topic Re: vgchange error in Operating System - HP-UX

vgchange error

dictum9 — Tue, 09 May 2006 17:00:56 GMT

I get the following error when I am running vgchange:

# vgchange -a y /dev/vgdev
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c9t0d0":
The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: The path of the physical volume refers to a device that does not

I then removed the /etc/lvmtab and ran vgchange -v to recreate it:

# vgscan -v
Creating "/etc/lvmtab".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vg00".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vgdev".

/dev/vg00
/dev/dsk/c2t0d0s2
/dev/dsk/c2t1d0s2

/dev/vgdev
/dev/dsk/c9t0d0
/dev/dsk/c9t0d1
/dev/dsk/c9t0d2
/dev/dsk/c9t0d3
/dev/dsk/c9t0d4
/dev/dsk/c9t0d5
/dev/dsk/c9t0d6
/dev/dsk/c9t0d7

Scan of Physical Volumes Complete.

I also tried rmsf and insf on the hardware path for the disks it's having problem with, but no success. What's going on?

Re: vgchange error

dictum9 — Tue, 09 May 2006 17:03:07 GMT

The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query physical volume "/dev/dsk/c9t0d7":
The specified path does not correspond to physical volume attached to this volume group
vgchange: Warning: couldn't query all of the physical volumes.
vgchange: Couldn't activate volume group "/dev/vgdev":
Quorum not present, or some physical volume(s) are missing.

Re: vgchange error

Jakes Louw — Tue, 09 May 2006 21:26:40 GMT

Dear etc
Did you try "ioscan -fn", then "insf -e",
and then try the vgchange?
Any previous messages in /var/adm/syslog/syslog.log?

Re: vgchange error

Enrico P. — Wed, 10 May 2006 02:53:04 GMT

Hi,
try with

vgreduce -l vg00 /dev/dsk/c9t0d7

Enrico

Re: vgchange error

Chan 007 — Wed, 10 May 2006 02:58:28 GMT

Hi,

Try doing diskinfo /dev/rdsk/c9t0d0 and see whether you can see the disktype/info.

As suggested try ioscan and insf -e.

Some SAN disks need to stop and start the agent before doing the ioscan and insf. Try that. or If you can't see any of this does its trick then sometimes a reboot mightbe required.

Chan

Re: vgchange error

Ninad_1 — Wed, 10 May 2006 03:02:49 GMT

etc,

Please check ioscan -fnC disk
Is the disk /dev/dsk/c9t0d7 reported and showed CLAIMED ?
What does diskinfo /dev/rdsk/c9t0d7 show
If disk exists, what does pvdisplay -v /dev/dsk/c9t0d7 show ?
Are there any messages in /var/adm/messages or /var/adm/syslog/syslog.log or OLDsyslog.log on disk failures ?
In your 2 posts there are 2 different disks mentioned - c9t0d0 and c9t0d7 - is the problem reported for all disks in vgdev VG ? Then is the path corresponding to controller c9 fine ?

Please check and revert the status.

Regards,
Ninad

Enrico - the disk is in /dev/vgdev VG and not vg00.

Re: vgchange error

Enrico P. — Wed, 10 May 2006 03:10:28 GMT

Hi etc,
sorry for the answer ...
I didn' t understand the problem.

Enrico

Re: vgchange error

dictum9 — Wed, 10 May 2006 11:46:17 GMT

I already tried all that:

1) Reboot
2) ioscan -the disk is claimed
3) disk info - nothing abnormal
4) rmsf and insf -e
5) syslog.log - nothing abnormal
6) dmesg - nothing abnormal
7) Nothing abnormal in pvdisplay, vgdisplay, lvdisplay, and so on.

More info from vgchange:

vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c9t0d0": I/O error
vgchange: I/O error
vgchange: I/O error
vgchange: I/O error
vgchange: Warning: couldn't query physical volume "/dev/dsk/c9t0d0":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query physical volume "/dev/dsk/c9t0d1":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query physical volume "/dev/dsk/c9t0d2":
The specified path does not correspond to physical volume attached to
this volume group

Re: vgchange error

Torsten. — Wed, 10 May 2006 11:52:07 GMT

Check the path to the storage array and its configuration. If this is a SAN device, check security settings also.

Re: vgchange error

Darrel Louis — Wed, 10 May 2006 11:52:25 GMT

Hi,

What is the output of "strings /etc/lvmtab"?
Can you just do a vgexport of vgdev and than do a vgscan again.

Darrel

Re: vgchange error

Sheriff Andy — Wed, 10 May 2006 12:26:20 GMT

This disk "/dev/dsk/c9t0d0", is it a new disk, or is there any data on it?

I once created a new disk from our EVA and had a similar issue where I couldn't vgimport it in. I ended up recreating the disk and importing it in again with no problems.

Re: vgchange error

Senthil Kumar .A_1 — Wed, 10 May 2006 12:55:06 GMT

Hi,

Can you check the output of

diskinfo /dev/rdsk/c9t0d0

Regards,
Senthil Kumar .A

Re: vgchange error

Chan 007 — Wed, 10 May 2006 13:11:03 GMT

Hi,

until you do vgchange -a y /dev/vg01, vgdisplay won't work? Are you sure that you are looking to the correct vgs.

Can you post diskinfo, ioscan, vgchange, pvdisplay & vgdisplay as attachment.

Chan

Re: vgchange error

dictum9 — Wed, 10 May 2006 14:54:47 GMT

OK, there is definitely a problem with the disk "/dev/dsk/c9t0d0"

I cannot find any reference to it anywhere, either in ioscan or diskinfo, etc.

Well, the device file in /dev/rdsk/ does exist however.

Re: vgchange error

dictum9 — Wed, 10 May 2006 14:57:05 GMT

Correction -

ioscan -funC disk does NOT show it

ioscan -fnC disk shows it

A device file problem?

Re: vgchange error

Chan 007 — Wed, 10 May 2006 15:08:43 GMT

Hi etc,

All you have is files in /dev/dsk but not in /dev/rdsk.

Now rmsf maynot work in this, all you do is either move /dev/dsk or remove all by rm /dev/dsk.

Now try ioscan -fCdisk & insf -e

Your problem will be solved.

All the best

Chan