[linux-lvm] LVM and Device Mapper
Luca Berra
bluca at comedia.it
Sat Jun 17 00:42:34 UTC 2006
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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