[linux-lvm] Repairing LVM installations
Bradley M Alexander
storm at tux.org
Fri Oct 25 23:56:02 UTC 2002
I have a machine which is running lvm, though not on the root filesystem:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda2 2626536 1590228 1036308 61% /
/dev/vg00/lv_tmp 204788 33008 171780 17% /tmp
/dev/vg00/lv_var 1572812 834604 738208 54% /var
/dev/vg00/lv_home 2621356 1335196 1286160 51% /home
/dev/vg00/lv_usrlocal
1572812 1216152 356660 78% /usr/local
/dev/vg00/lv_opt 524268 272348 251920 52% /opt
/dev/vg00/lv_backup 10485436 8017728 2467708 77% /backup
/dev/vg00/lv_video 11533980 5271576 6262404 46% /usr/local/video
/dev/vg00/lv_archive 18873788 17288044 1585744 92% /archive
This machine has three 30GB drives on it. Drives 2 and 3 (/dev/hdc and
/dev/hde)
I have a separate drive with Win98. Two nights ago, I booted into Windows
to defrag the drive on my Archos mp3 player using Norton. When I fired up
Norton, I misread the message and ended up letting Norton try to find the
partition table, thinking it was the Archos. After about a minute without
seeing the Archos' drive light flicker, I found that something was amiss.
It was cabbaging the LVM drives. /dev/hdc shows the following information
in a pvscan:
pvscan -- physical volume "/dev/ide/host0/bus1/target0/lun0/disc" is not
active
--- Physical volume ---
PV Name /dev/ide/host0/bus1/target0/lun0/disc
VG Name
PV Size 8.03 GB / NOT usable 1.99 TB [LVM: 3.85 GB]
PV# 0
PV Status NOT available
Allocatable yes
Cur LV 260964353
PE Size (KByte) 2097151
Total PE 4255186944
Free PE 4255186029
Allocated PE 915
PV UUID JXhNLv-TtpF-62Lg-CoIs-TMLT-Xg9L-GFfndV
System Id defiant1008649744
Since it was on a Promise controller, which locked up due to the filesystem
damage, I moved the drive on hde to hdd to get it to boot. LVM sees the
data on the PVs. I want to move the extents off of the damaged drives,
starting with hdc. However, when I attempt to do so, I get a message about
the PV being in an inconsistent state:
[defiant /home/storm]# pvmove /dev/hdc
pvmove -- ERROR "pv_check_consistency(): current LV" physical volume
"/dev/hdc" is inconsistent
The same occurs when I try to pvmove /dev/ide/host0/bus1/target0/lun0/disc.
I would like to move the PEs off of the damaged drive and rebuild it, then
move the data back. Is there a way to fix the PV on that particular drive
so I can move the data off (there should be enough free PEs on the other
two drives) and rebuild the drive?
Thanks,
--
--Brad
============================================================================
Bradley M. Alexander | storm [at] debian.org
Debian Developer, Security Engineer | storm [at] tux.org
Debian/GNU Linux Developer | Visit the 99th VFS website at:
99th VFS 'Tuskegee Airmen' | http://99thvfs-ta.org
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