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kevintshaver
n00b
Joined: 14 Feb 2006
Posts: 49
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 Posted: Sun Mar 29, 2009 4:54 pm Post subject: [solved] LVM Incorrect metadata area header checksum |
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I need some help on this new LVM error I've been getting. Normally, I log in and run and to make /dev/vg0 available. This morning I did the same thing and got some errors.
| Code: | server ~ # vgscan
Reading all physical volumes. This may take a while...
Incorrect metadata area header checksum
Incorrect metadata area header checksum
Volume group "vg0" inconsistent
Incorrect metadata area header checksum
WARNING: Inconsistent metadata found for VG vg0 - updating to use version 7
Incorrect metadata area header checksum
Automatic metadata correction failed |
Some other things that might help:
| Code: | server ~ # vgcfgrestore vg0
Incorrect metadata area header checksum
Incorrect metadata area header checksum
Restore failed. |
| Code: | server ~ # vgdisplay
Incorrect metadata area header checksum
Incorrect metadata area header checksum
Incorrect metadata area header checksum
WARNING: Volume group "vg0" inconsistent
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 7
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 4
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 2.73 TB
PE Size 4.00 MB
Total PE 715400
Alloc PE / Size 486400 / 1.86 TB
Free PE / Size 229000 / 894.53 GB
VG UUID HwLcZs-65mL-uRSz-B55c-zjb8-FlH4-9qR5bl |
| Code: | server ~ # pvdisplay
Incorrect metadata area header checksum
Incorrect metadata area header checksum
WARNING: Volume Group vg0 is not consistent
Incorrect metadata area header checksum
Incorrect metadata area header checksum
--- Physical volume ---
PV Name /dev/dm-0
VG Name vg0
PV Size 2.73 TB / not usable 4.00 KB
Allocatable yes
PE Size (KByte) 4096
Total PE 715400
Free PE 229000
Allocated PE 486400
PV UUID TncGxJ-53Cj-FEqT-WVwd-pv96-5zRO-30AH0e |
| Code: | server ~ # fdisk -l
Disk /dev/sda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x904d904e
Device Boot Start End Blocks Id System
/dev/sda1 * 1 9 72261 83 Linux
/dev/sda2 10 265 2056320 82 Linux swap / Solaris
/dev/sda3 266 24321 193229820 83 Linux
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x605ca212
Device Boot Start End Blocks Id System
/dev/sdb1 1 121601 976760001 fd Linux raid autodetect
Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x7bc1e74a
Device Boot Start End Blocks Id System
/dev/sdc1 1 121601 976760001 fd Linux raid autodetect
Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x3c145983
Device Boot Start End Blocks Id System
/dev/sdd1 1 121601 976760001 fd Linux raid autodetect
Disk /dev/sde: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x88d53d18
Device Boot Start End Blocks Id System
/dev/sde1 1 121601 976760001 fd Linux raid autodetect
Disk /dev/md0: 3000.6 GB, 3000606523392 bytes
2 heads, 4 sectors/track, 732569952 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x08040000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/dm-0: 3000.6 GB, 3000605470720 bytes
255 heads, 63 sectors/track, 364802 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/dm-0 doesn't contain a valid partition table |
Could it have something to do with the /dev/md0 and /dev/dm-0 devices? What's the difference between these two?
Previously, the lvm.conf was working fine, but I modified the filter because I see this error can sometimes be caused by scanning non-LVM devices. My new filter line is:
| Code: | | filter = [ "a|^/dev/mapper/vault$|", "r/.*/" ] |
I'm stuck. Thanks in advance.
Last edited by kevintshaver on Thu Apr 02, 2009 1:58 am; edited 1 time in total |
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kevintshaver
n00b
Joined: 14 Feb 2006
Posts: 49
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| Posted: Wed Apr 01, 2009 6:15 pm Post subject: |
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I also noticed these lines in lvdisplay if it helps.
| Code: | server ~ # lvdisplay
Incorrect metadata area header checksum
Incorrect metadata area header checksum
Incorrect metadata area header checksum
Volume group "vg0" inconsistent
Incorrect metadata area header checksum
Incorrect metadata area header checksum
WARNING: Inconsistent metadata found for VG vg0 - updating to use version 7
Incorrect metadata area header checksum
Automatic metadata correction failed
Internal error: Volume Group vg0 was not unlocked
Device '/dev/dm-0' has been left open.
Device '/dev/dm-0' has been left open.
Device '/dev/dm-0' has been left open. |
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kevintshaver
n00b
Joined: 14 Feb 2006
Posts: 49
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| Posted: Thu Apr 02, 2009 2:01 am Post subject: |
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Here's the fix. It seems a bit risky but I didn't end up with any lost data.
| Code: | pvcreate -ff -u TncGxJ-53Cj-FEqT-WVwd-pv96-5zRO-30AH0e --restorefile /etc/lvm/backup/vg0 /dev/mapper/vault
vgcfgrestore vg0 |
change the uuid after -u to the pv0 uuid in /etc/lvm/backup/vg0 and change vg0 to your volume group name |
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