[linux-lvm] uuid already in use
Thomas Krichel
krichel at openlib.org
Tue Jan 8 17:55:28 UTC 2008
Hi,
I have a disk /dev/hdb that appears to be physically
damaged. It is in a volume group vg1. At some
stage it was so bad that I could not see it
raneb:# fdisk /dev/hdb
Unable to open /dev/hdb
I ran
raneb:# vgreduce vg1 --removemissing
but could not restore the volume group to run,
it kept complaing that /dev/hdb was missing.
I read
http://www.novell.com/communities/node/1502/recovering+lost+lvm+volume+disk
and tried to apply the procedure described in the
section "disk permanently removed". I first had
to order a new disk. A new 500G disk arrived today.
After a long shutdown, today the disk appears
visible again, miraculously.
raneb:/etc/lvm/archive# fdisk -l /dev/hdb
Disk /dev/hdb: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/hdb1 1 24321 195358401 83 Linux
So I try to see it in lvm
raneb:/etc/lvm/archive# pvdisplay
Warning: Volume Group vg1 is not consistent
--- Physical volume ---
PV Name /dev/hdd1
VG Name vg1
PV Size 186.31 GB / not usable 3.69 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 47694
Free PE 47694
Allocated PE 0
PV UUID vy3MOc-47sl-zUal-nhdO-FFX3-ispO-Rl0h8p
--- Physical volume ---
PV Name /dev/hdc
VG Name vg1
PV Size 465.76 GB / not usable 4.02 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 119234
Free PE 119234
Allocated PE 0
PV UUID NxRIE1-ROxx-pfjJ-QHzh-7B80-F7wt-kRCmSK
I try to recover the metadata. The correct one is in
vg1_00026.vg, because this is the version before the
"vgreduce vg1 --removemissing". But
raneb:/etc/lvm/archive# pvcreate --uuid v3HXpi-d5QN-OGiW-VFBG-TNIY-qTun-bFhlVd --restorefile vg1_00026.vg /dev/hdb
uuid v3HXpi-d5QN-OGiW-VFBG-TNIY-qTun-bFhlVd already in use on "/dev/hdb1"
I am puzzled. pvdisplay does not see the uuid value but
pvcreate says it is is use?? What am I missing here?
Cheers,
Thomas Krichel http://openlib.org/home/krichel
RePEc:per:1965-06-05:thomas_krichel
skype: thomaskrichel
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