topic Re: re: LVM and no Quorum not present, or some physical volume(s) are missing. in Operating System - HP-UX

re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Thu, 16 Jun 2005 09:48:34 GMT

We have a RP3440 server running HP-UX 11i, and had to reboot after making a Database parameter change. [the database in question is UniVerse 10.1.8]

received the following error message;

vgchange: Couldn't activate volume group "/dev/vg01":
Quorum not present, or some physical volume(s) are missing.

LVM: VG 64 0x010000: Unable to initialize the latest configuration information.
LVM: VG 64 0x020000: Unable to initialize the latest configuration information.
vgchange: Couldn't activate volume group "/dev/vg02":
Quorum not present, or some physical volume(s) are missing.

vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vg01".
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vg02".

How do i fix this?

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

DCE — Thu, 16 Jun 2005 09:54:35 GMT

It appears you have lost connections to your data drives. You have a couple of items to look at

Are the drives powered up ( and were they fully powered up when the system booted)

are all the cable connections secure?

If neither of the above help, you may have lost several disks, and need to to go into repair/recovery mode.

Dave

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Thu, 16 Jun 2005 09:57:08 GMT

I have checked the array, it's an MSA1000 and visually - all looks ok, no red lights.

Is there anything I can run to verify this?

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Thu, 16 Jun 2005 10:13:19 GMT

the output from the ioscan is as follows;

root@bddev:/dev/vg01> ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
disk 0 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 1 0/1/1/0.1.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
disk 2 0/1/1/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 30
5
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 6 0/4/1/0.100.0.0.0.0.0 sdisk CLAIMED DEVICE COMPAQ MS
A1000 VOLUME
/dev/dsk/c5t0d0 /dev/rdsk/c5t0d0
disk 7 0/4/1/0.100.0.0.0.0.1 sdisk CLAIMED DEVICE COMPAQ MS
A1000 VOLUME
/dev/dsk/c5t0d1 /dev/rdsk/c5t0d1
disk 8 0/4/1/0.100.0.0.0.3.4 sdisk CLAIMED DEVICE COMPAQ MS
A1000 VOLUME
/dev/dsk/c5t3d4 /dev/rdsk/c5t3d4

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Eric Antunes — Thu, 16 Jun 2005 10:17:09 GMT

Hi,

Do you have PHKL_30607 and PHKL_32854 installed??

Regards,

Eric Antunes

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Steven E. Protter — Thu, 16 Jun 2005 10:25:50 GMT

A most unfortuneate coincidence.

I would check with the administrator of the disks if this is on a SAN and make sure the ownership hasn't been toggled to a different world wide name.

The database parameter change surely did not cause this problem.

SEP

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Devesh Pant_1 — Thu, 16 Jun 2005 17:53:50 GMT

Please try to rescan the disks in. Also if you could provide the output of ioscan -fn so that the HBAs are also seen.

How does the lvmtab look. do a strings /etc/lvmtab and post the output for that too

thanks
Devesh

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Eknath — Thu, 16 Jun 2005 20:38:41 GMT

Hi Gurcharan,

Compare you "ioscan -fnC disk" output with "strings /etc/lvmtab" output. check for the disk devices and confirm that all the devices mentioned in /etc/lvmtab are available in ioscan output. If something is missing that means some of your hard disks are not detected. Check for connections, power to storage etc.

Cheers!!!
eknath

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

D Block 2 — Thu, 16 Jun 2005 22:15:23 GMT

Quorum implies that -> more than half of your volumes are missing.

can you back-out the Database change you made, and try another reboot..

verify you can see the phyical disks:
# ioscan -kfnC disk
# ioscan -fnC disk

also, maybe rebuild any special devices:
# insf -ev

is this a "shared" database with another server?

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Fri, 17 Jun 2005 05:23:32 GMT

Eric,

there is only patch PHKL_30607 installed on the system.

swlist -l patch | grep PHKL_30607
PHKL_30607.CORE-KRN 1.0 OS-Core.CORE-KRN applied
PHKL_30607.CORE2-KRN 1.0 OS-Core.CORE2-KRN applied

# PHKL_30607 1.0 VxVM,EMC,PM,vPar,slpq,KRS
,DUMP,LVM,VM,DaS,IF
# PHKL_30607.C-INC 1.0 ProgSupport.C-INC
applied
# PHKL_30607.CORE-KRN 1.0 OS-Core.CORE-KRN
applied
# PHKL_30607.CORE2-KRN 1.0 OS-Core.CORE2-KRN
applied
PHKL_30607.C-INC 1.0 ProgSupport.C-INC applied.

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Fri, 17 Jun 2005 05:41:37 GMT

Devesh,

I have attached the output as requested.

Could it be a patching issue? looking at a similar thread, we are missing some patches...

http://forums1.itrc.hp.com/service/forums/questionanswer.do?admit=716493758+1119004090278+28353475&threadId=881154

[scroll to the bottom], patch PHKL_30607 is already installed on the system.

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Fri, 17 Jun 2005 05:42:51 GMT

vgscan output

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Fri, 17 Jun 2005 05:43:41 GMT

ioscan bddev

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Gurcharan Sahota_2 — Fri, 17 Jun 2005 05:50:02 GMT

Tom,

have tried running a vgchange, results are as follows;

root@bddev:/> vgchange -a y /dev/vg01
vgchange: Volume group "/dev/vg01" does not exist in the "/etc/lvmtab" file.
root@bddev:/> vgchange -a y /dev/vg02
vgchange: Couldn't activate volume group "/dev/vg02":
Quorum not present, or some physical volume(s) are missing.

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Eric Antunes — Fri, 17 Jun 2005 06:06:27 GMT

It seems your lvmtab is bad... Try this:

# mv /etc/lvmtab /etc/lvmtab.old
# vgscan -a

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

shankar_3 — Fri, 17 Jun 2005 08:10:00 GMT

Hi Gurcharn,

As per output..

1.In the system vg01 and vg02 while activating its queery the PV belongs to VG.

2.Not able to find those so you have recevied above message.

possible way to find miised PV

1. Take the ouput of /etc/lvmtab

I have seen the your attachement in that vg01 entry not there and vg02 having one PV

It may possible that LVM header information get corrupted.

There could be other problem like PV's powerfailed, storage detached .

do following steps.

1.ioscan -fnC disk
2.mv /etc/lvmtab /etc/lvmtab.old
3.vgscan -v
4.activate all vgs
5.vgcfgbackup vgxx (taking all vg info backups)

Cheers,
Shankar

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Eric Antunes — Tue, 21 Jun 2005 03:42:43 GMT

Hi,

Did "vgscan -a" worked?

Regards,

Eric Antunes

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Sunil Talreja — Mon, 15 Aug 2005 12:17:14 GMT

I am having exact same problem, My machine model is same as yours.

Were you able to solve the problem.

Re: re: LVM and no Quorum not present, or some physical volume(s) are missing.

Sunil Talreja — Mon, 15 Aug 2005 15:39:34 GMT

Since I didn't have any data, I just wiped everything and did a rebuilt of Volume group, Logical Volume and File system. Every thing seems to be working fine !!!