[linux-lvm] vgdisplay - checksum error - what does it mean?
Tomasz Chmielewski
mangoo at wpkg.org
Thu Feb 15 15:23:33 UTC 2007
Tomasz Chmielewski schrieb:
> Recently, I used "vgdisplay", and noticed that it gives a "checksum error":
>
> # vgdisplay
> /dev/sda2: Checksum error
> --- Volume group ---
> VG Name LVM2
> System ID
> Format lvm2
> Metadata Areas 1
> Metadata Sequence No 49
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 34
> Open LV 34
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 743.16 GB
> PE Size 4.00 MB
> Total PE 190250
> Alloc PE / Size 175807 / 686.75 GB
> Free PE / Size 14443 / 56.42 GB
> VG UUID yV2ADe-MeJd-dHbd-ExLP-AIu3-OTA2-u46qhl
>
>
> Should I be scared? What does it mean? What should I do about it? I
> wouldn't like to loose the data.
>
> If it helps, my setup looks like that:
>
> HDD1-sda2-\
> HDD2-sdb2-|__RAID-10--LVM-2
> HDD3-sdc2-|
> HDD4-sdd2-/
>
> I'm running 2.6.17.8 kernel.
Hmmm... isn't it something that tells about the history of that system?
# lvmdiskscan | egrep '(sd|md)'
/dev/sda2: Checksum error
/dev/md0 [ 1.03 GB]
/dev/md1 [ 1.03 GB]
/dev/sda2 [ 371.58 GB] LVM physical volume
/dev/md2 [ 743.16 GB] LVM physical volume
/dev/sdb2 [ 371.58 GB]
/dev/sdc2 [ 371.58 GB]
/dev/sdd2 [ 371.58 GB]
/dev/md0 is RAID-1 -> swap
/dev/md1 is RAID-1 -> root filesystem
/dev/md2 is RAID-10 -> all LVM volumes
So this basically means, that LVM was set up on /dev/sda2 some time ago,
but it was never removed from there - instead, RAID-10 was set up on
that partition?
Should I do something to fix the things? What?
--
Tomasz Chmielewski
http://wpkg.org
More information about the linux-lvm
mailing list