Good evening everybody.
I have been using LVM to manage my storage for quite some time now, without
any trouble. Recently i started getting io errors on one Volume. I decided
to unmount the Volume to run an fsck.
Linux wouldn't let me umount the Volume, kept complaining it was still in
use. After failing to figure out what had still open files on the device
(using fuser and lsof) i decided to "lazy" umount it.
That worked fine, and i was able to run the fsck.
The check finished, fixed a couple lost Inodes. The usual.
But after the check linux decided not to let me remount the Volume either -
neither into its original location, nor a different one.
I rebooted.
After the reboot Linux dropped me into a Filesystem Recovery shell, as
vgscan failed upon boot.
I removed the entry for the Volume from fstab, and rebooted (I was lacking
some kernel modules trying to use pvdisplay so i thought it was best to
attempt a recovery on a fully running system).
Since then i upgraded to latest lvmtools (1.0.9 as of this writing).
I neglected from changing any more things, as the data for me is important,
and i cannot afford a loss of this data at this time.
The current state of things is shown below:
[root@terra dev]# fdisk -l
Disk /dev/hdg: 61.4 GB, 61492838400 bytes
16 heads, 63 sectors/track, 119150 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk /dev/hdg doesn't contain a valid partition table
Disk /dev/hdh: 61.4 GB, 61492838400 bytes
16 heads, 63 sectors/track, 119150 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk /dev/hdh doesn't contain a valid partition table
Disk /dev/hde: 4320 MB, 4320862208 bytes
15 heads, 63 sectors/track, 8930 cylinders
Units = cylinders of 945 * 512 = 483840 bytes
Disk /dev/hde doesn't contain a valid partition table
Disk /dev/hdf: 27.3 GB, 27325218816 bytes
16 heads, 63 sectors/track, 52946 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk /dev/hdf doesn't contain a valid partition table
Disk /dev/hda: 123.5 GB, 123522416640 bytes
255 heads, 63 sectors/track, 15017 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 500 4016218+ 83 Linux
/dev/hda2 501 2000 12048750 83 Linux
/dev/hda3 2001 2100 803250 82 Linux swap
/dev/hda4 2101 15017 103755802+ f Win95 Ext'd (LBA)
/dev/hda5 2101 15017 103755771 8e Linux LVM
Disk /dev/hdb: 123.5 GB, 123522416640 bytes
255 heads, 63 sectors/track, 15017 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 15017 120624021 8e Linux LVM
[root@terra dev]#
[root@terra dev]# lvmdiskscan
lvmdiskscan -- reading all disks / partitions (this may take a while...)
lvmdiskscan -- /dev/hdg [ 57.27 GB] USED LVM whole disk
lvmdiskscan -- /dev/hdh [ 57.27 GB] USED LVM whole disk
lvmdiskscan -- /dev/hde [ 4.02 GB] USED LVM whole disk
lvmdiskscan -- /dev/hdf [ 25.45 GB] USED LVM whole disk
lvmdiskscan -- /dev/hda1 [ 3.83 GB] Primary LINUX native partition
[0x83]
lvmdiskscan -- /dev/hda2 [ 11.49 GB] Primary LINUX native partition
[0x83]
lvmdiskscan -- /dev/hda3 [ 784.42 MB] Primary LINUX swap partition
[0x82]
lvmdiskscan -- /dev/hda4 [ 98.95 GB] Primary Windows98 extended
partition [0x0F]
lvmdiskscan -- /dev/hda5 [ 98.95 GB] Extended LVM partition [0x8E]
lvmdiskscan -- /dev/hdb1 [ 115.04 GB] Primary LVM partition [0x8E]
lvmdiskscan -- 6 disks
lvmdiskscan -- 4 whole disks
lvmdiskscan -- 0 loop devices
lvmdiskscan -- 0 multiple devices
lvmdiskscan -- 0 network block devices
lvmdiskscan -- 6 partitions
lvmdiskscan -- 2 LVM physical volume partitions
