node
it will remove the volume group in second node

thanks and regards

Sajjad

[Sajjad Sahir]

Dear Nejad

what u have done in node1 volume group, u created new logical volume? please clearly mention?

then only we can send the complete procedure for it, tell the volume grup is in shared mode.

thanks and regards

Sajjad Sahir

[Asif Sharif]

Hi Nejad,

Read the below doc.

Exporting a Volume Group
importing a Volume Group
http://docs.hp.com/en/5992-4589/ch03s03.html#bajbfead

Regards,
Asif Sharif

[Asif Sharif]

Hi Nejad,

Perform the following steps to vgexport & vgimport before building the cluster.

on node2 you need to run this command.

umount /mcsg
vgchange -a n vg01
vgexport -p -v -s -m /tmp/vg01.map vg01
rcp /tmp/vg01.map node2:/tmp/

On Node 1

mkdir /dev/vg01
mknod /dev/vg01/group c 64 0x0X0000(Give the same number as on node2 --check with command #ll /dev/*/group)
vgimport -v -s -m /tmp/vg01.map vg01

vgchange -a y vg01
mkdir -p /mcsg
mount /dev/vg01/lvol1 /mcsg

Regards,
Asif Sharif

[Mousa55]

Thanks for all,

Yes Mr. Sajjad I have in node 1 one volume group and one logical volume
/dev/vg01/lvol1
And I know all steps to export and import VG from node 1 to node 2
But I want to cancel this exporting and back again without export vg01
On node 2


Thanks & kind Regards

[Sajjad Sahir]

hi dear Nejad

my guess was correct u know the all steps
u want to remove the volume group from node2

u have to deactivate the volume group from node2 first then export the volume group
it will remove the volume group from u node2.


thanks and regards


Sajjad Sahir

[Mousa55]

Hi All,
"it will remove the volume group from u node2"
how i can do it? by vgremove command.

thanks

[Mousa55]

Thanks for all

[Sajjad Sahir]

deactivate the volume group first before exporting the volume by using

vgchange -a n /dev/vgname

after that export the volume group

vgexport /dev/vgname(it will remove the volume group from u system)

>>it is already mentioned in our previous thread.


thanks and regards


sajjad Sahir