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[linux-lvm] vgdisplay - checksum error - what does it mean?



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.


--
Tomasz Chmielewski
http://wpkg.org


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