From: "Heinz J . Mauelshagen" <mauelshagen@sistina.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] PV#s are not unique
Date: Tue Dec 11 05:35:01 2001 [thread overview]
Message-ID: <20011211123626.C27568@sistina.com> (raw)
In-Reply-To: <20011208170737.GA15685@marvin.palfrader.org>; from peter@palfrader.org on Sat, Dec 08, 2001 at 06:07:37PM +0100
Peter,
have never seen this one before ;-)
But anyway:
you need to read te first sector of
/dev/ide/host0/bus1/target1/lun0/part1
and
/dev/ide/host0/bus0/target1/lun0/part1.
Change unsigned int value (4 byte) at decimal offset 432 to 5 for bus1
and to 7 for bus0 which should give you unique numbering of PVs and store
them back to the corresponding disks.
You can achieve that for eg. with:
perl -e '$n=5;($h,$d,$t)=unpack("a432Va76",<>);print pack ("a432Va76",$h,$n,$t);' /dev/ide/host0/bus1/target1/lun0/part1 > b1.tmp;
dd is=b1.tmp of=/dev/ide/host0/bus1/target1/lun0/part1 bs=512; rm b1.tmp
perl -e '$n=7;($h,$d,$t)=unpack("a432Va76",<>);print pack ("a432Va76",$h,$n,$t);' /dev/ide/host0/bus0/target1/lun0/part1 > b0.tmp;
dd is=b0.tmp of=/dev/ide/host0/bus0/target1/lun0/part1 bs=512; rm b0.tmp
Try vgscan again.
Regards,
Heinz -- The LVM Guy --
On Sat, Dec 08, 2001 at 06:07:37PM +0100, Peter Palfrader wrote:
> Hi,
>
> I have the following problem:
>
> I tried to pvmove PEs off of a PV and to remove that PV using vgreduce.
> Unfortunatly it looks as if it did not really work. Now vgscan does not
> find my VG vg_stuff any more.
>
>
> I assume this might be the reason:
>
> | marvin:~# pvdisplay /dev/ide/host?/bus?/target?/lun0/part1 | grep '^PV#'
> | pvdisplay -- no physical volume identifier on "/dev/ide/host0/bus0/target0/lun0/part1"
> |
> | PV# 3
> | PV# 6
> | PV# 6
> | PV# 4
> | PV# 2
> | PV# 1
> | PV# 3
>
> [PV#s are not unique]
>
> All 7 PVs belond to the same volume group (VG Name: vg_stuff). Now when
> I run vgscan, it does not detect this volumegroup. pvscan shows the PVs
> as associated to an unknown VG.
>
> Any idea on how to recover from this? I'm using Logical Volume Manager
> Tools Version 1.0.1-rc4 and kernel version 2.4.12-xfs-lvm1.0.1rc4.
>
> Thanks in Advance,
> yours,
> peter
>
> --
> PGP signed and encrypted | .''`. ** Debian GNU/Linux **
> messages preferred. | : :' : The universal
> | `. `' Operating System.
> http://www.palfrader.org/ | `- http://www.debian.org/
> pvscan -- reading all physical volumes (this may take a while...)
> pvscan -- ACTIVE PV "/dev/scsi/host0/bus0/target3/lun0/part2" of VG "vg_system" [8.25 GB / 512.00 MB free]
> pvscan -- inactive PV "/dev/ide/host2/bus1/target0/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host2/bus1/target1/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host2/bus0/target0/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host2/bus0/target1/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host0/bus1/target0/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host0/bus1/target1/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- inactive PV "/dev/ide/host0/bus0/target1/lun0/part1" is associated to an unknown VG (run vgscan)
> pvscan -- total: 8 [428.54 GB] / in use: 8 [428.54 GB] / in no VG: 0 [0]
>
> vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d"
> vgscan -- creating empty "/etc/lvmtab" and "/etc/lvmtab.d"
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- scanning for all active volume group(s) first
> vgscan -- found active volume group "vg_system"
> vgscan -- reading data of volume group "vg_system" from physical volume(s)
> vgscan -- inserting "vg_system" into lvmtab
> vgscan -- backing up volume group "vg_system"
> vgscan -- checking volume group name "vg_system"
