On 08/04/2008, Ezra Taylor <ezra.taylor@(protected):
>
> Hello all:
>          I just inherited a box that's running LVM2. This box has
> two
> volume groups with the same name but they both have different UUID
> numbers.
> Is it a problem to have a box like this? If so, how can I recover? The
> output of displayvg and pvscan is below.
>
>
>  sudo /usr/sbin/vgdisplay
>  --- Volume group ---
>  VG Name          SysVG
>  System ID
>  Format           lvm2
>  Metadata Areas     1
>  Metadata Sequence No 8
>  VG Access         read/write
>  VG Status         resizable
>  MAX LV           0
>  Cur LV           7
>  Open LV          7
>  Max PV           0
>  Cur PV           1
>  Act PV           1
>  VG Size          273.38 GB
>  PE Size          32.00 MB
>  Total PE         8748
>  Alloc PE / Size     2112 / 66.00 GB
>  Free PE / Size     6636 / 207.38 GB
>  VG UUID          rS82Le-cEA5-MDxm-7zza-x0ve-gxYp-txZQT0
>
>  --- Volume group ---
>  VG Name          SysVG
>  System ID
>  Format           lvm2
>  Metadata Areas     1
>  Metadata Sequence No 8
>  VG Access         read/write
>  VG Status         resizable
>  MAX LV           0
>  Cur LV           7
>  Open LV          7
>  Max PV           0
>  Cur PV           1
>  Act PV           1
>  VG Size          67.94 GB
>  PE Size          32.00 MB
>  Total PE         2174
>  Alloc PE / Size     2112 / 66.00 GB
>  Free PE / Size     62 / 1.94 GB
>  VG UUID          haTLf2-kby5-fPxh-pVGx-7lD5-ZYpa-nI6EvK
>
>
>
>  sudo /usr/sbin/pvscan
>  PV /dev/cciss/c0d1p1  VG SysVG  lvm2 [273.38 GB / 207.38 GB free]
>  PV /dev/cciss/c0d0p2  VG SysVG  lvm2 [67.94 GB / 1.94 GB free]
>  Total: 2 [341.31 GB] / in use: 2 [341.31 GB] / in no VG: 0 [0  ]
>
>
> --
> Ezra Taylor
>

I suppose that this could be caused when exporting/importing volume groups
from another system.
You could try to rename one of the volume groups using vgsplit. It has a -t
option to test first, so you should be save. Something like this should do
the trick:

 # vgsplit -A y -t SysVG MyVG /dev/cciss/c0d0p2

If this looks OK, repeat without the "-t" option.

Kind regards,

Herta

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