Hello
I have had lvm running for quite some time and it was all running smoothly.
Lately i have occasionally gotten some i/o errors retrieving data off my Volumes,
so i decided to run an fsck. After unmounting the Volume, fsck ran fine, and
fixed a couple Inodes. The usual. Once it has finished i was unable to mount the
volume, linux kept complainig that "/dev/Volume00/LogVol00 already mounted, or /data is busy".
As i was unable to determine the reason for this (after checking fuser and who output to make
sure no process was still accessing /data/*), i rebooted the box.
That's when the hassle began to become intruiging.
Linux complained that it couldn't mount the Volume, and dropped me into a Filesystem recovery
shell.
And the system state i was left with then, is what i'm stuck with as of now....
I am unable to mounnt the volume, not to mention access my data.
I have not changed the system, or otherwise tampererd with the lvm installation, as i have one
other Volume on the system, which is still stable and well.
Below i have included the information i was able to gather:
[root@terra root]# 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 root]# 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 root]# 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 root]# 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: 595217 bytes malloced IOP version: 10 1:44:17 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 root]# uname -a
Linux terra 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003 i686 i686 i386 GNU/Linux
[root@terra root]# 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 root]# 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 root]# 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
(sorry for putting this twice, but this is a telnet session to sendmail, from here the only way for
me to send mail so i cannot erase it easily :) )
Anyhow, i think this lays out my problem... and i would be so very happy to receive any hint
on how to get access to that data back.
I thank you in advance for your time,
regards Stefan P Knecht
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