> vgscan -- checking volume group consistency of "vg_system"
> vgscan -- checking existence of "/etc/lvmtab.d"
> vgscan -- storing volume group data of "vg_system" in "/etc/lvmtab.d/vg_system.tmp"
> vgscan -- storing physical volume data of "vg_system" in "/etc/lvmtab.d/vg_system.tmp"
> vgscan -- storing logical volume data of volume group "vg_system" in "/etc/lvmtab.d/vg_system.tmp"
> vgscan -- renaming "/etc/lvmtab.d/vg_system.tmp" to "/etc/lvmtab.d/vg_system"
> vgscan -- removing special files and directory for volume group "vg_system"
> vgscan -- creating directory and group character special file for "vg_system"
> vgscan -- creating block device special files for vg_system
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: This program does not do a VGDA backup of your volume group
>
> --- Physical volume ---
> PV Name /dev/ide/host0/bus0/target1/lun0/part1
> VG Name vg_stuff
> PV Size 38.35 GB / NOT usable 2.69 MB [LVM: 125.00 KB]
> PV# 3
> PV Status available
> Allocatable yes
> Cur LV 1
> PE Size (KByte) 32768
> Total PE 1227
> Free PE 1159
> Allocated PE 68
> PV UUID d2skhN-h8w6-BzUz-joKn-Wad5-oN22-bw5O7i
>
> --- Physical volume ---
> PV Name /dev/ide/host0/bus1/target0/lun0/part1
> VG Name vg_stuff
> PV Size 57.27 GB / NOT usable 52.14 MB [LVM: 131.00 KB]
> PV# 6
> PV Status available
> Allocatable yes
> Cur LV 1
> PE Size (KByte) 32768
> Total PE 1831
> Free PE 660
> Allocated PE 1171
> PV UUID Et6EvH-2q6q-sgf1-4WgR-emQF-n4nw-o0Dx1j
>
> --- Physical volume ---
> PV Name /dev/ide/host0/bus1/target1/lun0/part1
> VG Name vg_stuff
> PV Size 57.27 GB / NOT usable 52.14 MB [LVM: 131.00 KB]
> PV# 6
> PV Status available
> Allocatable yes
> Cur LV 0
> PE Size (KByte) 32768
> Total PE 1831
> Free PE 1831
> Allocated PE 0
> PV UUID fL3U3f-yFiv-4mxi-pDId-v02W-wzZL-YDCElL
>
> --- Physical volume ---
> PV Name /dev/ide/host2/bus0/target0/lun0/part1
> VG Name vg_stuff
> PV Size 76.34 GB / NOT usable 55.22 MB [LVM: 133.00 KB]
> PV# 4
> PV Status available
> Allocatable yes (but full)
> Cur LV 1
> PE Size (KByte) 32768
> Total PE 2441
> Free PE 0
> Allocated PE 2441
> PV UUID sP1cxE-MPdJ-zAQt-jGjs-RObn-I1KF-n2MEL2
>
> --- Physical volume ---
> PV Name /dev/ide/host2/bus0/target1/lun0/part1
> VG Name vg_stuff
> PV Size 38.34 GB / NOT usable 28.38 MB [LVM: 125.00 KB]
> PV# 2
> PV Status available
> Allocatable yes
> Cur LV 0
> PE Size (KByte) 32768
> Total PE 1226
> Free PE 1226
> Allocated PE 0
> PV UUID VEx44c-TcOv-GHsR-gNip-7mWv-zU1w-UDE0w9
>
> --- Physical volume ---
> PV Name /dev/ide/host2/bus1/target0/lun0/part1
> VG Name vg_stuff
> PV Size 76.34 GB / NOT usable 23.22 MB [LVM: 130.00 KB]
> PV# 1
> PV Status available
> Allocatable yes (but full)
> Cur LV 1
> PE Size (KByte) 32768
> Total PE 2442
> Free PE 0
> Allocated PE 2442
> PV UUID EGp6Xa-CJia-693v-C1nh-t4aO-Pat8-CUJNe3
>
> --- Physical volume ---
> PV Name /dev/ide/host2/bus1/target1/lun0/part1
> VG Name vg_stuff
> PV Size 76.34 GB / NOT usable 55.22 MB [LVM: 133.00 KB]
> PV# 3
> PV Status available
> Allocatable yes (but full)
> Cur LV 1
> PE Size (KByte) 32768
> Total PE 2441
> Free PE 0
> Allocated PE 2441
> PV UUID fpFhZ5-TyYJ-FW5P-HLcV-UIdz-jYQe-62DJea
>
>
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen@Sistina.com +49 2626 141200
FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
next prev parent reply other threads:[~2001-12-11 5:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-08 11:08 [linux-lvm] PV#s are not unique Peter Palfrader
2001-12-11 5:35 ` Heinz J . Mauelshagen [this message]
2001-12-11 12:28 ` Peter Palfrader
2001-12-12 2:16 ` Heinz J . Mauelshagen
2001-12-13 23:18 ` Peter Palfrader
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