Re: vgcreate confused by PVs on whole disk

[Steve <pf%unliketea.com@localhost>]

Are you using redundant links to SAN or SAN like storage?
That is what this looks like.

Do a pv display on the disks in questions, you might find that the 
drives are already in use.

Steve

On 2012-03-02 14:16, Louis Guillaume wrote:
> Hi,
>
> I'm trying to create a volume group with 2 disk members that are
> available to my system. There's no need for bootability, so I'm using
> the whole raw disk partition. When it gets to "vgcreate" I get an
> error like this:
>
>   Found duplicate PV 5ei5O3Q1MfECIBfK52fKHotRoHhntt2v: using
> /dev/rxbd1d not /dev/rxbd1a
>   /dev/rxbd2e: open failed: Device not configured
>
>
> The VG is still created, but the message makes me nervous. Is this
> message as serious as it sounds?
>
> Details about the setup are below. Any help would be great. Thanks!
>
>
> Louis
>
>
>
> --
>
> This is on netbsd-5.99.59, amd64, XEN3_DOMU. The disks were prepared
> like this...
>
> == Wiped like this... ==
>
> # dd if=/dev/zero of=/dev/rxbd2d bs=1k count=1000
> 1000+0 records in
> 1000+0 records out
> 1024000 bytes transferred in 5.995 secs (170809 bytes/sec)
>
> == gpt'd like this ==
>
> # gpt create xbd1
> # gpt create xbd2
> # gpt show xbd1
>     start     size  index  contents
>         0        1         PMBR
>         1        1         Pri GPT header
>         2       32         Pri GPT table
>        34  4194237
>   4194271       32         Sec GPT table
>   4194303        1         Sec GPT header
> # gpt show xbd2
>      start      size  index  contents
>          0         1         PMBR
>          1         1         Pri GPT header
>          2        32         Pri GPT table
>         34  12582845
>   12582879        32         Sec GPT table
>   12582911         1         Sec GPT header
>
>
>
> == Disklabeled like this ==
>
> #        size    offset     fstype [fsize bsize cpg/sgs]
>  d:   4194304         0     unused      0     0        # (Cyl.      0
> -   2047)
>
> #        size    offset     fstype [fsize bsize cpg/sgs]
>  d:  12582912         0     unused      0     0        # (Cyl.      0
> -   6143)
>
>
> == PVs created ==
>
> # lvm pvcreate /dev/rxbd1d
>   Physical volume "/dev/rxbd1d" successfully created
> # lvm pvcreate /dev/rxbd2d
>   Physical volume "/dev/rxbd2d" successfully created
>
>
> == VG creation with errors ==
>
> # lvm vgcreate slowvg /dev/rxbd1d /dev/rxbd2d
>   Found duplicate PV 5ei5O3Q1MfECIBfK52fKHotRoHhntt2v: using
> /dev/rxbd1d not /dev/rxbd1a
>   /dev/rxbd2e: open failed: Device not configured
>   Found duplicate PV zXxt1AWCwPdoHeTd2PO9R6ELmZJbcLWv: using
> /dev/rxbd2a not /dev/rxbd2d
>   Volume group "slowvg" successfully created