[linux-lvm] LVM and Device Mapper

[C'est Pierre]

Thank all of you for the support! I finally made it (I hope I have no
more questions to put up here ;-)

Pierre


On 6/17/06, Luca Berra <bluca at comedia.it> wrote:
> On Fri, Jun 16, 2006 at 10:20:17AM -0500, Kelly Sauke wrote:
> >C'est Pierre wrote:
> >> That kinda worked out. I tried your example as-is, and it still shows
> >> 'Found duplicate PV' messages and additionally it said "vg sucessfully
> >> created" but in fact, when I issue a vgdisplay, it doesn't show the vg
> >> created.
> >>
> >
> >Try excluding all of your sd paths in the filter line.  If you look at my
> >example, it seems my local disk /dev/sda2, my mpath devices and then it hides
> >everything else.  Thats how I got the 'Found duplicate PV' errors to go away.
> >
> >After setting that, run an lvmdiskscan to verify that its seeing your multipath
> >devices and excuding the sd devices.
>
> yes, please edit your filter line, so it will ignore the /dev/sd*
> devices
> >
> ....
> >>  (erased the other VG)
> >>  --- Volume group ---
> >>  VG Name               clusterfs
> >>  System ID
> >>  Format                lvm2
> >>  Metadata Areas        1
> >>  Metadata Sequence No  2
> >>  VG Access             read/write
> >>  VG Status             resizable
> >>  MAX LV                0
> >>  Cur LV                1
> >>  Open LV               0
> >>  Max PV                0
> >>  Cur PV                1
> >>  Act PV                1
> >>  VG Size               50.00 GB
> >>  PE Size               4.00 MB
> >>  Total PE              12799
> >>  Alloc PE / Size       25 / 100.00 MB
> >>  Free  PE / Size       12774 / 49.90 GB
> >>  VG UUID               QxEuzf-SJMU-mmlo-c4mr-6SLs-AU6X-X8A6Fi
> >>
> >>
> >> # lvdisplay
> >>  (skipped the others)
> >>  --- Logical volume ---
> >>  LV Name                /dev/clusterfs/ora1
> >>  VG Name                clusterfs
> >>  LV UUID                hAt2Tx-Tf2U-oD10-3W77-sIo6-Q3nf-5fG3AT
> >>  LV Write Access        read/write
> >>  LV Status              available
> >>  # open                 0
> >>  LV Size                100.00 MB
> >>  Current LE             25
> >>  Segments               1
> >>  Allocation             inherit
> >>  Read ahead sectors     0
> >>  Block device           253:8
> >>
> seems the lv was not activated, i don't know why, maybe some interaction
> with udev?
>
> >>
> >> # mkfs.ext3  /dev/clusterfs/ora1
> >> mke2fs 1.38 (30-Jun-2005)
> >> mkfs.ext3: Device size reported to be zero.  Invalid partition
> >> specified, or
> >>        partition table wasn't reread after running fdisk, due to
> >>        a modified partition being busy and in use.  You may need to reboot
> >>        to re-read your partition table.
> >>
> try vgchange -a y again after fixing your lvm.conf as explained above.
>
> L.
>
> --
> Luca Berra -- bluca at comedia.it
>         Communication Media & Services S.r.l.
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