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Re: [linux-lvm] LVM bug



Hmmm.
Did vgscan, which is supposed to sort these reuses of VG numbers and such out,
make a difference for you?

Regards,
Heinz    -- The LVM Guy --

On Thu, Jan 24, 2002 at 04:00:08PM +0000, mark seddon wrote:
> 
> I have 2 VG's called vg00 and vg01, vg00 is the boot disk. The problem is 
> that vgdisplay displays incorrect info, ie .the wrong VG and other commands 
> such as lvcreate get confused as to which VG is which. 
> 
> Here is the partition table vg00 is hda9 and vg01 is hda7.
> 
> Disk /dev/hda: 240 heads, 63 sectors, 1559 cylinders
> Units = cylinders of 15120 * 512 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hda1             1         2     15088+  a0  IBM Thinkpad hibernation
> /dev/hda2   *         3       279   2094120    7  HPFS/NTFS
> /dev/hda3           280      1559   9676800    f  Win95 Ext'd (LBA)
> /dev/hda5           280       418   1050808+   6  FAT16
> /dev/hda6           419       557   1050808+   6  FAT16
> /dev/hda7           558       696   1050808+  8e  Linux LVM
> /dev/hda8           697       731    264568+  82  Linux swap
> /dev/hda9           732      1559   6259648+  8e  Linux LVM
> 
> here is a vgdisplay output. Note it always display hda9
> 
> [root cromlech 1.0.1-rc4]# vgdisplay vg01
> --- Volume group ---
> VG Name               vg00
> VG Access             read/write
> VG Status             available/resizable
> VG #                  1
> MAX LV                255
> Cur LV                6
> Open LV               5
> MAX LV Size           255.99 GB
> Max PV                255
> Cur PV                1
> Act PV                1
> VG Size               5.96 GB
> PE Size               4.00 MB
> Total PE              1527
> Alloc PE / Size       737 / 2.88 GB
> Free  PE / Size       790 / 3.09 GB
> VG UUID               nbprU3-BaUv-VAwF-tG5r-rW3s-uRvy-3j7S3G
> 
> 
> [root cromlech 1.0.1-rc4]# vgdisplay vg00
> --- Volume group ---
> VG Name               vg00
> VG Access             read/write
> VG Status             available/resizable
> VG #                  0
> MAX LV                255
> Cur LV                6
> Open LV               0
> MAX LV Size           255.99 GB
> Max PV                255
> Cur PV                1
> Act PV                1
> VG Size               5.96 GB
> PE Size               4.00 MB
> Total PE              1527
> Alloc PE / Size       737 / 2.88 GB
> Free  PE / Size       790 / 3.09 GB
> VG UUID               nbprU3-BaUv-VAwF-tG5r-rW3s-uRvy-3j7S3G
> 
> here is a session output which gives some more info on the problems 
> encountered. Note the lvscan output at the end showing 11 lv's 5 of which are
> duplicates.The lvmtab file seems to know which disk is which but the lv 
> cmmand set appears to get confused.
> 
> 000[root cromlech lvmtab.d]# strings vg00
> vg00
> nbprU3BaUvVAwFtG5rrW3suRvy3j7S3G
> /dev/hda9
> vg00
> localhost.localdomain1011713900
> V19lI6ULumseLKmET2KJ2cZoqoYmN6Z4
> /dev/vg00/lvol1
> vg00
> /dev/vg00/lvol2
> vg00
> /dev/vg00/lvol3
> vg00
> @xa&
> /dev/vg00/lvol4
> vg00
> @xaF
> /dev/vg00/lvol5
> vg00
> @x¡L
> [root cromlech lvmtab.d]# strings vg01
> vg01
> BSZ3UwVD67zlzW5uYp9tE5ptAR0QyH3X
> /dev/hda7
> vg01
> localhost.localdomain1011747475
> Afs43qT5mmjCFr2yr7YH8Um0WRKEPlJx
> [root cromlech lvmtab.d]# ls
> vg00  vg01
> [root cromlech lvmtab.d]# lvscan
> lvscan -- volume group "vg00" is NOT active; try -D
> lvscan -- ACTIVE            "/dev/vg00/lvol1" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol2" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol3" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol4" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol5" [300.00 MB]
> lvscan -- 5 logical volumes with 2.68 GB total in 1 volume group
> lvscan -- 5 active logical volumes
> 
> [root cromlech lvmtab.d]#
> [root cromlech lvmtab.d]# lvcreate -l50 vg00
> lvcreate -- can't create logical volume: "vg00" isn't active
> 
> [root cromlech lvmtab.d]# vgchange -ay vg00
> vgchange -- volume group "vg00" successfully activated
> 
> [root cromlech lvmtab.d]# lvcreate -l50 vg00
> lvcreate -- doing automatic backup of "vg00"
> lvcreate -- logical volume "/dev/vg00/lvol6" successfully created
> 
> [root cromlech lvmtab.d]# lvscan
> lvscan -- ACTIVE            "/dev/vg00/lvol1" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol2" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol3" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol4" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol5" [300.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol6" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol1" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol2" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol3" [1.00 GB]
> lvscan -- ACTIVE            "/dev/vg00/lvol4" [200.00 MB]
> lvscan -- ACTIVE            "/dev/vg00/lvol5" [300.00 MB]
> lvscan -- 11 logical volumes with 5.56 GB total in 2 volume groups
> lvscan -- 11 active logical volumes
> 
> 
> I'm running kernel 2.4.16 with LVM 1.0.1-rc4.
> 
> rgds
> 
> mark
> 
> 
> _______________________________________________
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> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
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                                                  Germany
Mauelshagen Sistina com                           +49 2626 141200
                                                       FAX 924446
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