topic Re: I want to delete non active volume group in Operating System - HP-UX

I want to delete non active volume group

cbozlagan — Fri, 08 Jun 2007 08:37:53 GMT

vgremove doesn't work if vg is not active.

That vg has lv inside

Thanks

Re: I want to delete non active volume group

Redhat — Fri, 08 Jun 2007 08:39:40 GMT

simply run vgexport

Re: I want to delete non active volume group

Patrick Wallek — Fri, 08 Jun 2007 08:42:29 GMT

Actually the VG must be inactive for vgremove to work.

The real reason vgremove isn't working is because the VG still has an LV in it. What you must do if you want to go that route is:

# vgchange -a y /dev/vg??
# lvremove /dev/vg??/lvol?
# vgchange -a n /dev/vg??
# vgremove /dev/vg??

But, if you want the real easy way, and are absolutely sure nothing is in use, then use vgexport as said above.

# vgexport /dev/vg??
will get rid of everything, including all /dev/vg??/* files.

Re: I want to delete non active volume group

cbozlagan — Fri, 08 Jun 2007 08:53:06 GMT

I executed vgscan -pv but it gave me some
'Unable to match' warning.
You can see messages below.
How can I correct these problems?

Thanks

# vgscan -pv

vgscan: The physical volume "/dev/dsk/c0t6d0" is already recorded in the "/etc/lvmtab" file.
vgscan: The physical volume "/dev/dsk/c3t6d0" is already recorded in the "/etc/lvmtab" file.
vgscan: The physical volume "/dev/dsk/c13t2d0" is already recorded in the "/etc/lvmtab" file.
Couldn't stat physical volume "/dev/dsk/c1t2d0":
Invalid argument

/dev/vg00
/dev/dsk/c0t6d0
/dev/dsk/c3t6d0
/dev/dsk/c13t2d0

Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c13t0d0
/dev/dsk/c13t0d6

Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c13t0d1
/dev/dsk/c13t0d2
/dev/dsk/c13t0d3
/dev/dsk/c13t0d4
/dev/dsk/c13t0d7
/dev/dsk/c13t1d0
/dev/dsk/c13t1d1
/dev/dsk/c13t1d2
/dev/dsk/c13t1d3
/dev/dsk/c13t1d4
/dev/dsk/c13t1d5
/dev/dsk/c13t1d6

Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c13t0d5

Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c13t1d7

Re: I want to delete non active volume group

Patrick Wallek — Fri, 08 Jun 2007 09:00:27 GMT

So why are you running vgscan? What exactly are you trying to do?

Re: I want to delete non active volume group

Redhat — Fri, 08 Jun 2007 09:00:31 GMT

Pls send the "output" file after executing the following command

script /tmp/output
strings /etc/lvmtab
vgdisplay -v
ioscan -fnC disk
then press cntl+d

Re: I want to delete non active volume group

cbozlagan — Fri, 08 Jun 2007 09:06:42 GMT

Hi Manojit Das,

I attached output file

Re: I want to delete non active volume group

cbozlagan — Fri, 08 Jun 2007 09:09:01 GMT

Hi patrick,

SAP NetWeaver installation document asks me to execute vgscan command.

Thanks.

Re: I want to delete non active volume group

Orhan Biyiklioglu — Fri, 08 Jun 2007 09:13:20 GMT

It seems that you have already exported four different volume groups.

vgexport command removes the vg info from the /etc/lvmtab file, deletes the associated device files including the vg_name directory but keeps that info untouched on the physical volume (on the disk)

So if you want you can recreate (undelete) the same vgs using vgimport or clean the vg info from the disk using pvcreate -f commandon each disk.

If you are sure you do not need the data on the unmatched disks and plan to use them in a new volume group just take the second option.

hth.

Orhan

Re: I want to delete non active volume group

Redhat — Fri, 08 Jun 2007 09:20:29 GMT

Pls send the strings /etc/lvmtab output.

vgdisplay -v output showing only vg00 !!

chech the output of #ll /dev/vg*/group

Pls give us more feedback regarding what you are actually want to do?