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Re: [linux-lvm] LVM and Device Mapper



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 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 comedia it
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