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[linux-lvm] LVM2 crash - unable to get the volume group up and running again



Hi,

My LVM2 volume just stopped working out of the blue. I added a new disk to the volume group a while ago and added it to a logical volume, and used xfs_growfs to extend the partition.

All off a sudden a few weeks later, it stopped working. Upon reboot I get
this error message:

device-mapper: device /dev/hdd1 too small for target
device-mapper: dm-linear: Device lookup failed
device-mapper: error adding target to table

I have alot of important data on these disks, are there any way to get the volume up running again, or get some data back from any of the individual disks? The problems seems to be on the /dev/hdd disk. I've tried searcing in google, but havent found anything specific about a problem like mine.


I run gentoo with the 2.6.13-gentoo-r5 kernel.

  LVM version:     2.01.09 (2005-04-04)
  Library version: 1.01.03 (2005-06-13)
  Driver version:  4.4.0

  device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel redhat com


# pvscan
  PV /dev/hda4   VG vg   lvm2 [101.94 GB / 0    free]
  PV /dev/hdb1   VG vg   lvm2 [111.79 GB / 0    free]
  PV /dev/hdc1   VG vg   lvm2 [186.30 GB / 0    free]
  PV /dev/hdd1   VG vg   lvm2 [186.31 GB / 0    free]
  PV /dev/hdh1   VG vg   lvm2 [186.31 GB / 0    free]
  PV /dev/hdg1   VG vg   lvm2 [186.31 GB / 0    free]
  PV /dev/hde    VG vg   lvm2 [232.88 GB / 0    free]
  Total: 7 [1.16 TB] / in use: 7 [1.16 TB] / in no VG: 0 [0   ]

# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "vg" using metadata type lvm2

pvscan and vgscan appears to run fine, but when I try to activate the volumegroup, I get the following error:

# vgchange -ay
  device-mapper ioctl cmd 9 failed: Invalid argument
  Couldn't load device 'vg-public'.
  1 logical volume(s) in volume group "vg" now active

(and when I do this, the device-mapper also logs the 3 error lines I pasted earlier in this mail again)


Below are the outpots that pvs, vgdisplay and pvdisplay give me

# pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/hda4  vg   lvm2 a-   101.94G    0
  /dev/hdb1  vg   lvm2 a-   111.79G    0
  /dev/hdc1  vg   lvm2 a-   186.30G    0
  /dev/hdd1  vg   lvm2 a-   186.31G    0
  /dev/hde   vg   lvm2 a-   232.88G    0
  /dev/hdg1  vg   lvm2 a-   186.31G    0
  /dev/hdh1  vg   lvm2 a-   186.31G    0


# vgdisplay
  --- Volume group ---
  VG Name               vg
  System ID
  Format                lvm2
  Metadata Areas        7
  Metadata Sequence No  37
  VG Access             read/write
  VG Status             resizable
  MAX LV                7
  Cur LV                1
  Open LV               0
  Max PV                255
  Cur PV                7
  Act PV                7
  VG Size               1.16 TB
  PE Size               4.00 MB
  Total PE              305111
  Alloc PE / Size       305111 / 1.16 TB
  Free  PE / Size       0 / 0
  VG UUID               LQ6EXt-RBjK-qqBB-tf7M-vXwL-pHZR-uGN63q

# vgdisplay
  --- Volume group ---
  VG Name               vg
  System ID
  Format                lvm2
  Metadata Areas        7
  Metadata Sequence No  37
  VG Access             read/write
  VG Status             resizable
  MAX LV                7
  Cur LV                1
  Open LV               0
  Max PV                255
  Cur PV                7
  Act PV                7
  VG Size               1.16 TB
  PE Size               4.00 MB
  Total PE              305111
  Alloc PE / Size       305111 / 1.16 TB
  Free  PE / Size       0 / 0
  VG UUID               LQ6EXt-RBjK-qqBB-tf7M-vXwL-pHZR-uGN63q

exillion jian # pvdisplay
  --- Physical volume ---
  PV Name               /dev/hda4
  VG Name               vg
  PV Size               101.94 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              26097
  Free PE               0
  Allocated PE          26097
  PV UUID               rN48fI-G7jz-BR60-tIDi-Bh9Z-jNGu-OY8xLg

  --- Physical volume ---
  PV Name               /dev/hdb1
  VG Name               vg
  PV Size               111.79 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              28617
  Free PE               0
  Allocated PE          28617
  PV UUID               bZWnTI-vk9p-LFv6-ZsNB-d5Kb-5oNz-6oxr4U

  --- Physical volume ---
  PV Name               /dev/hdc1
  VG Name               vg
  PV Size               186.30 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              47694
  Free PE               0
  Allocated PE          47694
  PV UUID               tXAjzt-nKR5-nZ42-g2Md-bfQH-PGta-w54Zjm

  --- Physical volume ---
  PV Name               /dev/hdd1
  VG Name               vg
  PV Size               186.31 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              47695
  Free PE               0
  Allocated PE          47695
  PV UUID               P67tnA-CUSV-41XG-RkTY-JfVd-0Zvw-nXY5T9

  --- Physical volume ---
  PV Name               /dev/hdh1
  VG Name               vg
  PV Size               186.31 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              47695
  Free PE               0
  Allocated PE          47695
  PV UUID               ux9OP1-oXdK-I5Kk-Ua0i-hlKk-Qayr-lMEddZ

  --- Physical volume ---
  PV Name               /dev/hdg1
  VG Name               vg
  PV Size               186.31 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              47695
  Free PE               0
  Allocated PE          47695
  PV UUID               EDySOS-lUhE-Z7mp-fiGq-HGm0-rN2k-RXO7cO

  --- Physical volume ---
  PV Name               /dev/hde
  VG Name               vg
  PV Size               232.88 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              59618
  Free PE               0
  Allocated PE          59618
  PV UUID               8lQNTw-923u-WoOB-wQn9-Zbnw-rZ1c-pDR3d3


--
Jian Xu


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