Unable to extract PVID/VGID from LVM disk

[Ra Jose]

I added a disk to a VG (vg04). The disk is not assigned to any LVs. I did pvcreate, vgextend and then trying to check its PVID and VGID from the techniques I got from the forum.
# xd -j8200 -N16 -td /dev/dsk/c32t5d2
I get following
0000000 -1134413123 1174322453 0 0
0000010
I am wondering why I am getting this -ve (1134413123) and my 3rd and 4th fields are zero (which should have been my vgid). Can anyone shed light on what wrong I might have done or my checking is not right.

Below I have given another way -
# echo "0x2008?4D" | adb /dev/dsk/c32t5d2
2008: -1134413123 1174322453 0 0

Thank you all for your responses.
Rajos

[Patrick Wallek]

Have you tried doing a 'vgdisplay -v vg04' to see what disks the VG things it has? If that indicates that the appropriate disks are there then I'm not sure what you gain by checking the PVID / VGID on the disk itself.

[Ra Jose]

vgdisplay -v vg04 does show this disk and also it's alternate link. I want to make sure the vgid put on this disk is same as other disks in the VG. In this case, I have 4 other disks and all show same vgid. This disk does not show the same vgid after adding it to the VG( shows zero).
Rajos

[Court Campbell]

Do a vgcfgbackup or a vgchange -a y on vg04. It looks like the vgra has not been updated. The kernel lvm structures and the disk lvm structures don't always get updated at the same time.

[Court Campbell]

Also try this:

xd -An -j8200 -N16 -tx /dev/dsk/c32t5d2

[Ra Jose]

Tried both what Campbell has suggested. No change. The vgid still does not show up.
Rajos

[Court Campbell]

can you post the output from:

strings /etc/lvmtab

[James R. Ferguson]

Hi:

I've used both techniques in the past. I prefer the first, since it doesn't rely on reading what the kernel thinks but rather what's written on the physical disk.

Make _sure_ that you have the proper device file. The 'vgid' of zero would suggest that the device does _not_ belong to a volume group.

Regards!

...JRF...

[Court Campbell]

James and I are thinking the same thing.

[Tommy_6]

Have you tried using sam? Go into Disks and File Systems, then Volume Groups. View more information on the Volume group and see if everything looks alright. Hope this helps!

[Ra Jose]

% > pvdisplay /dev/dsk/c24t4d2
--- Physical volumes ---
PV Name /dev/dsk/c32t5d2
PV Name /dev/dsk/c42t5d2 Alternate Link
VG Name /dev/vg04
PV Status available
Allocatable yes
VGDA 2
Cur LV 0
PE Size (Mbytes) 4
Total PE 2157
Free PE 2157
Allocated PE 0
Stale PE 0
IO Timeout (Seconds) 60
Autoswitch On

% > strings /etc/lvmtab

/dev/vg00
/dev/dsk/c2t0d0
/dev/dsk/c2t1d0
/dev/vg04
/dev/dsk/c32t3d0
/dev/dsk/c32t3d1
/dev/dsk/c32t3d2
/dev/dsk/c32t3d3
/dev/dsk/c42t3d0
/dev/dsk/c42t3d1
/dev/dsk/c42t3d2
/dev/dsk/c42t3d3
/dev/dsk/c32t5d2
/dev/dsk/c42t5d2

[Ra Jose]

Sorry about it.
The pvdisplay out is for
% > pvdisplay /dev/dsk/c32t5d2
Rajos

[Ra Jose]

Here is what I did to get the correct VGID.
% > pvchange -a n /dev/dsk/c32t5d2
% > pvchange -a n /dev/dsk/c42t5d2
% > vgcfgrestore -n vg04 /dev/rdsk/c32t5d2
% > pvchange -a y /dev/dsk/c32t5d2
% > pvchange -a y /dev/dsk/c42t5d2
% > xd -j8200 -N16 -td /dev/dsk/c32t5d2
0000000 -1134413123 1174322453 639308353 1047182634
0000010

Thank you all for your suggestions.
Rajos.