How to eliminate invisible disk from vg00

[Carme Torca]

Hi,
I want to eliminate one disk from vg00, but it is not ok.


-- Logical volumes ---
LV Name /dev/vg00/lvol11
VG Name /dev/vg00
LV Permission read/write
LV Status available/stale
Mirror copies 1
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 20480
Current LE 1280
Allocated PE 2560
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/c2t0d0 1280 1280

--- Logical extents ---
LE PV1 PE1 Status 1 PV2 PE2 Status 2
00000 /dev/dsk/c2t0d0 01833 current ??? 01833 stale
00001 /dev/dsk/c2t0d0 01834 current ??? 01834 stale
00002 /dev/dsk/c2t0d0 01835 current ??? 01835 stale

And when I do

# lvreduce -m 0 /dev/vg00/lvol11 /dev/dsk/c2t1d0

lvreduce: Warning: couldn't query physical volume "/dev/dsk/c2t1d0":
The specified path does not correspond to physical volume attached to
this volume group
lvreduce: Warning: couldn't query all of the physical volumes.
lvreduce: Physical volume "/dev/dsk/c2t1d0" does not belong
to volume group "/dev/vg00".
Logical volume "/dev/vg00/lvol11" is not reduced.

I know thant c2t1d0 is the disk, because I have list of the disk and

# lvlnboot -v
lvlnboot: Couldn't query physical volume "/dev/dsk/c2t1d0":
The specified path does not correspond to physical volume attached to
this volume group

Could anyone help me?
Thanks a lot of,
Carmen.

[Jeeshan]

Hi Carmen

>>dev/dsk/c2t0d0 1280 1280

You reduced the wrong disk

your lvdisplay output shows the another disks.

[Sajjad Sahir]

Dear Carme

do strings /etc/lvmtab file
then u can confirm this disk is not belogns to any volume group.if it is not belongs to any volume group,
do ioscan -fnc disk identify the disk

then remove it
rmsf -H then hardware path

thanks and regards

Sajjad Sahir

[Sajjad Sahir]

lvreduce: Physical volume "/dev/dsk/c2t1d0" does not belong
to volume group "/dev/vg00".

see this one also from u thread which means this disk is not belong the volume group
vg00
so identify correctly then remove it


thanks and regards

Sajjad Sahir

[Carme Torca]

# strings /etc/lvmtab
/dev/vg00
j/dev/dsk/c2t0d0
/dev/dsk/c2t1d0


but at the ioscan does not appers:


# ioscan -fnCdisk
Class I H/W Path Driver S/W State H/W Type Description
=========================================================================
disk 0 0/0/2/0.0.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-N
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0

[Jeeshan]

then how would you reduce that.

Is it damaged or plugged out?

[Sajjad Sahir]

Dear carmen
please vgscan command then again check wiht ioscan -funC disk
and please revert back soon

Sajjad

[Carme Torca]

The disk its damage.... it was at vg00, but now (I don't know what is wrong at the disk).

I only want to remove the configuration and leave it ok. because when this disk c2t1d0 its in the vg00 and the lvols has this information ...

[Sajjad Sahir]

Dear Camre strings /etc/lvmtab file showing it is in vg00
can u try this command
lvreduce -m 0 /dev/vg00 /dev/dsk/c2t1d0

thanks and regards

Sajjad

[Carme Torca]

Hi,

But its not possible with lvreduce...

# lvreduce -m 0 /dev/vg00/lvol1 /dev/dsk/c2t1d0

lvreduce: Warning: couldn't query physical volume "/dev/dsk/c2t1d0":
The specified path does not correspond to physical volume attached to
this volume group
lvreduce: Warning: couldn't query all of the physical volumes.
lvreduce: Physical volume "/dev/dsk/c2t1d0" does not belong
to volume group "/dev/vg00".
Logical volume "/dev/vg00/lvol1" is not reduced.

# strings /etc/lvmtab
/dev/vg00
j/dev/dsk/c2t0d0
/dev/dsk/c2t1d0
#

[Jeeshan · Accepted solution]

have you tried with?

#vgreduce -l pv_path

[Carme Torca]

Perfect!!

I have done:


# lvreduce -m 0 /dev/vg00/lvolXX

with every lvol

After that:

1. save /etc/lvmtab to another file
2. remove /etc/lvmtab
3. use vgscan(1m) -v to re-reate /etc/lvmtab
4. NOW use vgcfgbackup(1m) to save the LVM setup