/etc/lvmtab file has wrong info. How to fix?

[Johns Manville]

Here you go. Thanks.

# vgdisplay -v /dev/vg12
--- Volume groups ---
VG Name /dev/vg12
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 32
Cur PV 2
Act PV 1
Max PE per PV 12800
VGDA 2
PE Size (Mbytes) 8
Total PE 127
Alloc PE 127
Free PE 0
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

--- Logical volumes ---
LV Name /dev/vg12/lvol1
LV Status available/syncd
LV Size (Mbytes) 1016
Current LE 127
Allocated PE 127
Used PV 1


--- Physical volumes ---
PV Name /dev/dsk/c17t0d5
PV Status available
Total PE 127
Free PE 0
Autoswitch On
Proactive Polling On

---------------

# lvdisplay -v /dev/vg12/lvol1
--- Logical volumes ---
LV Name /dev/vg12/lvol1
VG Name /dev/vg12
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 1016
Current LE 127
Allocated PE 127
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default

--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c17t0d5 127 127

--- Logical extents ---
LE PV1 PE1 Status 1
00000 /dev/dsk/c17t0d5 00000 current
00001 /dev/dsk/c17t0d5 00001 current
00002 /dev/dsk/c17t0d5 00002 current
00003 /dev/dsk/c17t0d5 00003 current
00004 /dev/dsk/c17t0d5 00004 current
00005 /dev/dsk/c17t0d5 00005 current
00006 /dev/dsk/c17t0d5 00006 current
00007 /dev/dsk/c17t0d5 00007 current . . .

---------

:# strings /etc/lvmtab
/dev/vg00
ST5DE
/dev/dsk/c1t2d0
/dev/dsk/c2t2d0
/dev/vg12
hD|e
/dev/dsk/c17t0d5
/dev/vg11
/dev/dsk/c17t1d4
/dev/vg06
/dev/dsk/c17t0d1
/dev/vg07
/dev/dsk/c17t1d1
/dev/dsk/c17t1d3
/dev/dsk/c17t0d2
/dev/dsk/c17t1d2
/dev/dsk/c17t1d0
/dev/vg08
hBtZ
/dev/dsk/c17t0d3
/dev/vg05
ST5D
/dev/dsk/c17t0d0
/dev/vg13
ST5E58
/dev/dsk/c17t0d7
/dev/vg09
ST5J
/dev/dsk/c17t0d4

-----------

This is the one to check:

# strings vg12.conf
CONFIG01
/dev/vg12
/dev/rdsk/c12t0d1
/dev/rdsk/c17t0d6
LVMREC01E
hD|e7E
hD|e
LVMREC01
ST5L
hD|e
hD|e
hD|e7
ST5L
VGDA0001
k>c<
VGSA0001L

[hbhua_231]

hi, Johns Manville.

i find a way to resolve your problem which

i had met many days ago.

1) vgrecuce -f vg12

to reduce ghost pv

2)vgcfgbackup /dev/vg12

if /etc/lvmtab file is ok, i think no need
to do the command vgscan.

hope this could help you.

By the way,this command is no harm to your
product server.

--------------------------------------------
oot@L2000:/etc/lvmconf#lvreduce -k -m 0 /dev/vg00/mirror 1
Logical volume "/dev/vg00/mirror" has been successfully reduced.
vgcfgbackup: /etc/lvmtab is out of date with the running kernel:Kernel indicates 2 disks for "/dev/vg00"; /etc/lvmtab has 1 disks.
Cannot proceed with backup.
root@L2000:/etc/lvmconf#lvdisplay /dev/vg00/mirror
--- Logical volumes ---
LV Name /dev/vg00/mirror
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 160
Current LE 10
Allocated PE 10
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default

root@L2000:/etc/lvmconf#vgreduce -f vg00
PV with key 1 sucessfully deleted from vg vg00
Repair done, please do the following steps.....:
1. save /etc/lvmtab to another file
2. remove /etc/lvmtab
3. use vgscan(1m) -v to re-create /etc/lvmtab
4. NOW use vgcfgbackup(1m) to save the LVM setup
root@L2000:/etc/lvmconf#
root@L2000:/etc/lvmconf#vgcfgbackup vg00
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf