topic Re: Error in Volume Group creation. in Operating System - HP-UX

Error in Volume Group creation.

Alex Almaraz — Mon, 21 Jan 2008 18:29:46 GMT

HPUX > 11.00
N4000 Server

Hi Managers,

I want to create a volume group from an FC60 LUN (RAID 5) but it fails with the attached errors.
I ran the vgdisplay -v and it displays the information for the existing groups but sends the following warning:

vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vg09".

I tried recreating the /etc/lvmtab with the vgscan command without success, because the vgscan writes again the path to the "/dev/vg09" and "/dev/dsk/c5t0d4".

Error:

pvcreate: The physical volume "/dev/dsk/c5t0d4" is already recorded in the "/etc/lvmtab" file.

What can I do? Do I need to activate that Volume Group in order to delete it? Do I need to unbind that LUN?

I just want to configure that "unused" disk space.

Thanks in advance.

Re: Error in Volume Group creation.

TwoProc — Mon, 21 Jan 2008 18:33:55 GMT

I think you need to activate the volume group first.

$> vgchange -a y vg09

Re: Error in Volume Group creation.

Tim Nelson — Mon, 21 Jan 2008 18:44:13 GMT

According to your attachment two things are happening.

1) this disk had lvm structure, hence the warning

2) looks like the disk is already used and the SAM status is wrong or the disk was removed improperly.

post the below outputs
1) vgdisplay -v|grep c5t0d4
2) pvdisplay -v /dev/dsk/c5t0d4
3) strings /etc/lvmtab ( look for c5t0d4 to see what vg it thinks it is in )
4) vgdisplay -v the vg found in the about lvmtab search.

Post some of this info. We can take it from there once we know what we are dealing with.

Re: Error in Volume Group creation.

Mridul Shrivastava — Mon, 21 Jan 2008 18:52:18 GMT

What I feel is this disk is already part of vg09 hence there is an entry in lvmtab and when u run vgscan it gets populated again with the same information.

Now the thing is do you want to keep vg09?
a) If yes then activate the vg using
vgchange -a y vg09

If there are any errors then post the errors.

b) If no then export the vg09 using
vgexport /dec/vg09
then use pvcreate -f to initialise the PV then the standard procedure for vg creation.

Re: Error in Volume Group creation.

Alex Almaraz — Mon, 21 Jan 2008 19:11:12 GMT

Thanks everbody for your fast reponses, I have just activated the vg09 sucessfully and it has historical information that could be useful. I'll relocate it and reuse the disk space. For some reason in the past, the vg09 didn't bring up after a reboot (I guess), so, I'm done with this.

Best regards

Re: Error in Volume Group creation.

Alex Almaraz — Mon, 21 Jan 2008 19:16:48 GMT

The vg09 was activated.