[root@terra dev]# cat /proc/lvm/global
LVM module LVM version 1.0.5+(22/07/2002)
Total: 1 VG 4 PVs 1 LV (1 LV open 1 times)
Global: 595218 bytes malloced IOP version: 10 23:10:56 active
VG: Volume01 [4 PV, 1 LV/1 open] PE Size: 4096 KB
Usage [KB/PE]: 150978560 /36860 total 150974464 /36859 used 4096 /1
free
PVs: [AA] hde 4214784 /1029 4214784 /1029
0 /0
[AA] hdf 26677248 /6513 26677248 /6513
0 /0
[AA] hdg 60043264 /14659 60043264 /14659
0 /0
[AA] hdh 60043264 /14659 60039168 /14658
4096 /1
LV: [AWDL ] LogVol01 150974464 /36859 1x open
[root@terra dev]#
[root@terra dev]# pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- ACTIVE PV "/dev/hdg" of VG "Volume01" [57.26 GB / 0 free]
pvscan -- ACTIVE PV "/dev/hdh" of VG "Volume01" [57.26 GB / 4 MB free]
pvscan -- ACTIVE PV "/dev/hde" of VG "Volume01" [4.02 GB / 0 free]
pvscan -- ACTIVE PV "/dev/hdf" of VG "Volume01" [25.44 GB / 0 free]
pvscan -- inactive PV "/dev/hda5" is associated to unknown VG "Volume00"
(run vgscan)
pvscan -- inactive PV "/dev/hdb1" is associated to unknown VG "Volume00"
(run vgscan)
pvscan -- total: 6 [358 GB] / in use: 6 [358 GB] / in no VG: 0 [0]
[root@terra dev]# vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- found active volume group "Volume01"
vgscan -- only found 25329 of 54776 LEs for LV /dev/Volume00/LogVol00 (0)
vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't get
data of volume group "Volume00" from physical volume(s)
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
vgscan -- WARNING: This program does not do a VGDA backup of your volume
groups
[root@terra dev]#
[root@terra dev]# lvscan
lvscan -- ACTIVE "/dev/Volume01/LogVol01" [143.98 GB]
lvscan -- 1 logical volumes with 143.98 GB total in 1 volume group
lvscan -- 1 active logical volumes
[root@terra dev]#
[root@terra dev]# pvdisplay -vv /dev/hda5 /dev/hdb1
pvdisplay -- checking physical volume name "/dev/hda5"
pvdisplay -- reading data of physical volume "/dev/hda5" from disk
pvdisplay -- creating physical volume device number from name "/dev/hda5"
pvdisplay -- checking physical volume activity
pvdisplay -- checking physical volume consistency
--- Physical volume ---
PV Name /dev/hda5
VG Name Volume00
PV Size 98.95 GB [207511542 secs] / NOT usable 4.25 MB [LVM:
226 KB]
PV# 1
PV Status NOT available
Allocatable yes (but full)
Cur LV 1
PE Size (KByte) 4096
Total PE 25329
Free PE 0
Allocated PE 25329
PV UUID 6V7qTZ-LnPJ-YqL2-6tp3-DrhY-SrZT-QhVlqg
pvdisplay -- "/etc/lvmtab.d/Volume00" doesn't exist
pvdisplay -- checking physical volume name "/dev/hdb1"
pvdisplay -- reading data of physical volume "/dev/hdb1" from disk
pvdisplay -- creating physical volume device number from name "/dev/hdb1"
pvdisplay -- checking physical volume activity
pvdisplay -- checking physical volume consistency
--- Physical volume ---
PV Name /dev/hdb1
VG Name Volume00
PV Size 115.04 GB [241248042 secs] / NOT usable 4.25 MB [LVM:
243 KB]
PV# 2
PV Status available
Allocatable yes
Cur LV 1
PE Size (KByte) 4096
Total PE 29448
Free PE 1
Allocated PE 29447
PV UUID 4a1ocQ-4Ko5-lJCO-HsYj-j6BH-LbiG-2Kv4l7
pvdisplay -- "/etc/lvmtab.d/Volume00" doesn't exist
I would be extremely happy to receive any kind of help towards retrieval of
the data on Volume00, wether in full, or in parts.
Thank you for taking your time reading this
Regards Stefan P Knecht
_______________________________________________
linux-lvm mailing list
linux-lvm@sistina.com
http://lists.sistina.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
